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Prairie Dog Pals

Dedicated to the Preservation of Prairie Dogs and their Habitat

Treatment of Pain in Rats, Mice, and Prairie Dogs.

November 29, 2022 by PDP

Item 1-1 of 1 (Display the 1 citation in PubMed)

1. Vet Clin North Am Exot Anim Pract. 2023 Jan;26(1):151-174. doi: 10.1016/j.cvex.2022.07.005.

Treatment of Pain in Rats, Mice, and Prairie Dogs.

Oates R(1), Tarbert DK(2).

Author information: (1)Research and Teaching Animal Care Program, University of California – Davis, One Shields Avenue, Davis, CA 95616, USA. Electronic address: rsoates@ucdavis.edu. (2)Companion Exotic Animal Medicine and Surgery Service, Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California – Davis, One Shields Avenue, Davis, CA 95616, USA.

Recent myomorph and scuiromorph rodent analgesia studies are reviewed and evaluated for potential clinical application. Differences between laboratory animal studies and clinical use in diseased animals are discussed. Analgesia classes reviewed include local anesthetics, nonsteroidal anti-inflammatories, acetaminophen, opioids, and adjuvants such as anticonvulsants. Routes of administration including sustained-release mechanisms are discussed, as are reversal agents. Drug interactions are reviewed in the context of beneficial multimodal analgesia as well as potential adverse effects. Dosage recommendations for clinical patients are explored.

Published by Elsevier Inc.

DOI: 10.1016/j.cvex.2022.07.005 PMID: 36402479 [Indexed for MEDLINE]

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July 31, 2022 by PDP

Am J Vet Res. 2022 Jul 11;83(9):ajvr.21.11.0193. doi: 10.2460/ajvr.21.11.0193.

Authors

Kara Hiebert  1 , David Eshar  1 , Jasmine Sarvi  1 , Hugues Beaufrère  2

Affiliations

  • 1 Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS.
  • 2 Department of Veterinary Medicine and Epidemiology, UC Davis School of Veterinary Medicine, Davis, CA.
  • PMID: 35895768
  • DOI: 10.2460/ajvr.21.11.0193

Free article

Abstract

Objective: To evaluate and compare the anesthetic effects of alfaxalone-ketamine-midazolam (AKM) and alfaxalone-ketamine-dexmedetomidine (AKD) in black-tailed prairie dogs (Cynomys ludovicianus).

Animals: 9 male black-tailed prairie dogs.

Procedures: Prairie dogs were anesthetized with AKM (6 mg/kg alfaxalone, 30 mg/kg ketamine, and 1.5 mg/kg midazolam) and AKD (6 mg/kg alfaxalone, 30 mg/kg ketamine, and 0.15 mg/kg dexmedetomidine) in a prospective, complete cross-over study. Atipamezole (1.5 mg/kg) after AKD or flumazenil (0.1mg/kg) after AKM was administered 45 minutes after induction of anesthesia. Onset of general anesthesia, physiologic parameters, depth of anesthesia, and time to recovery after reversal administration were evaluated for each treatment.

Results: Both AKM and AKD produced a deep plane of anesthesia in black-tailed prairie dogs that varied in duration. The median induction times for AKM and AKD were 82 and 60 seconds, respectively. The median recovery times for AKM and AKD were 27 and 21 minutes, respectively. There were no significant differences between protocols for induction (P = .37) and recovery (P = .51) times. All measured reflexes were absent in all animals at 5 minutes postinduction, with hindlimb reflexes returning prior to forelimb reflexes. Heart rate was lower but respiratory rate was higher in the AKD treatment. Body temperature decreased significantly for both protocols (P < .001) and was significantly lower with AKM than AKD (P < .001).

Clinical relevance: Both AKM and AKD produced a deep plane of anesthesia in black-tailed prairie dogs. For both protocols, heat support and oxygen support are indicated.

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Reevaluation of the Role of Blocked Oropsylla hirsuta Prairie Dog Fleas (Siphonaptera: Ceratophyllidae) in Yersinia pestis (Enterobacterales: Enterobacteriaceae) Transmission.

April 10, 2022 by PDP

Miarinjara A(1)(2), Eads DA(3), Bland DM(1), Matchett MR(4), Biggins DE(3), Hinnebusch BJ(1). Author information: (1)Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, NIH, Hamilton, MT, USA. (2)Department of Environmental Sciences, Emory University, Atlanta, GA, USA. (3)U.S. Geological Survey, Fort Collins Science Center, Fort Collins, CO, USA. (4)U.S. Fish and Wildlife Service, Lewistown, MT, USA. Prairie dogs in the western United States experience periodic epizootics of plague, caused by the flea-borne bacterial pathogen Yersinia pestis. An early study indicated that Oropsylla hirsuta (Baker), often the most abundant prairie dog flea vector of plague, seldom transmits Y. pestis by the classic blocked flea mechanism. More recently, an alternative early-phase mode of transmission has been proposed as the driving force behind prairie dog epizootics. In this study, using the same flea infection protocol used previously to evaluate early-phase transmission, we assessed the vector competence of O. hirsuta for both modes of transmission. Proventricular blockage was evident during the first two weeks after infection and transmission during this time was at least as efficient as early-phase transmission 2 d after infection. Thus, both modes of transmission likely contribute to plague epizootics in prairie dogs. Published by Oxford University Press on behalf of Entomological Society of America 2022. DOI: 10.1093/jme/tjac021 PMID: 35380675

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Am J Vet Res. 2019 Dec;80(12):1114-1121. doi: 10.2460/ajvr.80.12.1114. Comparison of the effects of a dexmedetomidine-ketamine-midazolam anesthetic protocol versus isoflurane inhalation anesthesia on echocardiography variables and plasma cardiac troponin I concentration in black-tailed prairie dogs (Cynomys ludovicianus).

December 7, 2019 by PDP

Ross E, Thomason JD, Browning GR, Beaufrère H, Eshar D.

Abstract

OBJECTIVE:

To compare the effects of a dexmedetomidine-ketamine-midazolam (DKM) anesthetic protocol versus isoflurane inhalation anesthesia on echocardiographic variables and plasma cardiac troponin 1 (cTnI) concentration in black-tailed prairie dogs (BTPDs; Cynomys ludovicianus)

ANIMALS:

Nine 6-month-old sexually intact male captive BTPDs.

PROCEDURES:

Each BTPD was randomly assigned to be anesthetized by IM administration of dexmedetomidine (0.25 mg/kg), ketamine (40 mg/kg), and midazolam (1.5 mg/kg) or via inhalation of isoflurane and oxygen. Three days later, each BTPD underwent the alternative anesthetic protocol. Echocardiographic data and a blood sample were collected within 5 minutes after initiation and just prior to cessation of each 45-minute-long anesthetic episode.

RESULTS:

Time or anesthetic protocol had no significant effect on echocardiographic variables. For either protocol, plasma cTnI concentration did not differ with time. When administered as the first treatment, neither anesthetic protocol significantly affected plasma cTnI concentration. However, with regard to findings for the second treatments, plasma cTnI concentrations in isoflurane-treated BTPDs (n = 4; data for 1 animal were not analyzed because of procedural problems) were higher than values in DKM-treated BTPDs (4), which was suspected to be a carryover effect from prior DKM treatment.

CONCLUSIONS AND CLINICAL RELEVANCE:

The DKM and isoflurane anesthetic protocols did not have any significant effect on echocardiographic measurements in the BTPDs. Increases in plasma cTnI concentration during the second anesthetic episode were evident when BTPDs underwent the DKM anesthetic protocol as the first of the 2 treatments, suggestive of potential myocardial injury associated with that anesthetic protocol. Clinicians should consider these findings, especially when evaluating BTPDs with known or suspected cardiac disease.

 

PMID: 31763940
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Endangered wildlife are getting dosed with rat poisons

February 27, 2019 by PDP

People who consider rodents to be pests often turn to an array of products, known as anticoagulant rodenticides, which are marketed to lethally “solve” the issue with poisoned bait. But researchers have been collecting evidence for years showing that it’s not just nuisance rats that can end up dead.

Some of the most recent studies, conducted in California, found that everything from Pacific fishers to bobcats to northern spotted owls often become victims of rodenticides. The list of potentially affected wildlife is long – basically anything that preys on a rodent could be at risk, because the poisons are so toxic they travel up the food chain, and in some cases, can remain in an animal’s body for years. It can even leapfrog in utero from one generation to the next.

 

 

Read more:  Poison

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US Rejects Federal Protection for White-tailed Prairie Dogs

December 6, 2017 by PDP

PINEDALE, WYOMING — 

The white-tailed prairie dog will not be declared an endangered or threatened species after the U.S. government deemed on Tuesday there was no danger despite declines in its population from human development and disease.

Read more at:  Pinedale

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Prairie dogs have a new plague vaccine

November 15, 2017 by PDP

By R. Scott Nolen

Posted Nov. 15, 2017

A new oral vaccine bait can help protect prairie dogs against sylvatic plague and possibly assist in the recovery of black-footed ferrets, one of the most endangered mammals in North America.

Sylvatic plague, a bacterial disease caused by Yersinia pestis, affects numerous wild and domestic animal species as well as humans. Developed specifically for prairie dogs by scientists at the U.S. Geological Survey’s National Wildlife Health Center and the University of Wisconsin-Madison, the peanut butter–flavored vaccine elicits a protective immune response that can help vaccinated prairie dogs fight off infection after later exposure to the disease. Read more:  Vaccine

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Treatment of malocclusion in squirrel

August 27, 2017 by PDP

This is an interesting article about a squirrel with malocclusion.  Over the years we have captured prairie dogs with similar problems.  Sometimes a simple clipping of the teeth sets them to right.  Other times the malocclusion cannot be rectified and the animal cannot be released.  In these cases the prairie dog and the person fostering it face a decision of removing the incisors or a lifetime of trimming.  Jim T previously and is currently fostering such a prairie dog.

Here’s the original note that appeared on our Facebook page:  Congrats to Mikey! As he was processing in today, doing the 2/4/20 (2 eyes, 4 teeth, 20 toes) he noted that the PD had ram’s horn teeth. The disorder is usually caused by dislocation of the teeth preventing them from meeting and keeping the upper and lower incisors in check. In this particular case the PD had been born without lower teeth, or had lost them at some point in its life. Eventually they would have grown through roof of the mouth and caused death by starvation or infection. YB and C Rex, trimmed the teeth but without lower teeth to keep the uppers in check, it is likely this this PD will not be released. While I don’t have a picture the upper teeth were about 1″ long and curved back into the mouth. The fact that this PD did not starve indicates that he was able to get enough nutrition using his molars.

It is reassuring that the treatment seems to work well for prairie dogs as well.  Read More:  Treatment of malocclusion in squirrel

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Setting right the myths about prairie dogs

August 25, 2017 by PDP

Right up front, I am stating that I am not worried about getting the plague, my horses are not going to break their legs in prairie dogs holes and prairie dogs have not destroyed any of my plantings (since they graze primarily on grasses).

Read more:  Facts

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Court mandates protection of Utah Prairie Dogs on non-federal lands

August 23, 2017 by PDP

The 10th Circuit Court of Appeals in Denver has issued a mandate which reinstates Endangered Species Act (ESA) regulation of the threatened Utah prairie dog on non-federal lands. The decision overturns a 2014 U.S. District Court for the District of Utah decision that removed federal ESA protection for the species on non-federal lands and transferred management to the State of Utah. The species is now regulated under the ESA across all land ownerships.

Read More:  Utah

South Dakota

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Black-tailed prairie dogs at home in the heart of a West Texas town

August 19, 2017 by PDP

A visit to prairie dog towns in Odessa was not on my agenda during a recent vacation to Big Bend National Park.

But a mountain bicycle accident had me laid up for week in the city’s hospital, while Kathy gave me daily reports about prairie dogs she had seen between the hotel and the hospital. She told me how the squirrel-size mammals stood smartly on their hind legs atop cone-shaped dirt mounds over an intricate network of subterranean abodes forming their townships.

Read More:  Odessa

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Of Cadillacs and Prairie Dogs

June 20, 2017 by PDP

On a summer evening years ago, I dined with a group of friends at a rural Midwest restaurant where the parking lot was a patch of rough ground without marked bays. We came out to find a Cadillac parked close in beside our car. Edging into the gap between the vehicles (the other side was also tight), we did our best to get the doors far enough open to slide in without dinging the Cadillac. Our close approach triggered the Cadillac’s motion-sensitive theft alarm. A loud synthesized voice told us: “You are standing too close to the car! Step! Away! From the car!”

Read more:  Language

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Flea and Small Mammal Species Composition in Mixed-Grass Prairies: Implications for the Maintenance of Yersinia pestis.

May 21, 2017 by PDP

This message contains search results from the National Center for Biotechnology Information (NCBI) at the U.S. National Library of Medicine (NLM). Do not reply directly to this message

Sent on: Sat May 20 21:45:09 2017

1 selected item: 28520514

PubMed Results

Item 1 of 1    (Display the citation in PubMed)

1. Vector Borne Zoonotic Dis. 2017 May 18. doi: 10.1089/vbz.2016.2069. [Epub ahead of print]

Maestas LP1, Britten HB1.

Author information:

1Department of Biology, University of South Dakota , Vermillion, South Dakota.

Abstract

Maintenance of sylvatic plague in prairie dogs (Cynomis spp.) was once thought unlikely due to high mortality rates; yet more recent findings indicate that low-level enzootic plague may be maintained in susceptible prairie dog populations. Another hypothesis for the maintenance of sylvatic plague involves small mammals, other than prairie dogs, as an alternative reservoir in the sylvatic plague system. These hypotheses, however, are not mutually exclusive, as both prairie dogs and small mammals could together be driving sylvatic cycles of plague. The concept of a bridging vector has been used to explain the transmission of pathogens from one host species to another. In the case of sylvatic plague, this would require overlap in fleas between small mammals and prairie dogs, and potentially other species such as carnivores. Our goal was to evaluate the level of flea sharing between black-tailed prairie dogs (Cynomis ludovicianus) and other small mammals in a mixed-grass prairie in South Dakota. We investigated the species richness of small mammals and small-mammal fleas in a mixed-grass prairie system and compared findings with previous studies from a short-grass ecosystem in Colorado. Over the summer field seasons 2014-2016 we live-trapped small mammals, collected fleas, and showed differences between both the flea and small mammal composition of the two systems. We also recorded higher densities of deer mice and lower densities of northern grasshopper mice in mixed versus shortgrass prairies. We confirmed, as is the case in shortgrass prairies, a lack of substantial flea species overlap on small mammal hosts and fleas from prairie dogs and their burrows. Moreover this study demonstrates that although small mammals may not play a large part in interepizootic plague cycling in shortgrass prairie ecosystems, their role in mixed-grass prairies requires further evaluation.

PMID: 28520514
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Grief in Prairie Dogs: Mourning a Death in the Family

May 16, 2017 by PDP

Grief and mourning are more widespread among nonhuman animals (animals) than previously thought (please also see). Today, while riding my bike north of Boulder, I observed an interaction between an adult Black-tailed prairie dog who looked to be a female and a youngster who had been killed by a car. It looked like the accident had happened a few minutes before I happened on the sorrowful scene. I was astounded by what I saw, so I stopped and dictated some notes into my phone that went as follows:

I just watched an adult prairie dog who I think is a female trying to retrieve the carcass of a smaller prairie dog off the road five times – she clearly was trying to remove the carcass from the road – I stopped and finally after the cars stopped she dragged the carcass off the road, walked about 10 feet away, looked at me and looked at the carcass, went back to the carcass and touched it lightly with her forepaws, and walked away emitting a very high-pitched vocalization.

I waited a few minutes to see if she would go back to the carcass and she began to move toward it, looked at me, and stopped — so I left because I didn’t want to disrupt her saying good-bye if that was what she was going to do  — minutes later, when I finally caught up with another rider who was about 100 meters ahead of me, he told me he saw her try to remove the carcass from the road twice.

 

Read more:  Mourn

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Can prairie dogs talk?

May 13, 2017 by PDP

Con Slobodchikoff and I approached the mountain meadow slowly, obliquely, softening our footfalls and conversing in whispers. It didn’t make much difference. Once we were within 50 feet of the clearing’s edge, the alarm sounded: short, shrill notes in rapid sequence, like rounds of sonic bullets.

We had just trespassed on a prairie-dog colony. A North American analogue to Africa’s meerkat, the prairie dog is trepidation incarnate. It lives in subterranean societies of neighboring burrows, surfacing to forage during the day and rarely venturing more than a few hundred feet from the center of town. The moment it detects a hawk, coyote, human or any other threat, it cries out to alert the cohort and takes appropriate evasive action. A prairie dog’s voice has about as much acoustic appeal as a chew toy. French explorers called the rodents petits chiens because they thought they sounded like incessantly yippy versions of their pets back home.

On this searing summer morning, Slobodchikoff had taken us to a tract of well-trodden wilderness on the grounds of the Museum of Northern Arizona in Flagstaff. Distressed squeaks flew from the grass, but the vegetation itself remained still; most of the prairie dogs had retreated underground. We continued along a dirt path bisecting the meadow, startling a prairie dog that was peering out of a burrow to our immediate right. It chirped at us a few times, then stared silently.

“Hello,” Slobodchikoff said, stooping a bit. A stout bald man with a scraggly white beard and wine-dark lips, Slobodchikoff speaks with a gentler and more lilting voice than you might expect. “Hi, guy. What do you think? Are we worth calling about? Hmm?”

Read More:  Talk

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Responses of Juvenile Black-Tailed Prairie Dogs ( Cynomys ludovicianus ) to a Commercially Produced Oral Plague Vaccine Delivered at Two Doses.

May 7, 2017 by PDP

This message contains search results from the National Center for Biotechnology Information (NCBI) at the U.S. National Library of Medicine (NLM). Do not reply directly to this message

Sent on: Sun May 7 04:19:27 2017

1 selected item: 28463626

PubMed Results

Item 1 of 1    (Display the citation in PubMed)

1. J Wildl Dis. 2017 May 2. doi: 10.7589/2017-02-033. [Epub ahead of print]

Responses of Juvenile Black-Tailed Prairie Dogs ( Cynomys ludovicianus ) to a Commercially Produced Oral Plague Vaccine Delivered at Two Doses.

Cárdenas-Canales EM1, Wolfe LL1, Tripp DW1, Rocke TE2, Abbott RC2, Miller MW1.

Author information:

11 Colorado Division of Parks and Wildlife, Wildlife Health Program, Foothills Wildlife Research Facility, 4330 Laporte Ave., Fort Collins, Colorado 80521-2153, USA.22 United States Geological Survey, National Wildlife Health Center, 6006 Schroeder Road, Madison, Wisconsin 53711, USA.

Abstract

We confirmed safety and immunogenicity of mass-produced vaccine baits carrying an experimental, commercial-source plague vaccine (RCN-F1/V307) expressing Yersinia pestis V and F1 antigens. Forty-five juvenile black-tailed prairie dogs ( Cynomys ludovicianus ) were randomly divided into three treatment groups (n=15 animals/group). Animals in the first group received one standard-dose vaccine bait (5×107 plaque-forming units [pfu]; STD). The second group received a lower-dose bait (1×107 pfu; LOW). In the third group, five animals received two standard-dose baits and 10 were left untreated but in contact. Two vaccine-treated and one untreated prairie dogs died during the study, but laboratory analyses ruled out vaccine involvement. Overall, 17 of 33 (52%; 95% confidence interval for binomial proportion [bCI] 34-69%) prairie dogs receiving vaccine-laden bait showed a positive anti-V antibody response on at least one sampling occasion after bait consumption, and eight (24%; bCI 11-42%) showed sustained antibody responses. The STD and LOW groups did not differ (P≥0.78) in their proportions of overall or sustained antibody responses after vaccine bait consumption. Serum from one of the nine (11%; bCI 0.3-48%) surviving untreated, in-contact prairie dogs also had detectable antibody on one sampling occasion. We did not observe any adverse effects related to oral vaccination.

PMID: 28463626
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Anaplastic large T cell lymphoma in three black-tailed prairie dogs (Cynomys ludovicianus).

May 7, 2017 by PDP

This message contains search results from the National Center for Biotechnology Information (NCBI) at the U.S. National Library of Medicine (NLM). Do not reply directly to this message

Sent on: Sun May 7 04:21:36 2017

1 selected item: 28458276

PubMed Results

Item 1 of 1    (Display the citation in PubMed)

1. J Vet Med Sci. 2017 May 1. doi: 10.1292/jvms.17-0138. [Epub ahead of print]

Anaplastic large T cell lymphoma in three black-tailed prairie dogs (Cynomys ludovicianus).

Matsumoto I1, Chambers JK1, Miwa Y2, Nakayama H1, Uchida K1.

Author information:

1Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo.2Miwa Exotic Animal Hospital.

Abstract

Anaplastic large T cell lymphoma (ALTCL) is rarely reported in domestic animals. Accordingly, the histopathological and immunohistochemical characteristics of ALTCL have not been well established in prairie dogs. The present report documents three cases in which prairie dogs were diagnosed with ALTCL arising in the subcutaneous tissue, oral mucosa or the mesenteric lymph nodes. Of the three cases, one was available for necropsy and the others were biopsy cases. Microscopically, moderate to large, pleomorphic neoplastic lymphocytes with ovoid to polygonal, bizarre-shaped nuclei, abundant cytoplasm and eosinophilic granules were seen in all cases. Immunohistochemical staining revealed membranous or cytoplasmic CD3 expression of the neoplastic lymphocytes. The neoplastic cells often had granzyme B-positive cytoplasmic granules. One of the prairie dogs with nodal ALTCL suffered systemic dissemination of the tumor and died suddenly. In the two biopsy cases, one animal died on the day of the biopsy examination and the other died six weeks after chemotherapy. ALTCL in prairie dogs displays a cytotoxic T cell phenotype and presumably carries a poor prognosis regardless of the anatomical type.

Free Article

PMID: 28458276
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Pharmacokinetic Profiles of Meloxicam and Sustained-release Buprenorphine in Prairie Dogs (Cynomys ludovicianus).

February 26, 2017 by PDP

D Cary Nicole L Lukovsky-Akhsanov Nadia F Gallardo-Romero Cassandra M Tansey Sharon D Ostergaard Willie D Taylor Jr Clint N Morgan Nathaniel Powell George W Lathrop And Christina L Hutson C.

Abstract

In this study, we evaluated the pharmacokinetic profiles of meloxicam and sustained-release (SR) buprenorphine in prairiedogs. The 4 treatment groups were: low-dose meloxicam (0.2 mg/kg SC), high-dose meloxicam (4 mg/kg SC), low-dosebuprenorphine SR (0.9 mg/kg SC), and high-dose buprenorphine SR (1.2 mg/kg SC). The highest plasma concentrationsoccurred within 4 h of administration for both meloxicam treatment groups. The therapeutic range of meloxicam in prairiedogs is currently unknown. However, as compared with the therapeutic range documented in other species (0.39 – 0.91 μg/mL),the mean plasma concentration of meloxicam fell below the minimal therapeutic range prior to 24 h in the low-dose groupbut remained above therapeutic levels for more than 72 h in the high-dose group. These findings suggest that the currentmeloxicam dosing guidelines may be subtherapeutic for prairie dogs. The highest mean plasma concentration for buprenorphineSR occurred at the 24-h time point (0.0098 μg/mL) in the low-dose group and at the 8-h time point (0.015 μg/mL) forthe high-dose group. Both dosages of buprenorphine SR maintained likely plasma therapeutic levels (0.001 μg/mL, basedon previous rodent studies) beyond 72 h. Given the small scale of the study and sample size, statistical analysis was not performed. The only adverse reactions in this study were mild erythematous reactions at injection sites for buprenorphine SR.

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Survey shows larger prairie dog habitat than expected

February 21, 2017 by PDP

The article does not address the fact that prairie dogs have declined by up to 98% in population and range over the past 120 years thanks to the reasons stated:  The animals have faced declining numbers due to plague, loss of habitat (ranching, farming, urban development), and other issues.

The Denver Post reports a recent federal survey conducted by Colorado Parks and Wildlife biologists shows the animals have two times more habitat than expected at 500,000 acres.

These rodents help sustain endangered black-footed ferrets and more than 100 other species on the Great Plains.

Environmentalists, developers and the state tend to clash when it comes to prairie dogs.

The animals have faced declining numbers due to plague, urban development, and other issues.

Tina Jackson of Colorado Parks and Wildlife says a listing of a species like this would have a huge impact on landowners and restrict activities on their property.

She said a lack of adequate space for prairie dogs would trigger ecological impacts.

Read More:  Population

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Don’t try to boss around a prairie dog

February 18, 2017 by PDP

Word to the wise: don’t tell Ray Durkee what he can or can’t do. You might end up harboring an exotic rodent.

The provenance of perky little Aime, pure prairie dog, named after the 1973 Pure Prairie League hit, is rooted in defiance. Here’s how it went down. Durkee, a West Ashley hair stylist and animal lover, had been browsing the Craigslist pet section when he happened upon an ad for prairie dogs.

Read More:  Boss

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Prairie dog problems grow on grassland Some Campbell County commissioners aren’t sure US Forest Service has the answer

January 7, 2017 by PDP

If Campbell County Commissioners are united on anything, it is their animosity for prairie dogs and the federal agencies bound to protect them.  Read more at:  Campbell

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Do prairie dogs benefit cattle grazing?

January 4, 2017 by PDP

Ranchers have known prairie dogs can reduce rangeland forage by as much as half, but prairie dogs may significantly increase the quality of forage that regrows, according to research by a University of Wyoming master’s degree student.

Read More at:  Forage

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Conservation, singles in kamloops, News Tagged: behavior, Conservation, ecology, keystone species

Prairie dogs are a nuisance for most farmers and ranchers

December 29, 2016 by PDP

This article is obviously biased against prairie dogs, but does provide an insight into the mindset of farmers and ranchers.  There are numerous studies documenting that prairie dogs do not compete with cattle for forage as there are numerous studies documenting the opposite.  It is just a matter of who performed the study.  I think the answer to this is that prairie dogs become an issue for farmers and ranchers AFTER farmers and ranchers have turned PRAIRIE into farms and ranches.  Read the article at:Farms and Ranches

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Conservation, singles in kamloops, News, Wildlife Tagged: behavior, colonies, Conservation, ecology, Endangered Species Act, keystone species

New Article on Prairie Dog Habitat

February 9, 2015 by PDP

untitledA new article by Rebecca Hopson, Paul Meiman, and Graeme Shannon was just published that looks at the role that prairie dogs play in the composition of urban and exurban rangelands. From the article’s abstract:

Rapid human population growth and habitat modification in the western United States has led to the formation of urban and exurban rangelands. Many of these rangelands are also home to populations of black-tailed prairie dogs (Cynomys ludovicianus). Our study aimed to compare the vegetation composition of an urban and exurban rangeland, and explore the role that prairie dogs play in these systems. The percent absolute canopy cover of graminoids (grasses and grass-likes), forbs, shrubs, litter, and bare ground were estimated at sampling areas located on and off prairie dog colonies at an urban and an exurban site. Herbaceous forage quality and quantity were determined on plant material collected from exclosure cages located on the colony during the entire growing season, while a relative estimate of prairie dog density was calculated using maximum counts. The exurban site had more litter and plant cover and less bare ground than the urban site. Graminoids were the dominant vegetation at the exurban plots. In contrast, mostly introduced forbs were found on the urban prairie dog colony. However, the forage quality and quantity tests demonstrated no difference between the two colonies. The relative prairie dog density was greater at the urban colony, which has the potential to drive greater vegetation utilization and reduced cover. Exurban rangeland showed lower levels of impact and retained all of the plant functional groups both on- and off-colony. These results suggest that activities of prairie dogs might further exacerbate the impacts of humans in fragmented urban rangeland habitats. Greater understanding of the drivers of these impacts and the spatial scales at which they occur are likely to prove valuable in the management and conservation of rangelands in and around urban areas.

Hopson et al. (2015), Rangeland dynamics: investigating vegetation composition and structure of urban and exurban prairie dog habitat. PeerJ 3:e736; DOI 10.7717/peerj.736

Download the article here.

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Conservation, singles in kamloops Tagged: black-tailed prairie dogs, colonies, Conservation

Report from the Burrow: Forecast of the Prairie Dog 2015

February 9, 2015 by PDP

untitledWildEarth Guardians just published Report from the Burrow: Forecast of the Prairie Dog 2015, by Taylor Jones. WildEarth Guardians releases a new report on the state of the prairie dog each year on Groundhog Day in order to let the public know how this important, and embattled, species is doing, and how well the state and federal agencies who manage and protect the prairie dog are doing their jobs.

To download this year’s report, click here.

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Dynamics of Reintroduced Gunnison’s Prairie Dogs

May 5, 2014 by PDP

ATT00443-page-001We just found this great article from the April 2014 issue of Journal of Wildlife Management called “Dynamics of Reintroduced Gunnison’s Prairie Dogs” which is of interest to our followers. Enjoy!

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Prairie Dogs FAQ

May 2, 2013 by PDP


750px-Prairiehondjes1Prairie dogs are burrowing rodents who live on the plains of North and Central America. They were first documented by Lewis and Clark in their 1804 journals from their journey across the United States. Lewis recognized the similarity between prairie dogs and squirrels (both rodents) and called it the barking squirrel.

Prairie dogs belong to the order Rodentia, the family Sciuridae (along with squirrels and chipmunks), and the genus Cynomys (which means “mouse dog”).

Within that genus are a number of species, including the Gunnison’s prairie dog (Cynomys gunnisoni), the white-tailed prairie dog (Cynomys leucurus), the black-tailed prairie dog (Cynomys ludovicianus), the Mexican prairie dog (Cynomys mexicanus) and the Utah prairie dog (Cynomys parvidens).

Gunnison’s Prairie Dogs live in Utah, Colorado, New Mexico and Arizona. Gunnison’s prairie dogs hibernate from November through March. They are yellow-tan in color, slightly paler than other prairie dog species, and have a short white-tipped tail.

In early 2008, the U.S. Fish and Wildlife Service determined that populations of the Gunnison’s prairie dog located in central and south-central Colorado and north-central New Mexico are warranted for protection under the Endangered Species Act, but they could not be listed as endangered because they were deemed a lower priority than other species.

Today, Gunnison’s prairie dogs have no form of federal protection whatsoever. The only exception to this is a protected colony living in Petrified Forest National Park.

DO PRAIRIE DOGS DRINK WATER?

Not usually, but they will. In the wild, they get enough moisture from the native grasses and weeds that they normally eat. In Albuquerque during a drought, they will eat cactus to receive their needed moisture and to prevent starvation. Supplemental water is needed in barren areas and during drought conditions.

IS IT OK TO FEED THEM?

If they have native grasses and weeds (even goathead greens) they don’t need to be fed. However, if their area is barren of foods native to their diet it is ok to feed them. Grass cuttings and alfalfa are the closest foods to their natural diet. Sweets are not natural for them but they love sunflower seeds, corn on the cob, lettuce, peaches, strawberries, watermelon and apples. They don’t like broccoli, zucchini and potatoes.

Picture 449WHY DO THEY NEED POPULATION CONTROL AND WHERE DO YOU TAKE THEM?

“City” prairie dogs are trapped in small areas and have no predators other than man and automobiles to maintain their population. Eventually they reach maximum population and must be thinned out on parkland in Albuquerque. They are relocated by our volunteers to a refuge south of the city. The ideal time is in June, July or August although they can be relocated in April before the babies are born.

DON’T THEY CARRY THE PLAGUE?

Plague is not carried by prairie dogs but by fleas that can infect all mammals. If a prairie dog is infected by plague carrying fleas, it, and the whole colony, will die. According to the Environmental Health Department, they are not carriers of the Hanta Virus. If prairie dogs are “frisky”, they are healthy.

CAN THEY TRANSMIT RABIES?

While all mammals are believed to be susceptible to rabies, there have been no recorded cases of prairie dogs transmitting rabies to humans. Most likely the animal is killed in the initial attack by a rabid animal, or dies shortly thereafter, before it can develop rabies. Never the less any rabid animal is potentially capable of rabies virus transmission. If the prairie dogs appear to be “frisky” they are most likely healthy and free of disease. Regardless of their condition, prairie dogs, like other wild animals, should not be handled.

WHAT KIND OF PRAIRIE DOGS LIVE IN ALBUQUERQUE?

Gunnisons or white-tailed which are one of five species of ground squirrels. The Black-tailed prairie dogs are no longer found in the Albuquerque area.

DO PRAIRIE DOGS HIBERNATE?

The Gunnison prairie dogs in Albuquerque do … Usually between November and March. Black-tailed prairie dogs do not.

HOW OFTEN DO PRAIRIE DOGS HAVE BABIES?

The usual litter is 3 to 5 pups once a year in May. The babies come above ground in June and begin to eat grasses and weeds instead of nursing. Only about 50% will survive more than 6 months.

Find out more about them by visiting some of our fact sheets here and here and here!

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Prairie Dog Classification

September 11, 2010 by PDP


ORDER RODENTIA

Suborder Sciuromorpha

FAMILY SCIURIDAE (Squirrels, chipmunks, marmots and prairie dogs)

Subfamily Sciurinae

Genus Cynomys

Gunnison’s Prairie Dog, Cynomys gunnisoni

White-tailed Prairie Dog, Cynomys leucurus

Black-tailed Prairie Dog, Cynomys ludovicianus

Mexican Prairie Dog, Cynomys mexicanus

Utah Prairie Dog, Cynomys parvidens

About 35 other genera in subfamily

The White-tailed Prairie Dog was described by Ludvig/Louis, and was named after the 1805 Lewis and Clark Expedition where prairie dogs were first identified for scientific study.

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Gunnison’s Prairie Dogs

September 11, 2010 by PDP


Description: Yellowish buff mixed with black above, slightly paler below. Short, white-tipped tail. Terminal half of tail grayish white in center. 12-14″ in height, weighing 23-42 ounces. Lives 3-5 years in the wild, longer in captivity.

Similar Species: White-tailed and Utah prairie dogs have white in center of tail rather than grayish. Black-tailed Prairie Dog’s tail has black tip.

Breeding: 1 litter per year of 1–8 young, born in early May; gestation 27–33 days, pups emerge mid June.

Habitat: Short grass prairies in high mountain valleys and plateaus of southern Rocky Mountains at elevations of 6,000–12,000’ (1,800–3,600 m). Habitat is much more variable topographically and vegetationally than that of the Black-tailed Prairie Dog, which occurs at lower elevations.

Range: Southeastern Utah, south and central Colorado, northeast and central Arizona, and northwest New Mexico.

Discussion: The Gunnison’s Prairie Dog, like the rest of its kin, is active only when the sun is up, and is most energetic near dawn and dusk. It is constantly vigilant while aboveground, often sitting upright on its hind feet while it pursues its main activities: mainly feeding, but also grooming and playing. This animal generally is seen from April to October. It hibernates (torpor) in winter, living on stored body fat. It usually emerges in April, though they will emerge earlier if the winter is mild. Gunnison’s Prairie Dog feeds on green vegetation, particularly grasses, but also forbs, sedges, and shrubs, as well as a few insects. Its colonies are generally smaller and less closely knit than those of other prairie dogs, resembling ground squirrel aggregations, with fewer than 50 to 100 individuals. The animals in the colony cannot always see one another because their habitat is in such varied and patchy terrain, which is caused in part by human activities. On flat ground and where this prairie dog is protected colonies are much larger and more extensive. This species’ burrow systems can be up to 80 feet long and 16 feet deep in well-established colonies. Burrows can have food storage, flood, nesting, communal and excrement chambers. Territoriality is not well developed in Gunnison’s Prairie Dog, although old males may defend small areas outside their burrows. Mother-young relationships form the basic social unit. Newborns remain in the burrow about three weeks before emerging and are weaned about three weeks later. The female sits almost straight up on her haunches to nurse her young, who suckle either pectoral or inguinal (hind leg) nipples. Gunnison’s alarm call, distinctive among prairie dogs, is important to the survival and structure of the community. It is a series of high-pitched barks of one or two distinct syllables, with the second syllable lower and more guttural. The call may be repeated frequently and may continue for as long as half an hour. It increases in intensity as danger escalates, and ends in chatter as the animal enters its burrow. Predators include American Badgers, Coyotes, weasels, and raptors. Plague (Yersina pestis), carried by fleas, can decimate populations of this species. However, humans, through their extermination programs, are the chief enemy of Gunnison’s Prairie Dog.

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Prairie Dog Facts

September 11, 2010 by PDP

  • Two of the five species of prairie dogs are protected under The Endangered Species Act. Black-tailed prairie dogs have been granted a “Warranted but Precluded” Threatened Species listing, which means that biologically they deserve protection but the government does not have the resources required for enforcement at this time.
  • Overall, prairie dogs inhabit less than 1% of their former range. New Mexico has the smallest remaining acreage of prairie dogs across their historical range. Best estimates on Gunnison’s populations are that they inhabit about 2% of their former region. This means overall numbers are dangerously low since their range is much smaller than that of the Black-tailed Prairie Dog. A surprisingly large percentage of remaining prairie dog colonies live in urban environments.
  • Black Footed FerretsPrairie dogs are known as a “keystone species.” Over 160 vertebrates alone are associated with large prairie dog colonies and over 80 on “urban” colonies. Possibly the world’s most endangered animal, the Black-footed Ferret, cannot live without prairie dogs. Some other federally protected species are nearly as dependent including the Ferruginous Hawk, the Burrowing Owl, the Swift Fox and the Mountain Plover. Biologists have termed them “perhaps the most important mammal on earth.”

Prairie dogs are important to their environment in three ways:

  • They are the primary prey on rangelands and their colonies also provide a greater density of other prey species.
  • They provide homes or shelters for dozens of species.
  • Their positive effect on soil and vegetation conditions.

 

  • Prairie dogs are annual breeders. About half of the females over two years of age will give birth to 3-5 pups in the spring. The overwhelming majority will not live six months.
  • Prairie dogs are highly social and possess the most complex language of any animal ever studied. They display different calls for raptors, coyotes, humans and even humans carrying guns. They have numerous other calls totaling over fifty distinct “words.” Kissing, hugging and grooming are regular pastimes. Burrows are much like homes possessing front and back doors, toilets, listening posts, sleeping quarters and storage rooms.
  • Poisoning prairie dogs is unacceptable. The primary poison used induces a slow, painful death that may take up to 72 hours. Other residents of their burrows suffer the same fate. Poisoning for population control is counter-productive. A mature colony left alone tends to expand about 2% per year. A poisoned colony expands at the rate of about 70% per year. Left to their own devices, prairie dogs experience their own natural population declines. They never undergo these decreases if we are constantly inducing our own, unnatural removal on their colonies.
  • Shooting definitely has a significant impact on prairie dog populations. One heavily shot area was reduced by 10,000 acres in just a couple of years. Shooting promotes disease, discourages other species from hunting or living in the colony, and is not “hunting.”

For more facts, visit 101 Questions and Answers about Prairie Dogs and Environmental Change and the Prairie Dog

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About Prairie Dogs

September 11, 2010 by PDP

My goal in writing this article is to help educate people about prairie dogs, and to provide people with objective information backed by valid scientific research. As many of us in New Mexico live among prairie dogs, I feel it is especially critical that people are well educated about these native animals.

What are prairie dogs?

Prairie dogs are large, colonial, ground-nesting squirrels. They live in large communities (colonies) in grassland habitats. They are highly social animals, and have evolved a complex language system. Prairie dogs eat grasses and weeds, and they will clip grasses to enable them to detect predators. They live in family units called coteries that consist of usually one male and several females. Females often remain in the same burrow system during their lifetime and juvenile males leave the burrow during their first year. Prairie dogs usually live for about 5 years in the wild.

What species do we have in New Mexico?

Both black-tailed prairie dogs and Gunnison’s prairie dogs occur within New Mexico.

Black-tailed prairie dogs are the most social of all the prairie dog species, and occur in the Great Plains region. They used to be common in the eastern and southwestern part of New Mexico, but have been eliminated from most of their native habitat within the state.

Gunnison’s prairie dogs occur throughout the four corners region and are found in Santa Fe, Albuquerque, Socorro, Gallup, and Grants. Gunnison’s prairie dogs also have declined significantly, and have been petitioned to be listed under the endangered species list.

Prairie dog reproduction

Prairie dogs are not prolific breeders. They only have one litter per year, consisting of about four young, of which only two usually survive.

The ecological role of prairie dogs

Prairie dogs were once among the most numerous and widespread herbivores in North American grasslands. Human activities such as habitat destruction and poisoning efforts have significantly reduced prairie dog populations. Three of the five species are federally listed as threatened or endangered. The most widespread species, the black-tailed prairie dog, now occupies less than 2% of its historical range. Scientists studying prairie dogs have estimated that at least 163 animal species are associated with prairie dog colonies, indicating that the prairie dog is a “keystone” (i.e., critically important) species in these ecosystems. Prairie dogs create ecological disturbances resulting in a diverse landscape that provides a variety of habitats for many plant and animal species, including black-footed ferrets, rabbits, squirrels, lizards, snakes, burrowing owls, and invertebrates. Prairie dogs also affect grassland plant species composition and vegetation structure and enhance soil and plant nutritional quality, which benefits antelope, bison, and cattle.

Prairie dog eradication has caused significant biological degradation and decline in biological diversity on grasslands in North America. Research has found that prairie dogs inhibit woody plants from invading grasslands, and has indicated that the elimination of these rodents has played a significant role in desertification of grasslands. In addition, removal of prairie dogs causes secondary extinctions of other species, altering the entire food web associated with prairie dogs. For example, the black-footed ferret, burrowing owl, mountain plover, and ferruginous hawk are among the most endangered prairie dog-dependent species. Despite their importance, people often want to exterminate prairie dogs because of misconceptions about proliferation, children being bitten, destruction of landscaped areas, plague, competition for forage with livestock, and animals breaking their legs in the burrows.

Are they dangerous to humans?

Prairie dogs are not a threat to children. They are timid animals, and when approached by humans, prairie dogs quickly scurry into the safety of their burrows. People should never hand feed prairie dogs or try to grab them. Hand feeding may cause the animals to be accustomed to humans, and result in bites when humans get too close.

Prairie dogs and hantavirus

Prairie dogs are not known to contract or transmit hantaviruses. Worldwide, hantaviruses are associated with deer mice and other rodents in the family Muridae, which are distant relatives of prairie dogs (Squirrels, in the family Sciuridae).

Prairie dogs and plague

Prairie dogs do not carry plague. Plague is a non-native disease, introduced to North America from Europe by humans. Prairie dogs have not evolved immunity to plague, and therefore, it kills 99% of the individuals in an infected colony. Plague has been a major contributor to causing the decline in prairie dog populations.

Fleas carry the plague. These fleas can be found on many wild animals, and are not limited to prairie dogs. Killing prairie dogs just causes fleas to search for another host, and is not recommended by the Center for Disease Control (CDC) as an effective method of plague control. The key to preventing plague is to control fleas, not prairie dogs. Avoiding contact with dead wild animals and dusting pets and rodent burrows with flea powder can successfully prevent plague. Plague is also easily overcome with antibiotics when detected early, so people should educate themselves about the symptoms of plague. A colony of active prairie dogs is indicative of healthy, plague-free prairie dogs, and should not cause concern.

What if they are damaging the landscape in your yard?

If prairie dogs are causing damage to landscaped areas, you can use visual barriers such as vegetation or low walls and additional below ground barriers to contain the animals. Prairie dogs are highly discouraged by tall vegetation, so plant native shrubs and do not mow native grasses. Xeriscaping the area will also help discourage prairie dogs, and conserve water.

How to get rid of prairie dogs

Rat poison should not be used to kill prairie dogs because it causes secondary poisoning of dogs, cats, and other animals, and is dangerous to children. The only legal method for killing prairie dogs involves the use of poisonous gas by licensed professionals (in most states), which is costly. The poisonous gases used are inhumane, causing slow and painful deaths, and can take up to 72 hours to induce death in an animal. During which time the animals suffer from burning of the mucus membranes to paralysis.

The best recommendation is to learn to live with these native animals, and, if for some reason, prairie dogs must be removed, you can contact professional relocators in the state that can be referred by People for Native Ecosystems (PNE) (505) 982-0496 or the City of Santa Fe Permit Development and Review (505) 955-6480. Prairie Dog Pals of Albuquerque also conducts some relocations, though mostly on public lands.

Shooting prairie dogs

Shooting is often used as a means of reducing the size of a prairie dog colony. Varmint hunters gather together in many states where prairie dogs occur to shoot them. They do not eat the prairie dogs; rather, they shoot them with rifles for target practice fun. In our national grasslands, bullet shells and literally exploded prairie dogs can be found littering the colonies. It is important to keep in mind that that these are highly social animals that are greatly affected by the shooting of their family members. Prairie dogs have become threatened species and are not prolific breeders, so sport shooting should be banned.

Do prairie dogs compete with cattle for forage?

Recent research has found that prairie dogs compete little for forage with cattle (~5%). In fact, by clipping grasses, prairie dogs eliminate old plant tissue and stimulate new plant growth. New plant growth contains more protein, so the nutritional quality of the vegetation on prairie dog colonies is greater than off colonies, despite the lower quantity of vegetation. Cattle have been found to gain similar to more weight when foraging on prairie dog colonies than off. Keep in mind that prairie dogs and bison have coexisted for millions of years, and bison and other ungulates consistently prefer to graze on prairie dog colonies.

What about falling into prairie dog holes?

The myth that cattle fall into prairie dog holes apparently began in the late 1800’s. During this time, cattle were over-stocked on rangeland here in the Southwest. Cattle were overgrazing the lands, and combined with a 25 year drought period at the end of the century, many of the grasslands became desertified. There was little forage for cattle to eat and many became sick and lethargic, causing some of the cattle to apparently fall into the burrows. A healthy cow slowly grazes with its head down and does not fall into burrows. Remember, bison evolved along with prairie dogs.

Some people like to ride their horses in the mountains but feel they can’t because prairie dog burrows are present. My advice is not to run your horse on a prairie dog colony, and find an alternative place to ride. These animals no longer occur in large colonies due to their population declines, and therefore, it should not be difficult to find an alternative place to ride. If we live in the mountains or are recreationally enjoying them it is important to remember that wildlife are present in these areas and we need to learn how to live with them, not eliminate them because they are in our way.

Prairie dogs as pets

Prairie dogs express social behavior that humans can relate to, but they do not make good pets. Because they are highly social animals, they should never be kept in isolation. Prairie dogs require considerable attention, and also are highly active with lots of energy and desire to chew and dig. They often will chew furniture when let out of their cage and will dig at rugs, tearing them up. In addition, prairie dogs have a breeding season each year, during which their hormones change and they can become aggressive. During this time even friendly prairie dogs can bite. Moreover, most prairie dogs sold as pets are taken directly from the wild. They have not been bred in captivity for generations, unlike most animals that we have for pets. Keep in mind that dogs have been domesticated for 10,000 years. Because prairie dogs have not been domesticated, they exhibit wild tendencies and may not always be friendly to the people they live with.

Wild prairie dogs sold for pets are often collected from areas where landowners want to reduce or eliminate the prairie dog population on their land. These prairie dogs have been acquired through unregulated harvest to provide profit for the pet trade. Some of the methods used to obtain prairie dogs for pets, such as removing prairie dogs with a “sucker truck,” a truck with a vacuum hose, are inhumane. The pet trade contributes to the decline of the species. If prairie dogs must be removed or controlled in an area, the animals should be humanely relocated to appropriate areas where their populations are desired.

Current efforts to protect prairie dogs within the state

Currently there are no efforts established to protect the Gunnison’s prairie dogs. However, both the city of Albuquerque and of Santa Fe do not allow the poisoning of this species within the city limits. The US Fish and Wildlife Service (USFWS) has determined that black-tailed prairie dogs have declined significantly throughout their range and that their status as a threatened species is “warranted but precluded.” Meaning that there are significant threats affecting the long-term viability of the black-tailed prairie dog, but there are insufficient resources to protect this species. The limited funds available to the USFWS for threatened and endangered species is currently being used for species that are of greater concern.

Game and fish departments from most states in which prairie dogs occur have established black-tailed prairie dog working groups. These working groups are designed to develop a management plan to reduce the decline of prairie dogs so that listing will not be necessary.

Why are they endangered? I see so many of them!

Often people think that because they see “lots” of prairie dogs that they couldn’t be declining. Keep in mind that they once occurred in huge numbers (~5 billion) throughout most of the grasslands in the central United States. They have declined greatly relative to their former abundance. There are many large threats affecting their populations: continued poisoning and shooting, habitat loss through development and desertification, and plague. In addition, many animal species that are dependent on the prairie dog require large colonies in order to support them. Most of the prairie dog colonies have become fragmented and isolated from one another, which lowers the long-term viability of maintaining the population and the other species dependent on them. The plight of the prairie dog is analogous to the passenger pigeon, once one of the most abundant and common species that has now become extinct due to human persecution.

How you can help

People are greatly needed to help in education, legislation, and relocation efforts. Contact a local wildlife organization such as Prairie Dog Pals or People for Native Ecosystems (contact info above) if you have an interest in helping the prairie dogs. You can also find more information about prairie dogs on the web at http://www.prairiedogs.org  and http://www.gprc.org  .

Ana D. Davidson, Ph.D.

Department of Biology

The University of New Mexico

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Prairie Dog Talking Points

September 11, 2010 by PDP

  • Prairie dogs are a keystone species with up to 205 associated vertebrates (9 considered dependent) living with them, using their burrows, or predating upon them
  • There are 5 species of prairie dogs. The ones in Albuquerque are Gunnison’s, the others include Mexican, Utah, white and black tailed.
  • Gunnison’s prairie dogs hibernate during the winter months.
  • Over the last 100 years prairie dogs have been reduced to 1% of their former range and 2% of their population.
  • Some of the species are listed under the Endangered Species Act. Others are being considered for listing.
  • New Mexico has the smallest remaining acreage of prairie dogs.
  • Prairie dogs are territorial and will remain in or near their ancestral habitat if at all possible. The prairie dogs you see here in Albuquerque are the remnants of vast prairie dog towns that existed for hundreds of years.
  • Prairie dogs live an average of 3-5 years in the wild.
  • Prairie dogs are annual breeders. 50% of females over 2 years of age will breed and produce an average of 4 pups.
  • Pups are usually born in early May and will emerge from their burrows after about thirty days.
  • Prairie dogs have the most complex language of any animal ever studied.
  • They have over 200 words and can form sentences identifying intruders by color, size and type of risk.
  • Burrows are complex with a different area for each function of life. There are living chambers, sleeping and nesting rooms, a food storage area,
  • toilet rooms, and flood chambers. The burrows themselves generally include a second entrance or escape way, air chambers, and listening posts in addition to the main entrance.
  • As with humans, prairie dogs are the victims of plague. Virus carrying fleas are brought into the colony by wild animals or off leash cats or dogs.
  • As they have no immunity to the plague they will die within days.
  • Poisoning prairie dogs in both cruel and ineffective. The poison causes a slow agonizing death that may take up to three days.
  • A mature colony tends to expand at approximately 2% annually. A poisoned colony can expand at an annual rate of 70%. Additionally the poison can pose a danger to humans, cats, dogs, and other animals in the area.

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Gunnison’s Prairie Dogs Facts

September 11, 2010 by PDP

Populations: The Ultimate Underdog

800px-Cynomys_ludovicianus5Gunnison’s Prairie Dogs are a White-tailed subspecies, which inhabits the four corners region. Once ubiquitous, current estimates place their populations at about 2 – 5% of their former range.

Two of the five species of prairie dogs are protected under the Endangered Species Act. There may be fewer Utah Prairie Dogs than Siberian Tigers. Black-tailed Prairie Dogs, the most numerous due their large range, are considered a Candidate for Threatened Listing. They meet all criteria for listing, but the Fish and Wildlife Service does not yet have the resources to enforce the listing, so they were placed on the Candidate List in 2000. They are on about 1% of their former range.

tipping pointEcological Importance: A ‘keystone species.’

Prairie dogs are a ‘keystone species,’ or most important element, of their environment.

Up to 160 other species benefit from their presence.

They enrich their environment in three ways:

  1. As the primary prey on rangelands.
  2. They build homes or shelter for many species.
  3. They alter vegetation and soil to promote optimum grazing conditions.

The Black-footed Ferret is the most endangered mammal on our continent and cannot live without prairie dogs under any circumstances.

The Ferruginous Hawk, Swift Fox, Mountain Plover, and Burrowing Owl, are considered  for or federally protected species that are considered dependent on prairie dogs. Several other species are considered dependent on prairie dogs. Several other species are considered dependent.

It’s a Dog’s Life: a Brief Description of the Prairie Dogs, Themselves

Prairie dogs possess, perhaps, the most complex language of any animal ever studied. Even more so than primates. They have over fifty primary ‘words’ and can communicate in sentences, distinguish color, speed, and level of threat through language.

Prairie dogs live in family units called ‘coteries’. They often ‘kiss’ in a familial identification. The animals commonly seen poised on their hindquarters are sentries, ever vigilant on the lookout for danger to themselves and families.

Prairie dogs are annual breeders. Fifty percent of females over two years of age will give birth to about 4 pups in the spring. There is tremendous juvenile mortality.

Prairie dogs live to be about five years old in the wild.

Burrows are complex, with separate ‘rooms’ for each function of life. Toilet chambers, sleeping quarters and storage typify a home burrow. Often, listening posts are created near the entrance for added protection. Some burrows have several entrances.

Gunnison’s and White-tailed Prairie Dogs hibernate, or go into torpor, as it is called, from about November through February. Black-tailed Prairie Dogs do not hibernate.

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Hantavirus

September 10, 2010 by PDP


Prairie dogs are not known to contract or transmit Hantavirus. It is only associated with deer mice (Peromyscus spp.), and some closely related species of rodents in the family Muridae. Prairie dogs are in an entirely different family of rodents, Sciuridae, and there are no known associations of hantavirus with prairie dogs and that association is not considered likely given that these species are not closely related.

Hantavirus is in our environment all the time, and we are probably exposed to minute amounts on a regular basis. It takes high concentrations of the virus in the air for someone to catch it. The primary time you should be concerned about Hantavirus is when you are cleaning (stirring up dust) in a closed-confined space where there is minimal air space, where small mouse droppings are present. The classic situation is when someone is cleaning an old closet or garage with a broom and the place has lots of droppings from deer mice. The best thing to do in that case is open the doors, wet the surface, and wear a mask. A full respiratory mask is required for protection from Hantavirus. Most mammalogists are not very concerned about contracting Hantavirus when trapping rodents because they are outdoors, exposed to the open air.

For more information visit this site.

CDC Hanatvirus

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Tularemia

September 10, 2010 by PDP


What is Tularemia?

Tularemia (also known as rabbit fever or deerfly fever) is an infectious disease in ticks and rabbits that is caused by a bacterium (Francisella tularensis). The disease was first described in Japan in 1837. Its name relates to the description in 1911 of a plague-like in ground squirrels in Tulare county, California (hence the name tularemia) and the subsequent work done by Dr. Edward Francis.

Tularemia occurs throughout North America and in many parts of Europe and Asia. Francisella tularensis is found worldwide in over a hundred species of wild animals, birds and insects. Some examples of animals, other than rabbits, that carry tularemia are meadow mice, ground hogs (woodchucks), ground squirrels, tree squirrels, beavers, coyotes, muskrats, opossums, sheep, and various game birds.

There are two common ways that humans can contract tularemia:

  • From the bite of an infected tick, deerfly (Chrysops discalis), or mosquito. When transmitted to humans by insects, exposed body surfaces are bitten, and the on set of pain and fever is sudden.
  • When broken skin (cuts, abrasions) comes into direct contact with an infected rabbit carcass (namely rabbit species of the genus Sylvilagus which are the cottontails).

Less common means of spreading the disease are drinking contaminated water, inhaling dust from contaminated soil, or handling contaminated pelts or paws of animals. Human-to-human transmission of tularemia is uncommon.

What are the clinical features or symptoms of tularemia?

In humans, tularemia may appear in two forms depending on how a patient contracted the disease. The most common form is usually acquired through the bite of an infected tick (especially wood ticks and deer ticks) or from contact with infected rabbits. Patients will develop an ulcer at the site of infection and lymph glands become inflamed and swollen. Severe fever and flu-like symptoms may accompany the ulcer or lesion. Symptoms start to show within 1-14 days after contracting the disease, with 3-5 days being most common. The fever generally lasts for 3 to 6 weeks if no type of antibiotic therapy is used to combat the bacteria. Patients with the less common form of tularemia, which occurs mainly after inhalation of bacteria, typically experience sudden chills, fever, weight loss, abdominal pains, tiredness, and headaches. Patients with this form of tularemia may develop an unusual pneumonia that can be fatal.

Symptoms of the disease in a rabbit are a white spotted liver, swollen spleen, and an ulcerated or raw area about 1⁄4 inch in diameter which is where the animal was bitten by a tick or deer fly and thus infected.

How is tularemia transmitted to humans through wild game?

Reports of tularemia outbreaks indicate two primary modes of disease transmission. An increase in the number of reported cases in the eastern and midwestern United States during fall and winter coincides with hunting season when hunters are skinning rabbits. In the southwestern and western United States, the incidence of tularemia is highest during summer months due to tick bites.

The risk of contracting tularemia from rabbits is greatest when handling rabbits after the hunt during the cleaning process. Hunters skinning rabbits are advised to wear protective rubber gloves to reduce the risk of contracting the bacteria that cause tularemia when broken skin (cuts, scratches, openwounds, abrasions) comes into contact with an infected carcass or alive, infected rabbit.

Other than hunters, who else may be at risk for illness from tularemia?

Approximately 150-300 tularemia cases are reported in the United States annually, with a majority of those from Alaska, Arkansas, Illinois, Oklahoma, Missouri, Tennessee, Texas, Utah, and Virginia. The frequency of tularemia has dropped markedly over the last 50 years and there has been a shift from winter disease (usually from rabbits) to summer disease (more likely from ticks). The bacteria F. tularensis is a hazard to laboratory staff that work closely with rabbits. Matter of fact, nearly all cases reported each year are by people that receive the bacterial disease from a tick bite rather than from cleaning rabbits. Note: as few as 5-10 bacteria can result in disease. Others at risk may include timber industry personnel, outdoor enthusiasts, as well as those who work, play, or live in tick-infested regions during summer months.

As recently as 1984, 20 people from the Crow Creek and Lower Brule Indian reservations in west-central South Dakota were diagnosed with tularemia. Tularemia was spread through these two reservations by dog ticks (Dermacentor variabilis) that carried the bacteria.

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Prairie Dogs and Plague

September 10, 2010 by PDP


PRAIRIE DOGS DO NOT TRANSMIT DISEASE TO HUMANS!

In the wild, prairie dogs are the victims of only one disease, plague. Plague was introduced to the west by settlers near the turn of the century and, “…we gave it to the prairie dogs”(1). It was first discovered in New Mexico in 1938(2). This non-native disease is spread by fleas and is carried into prairie dog towns by other animals such as mice, coyotes, and domestic dogs and cats. All mammals are capable of contracting plague. Once the fleas are present in a prairie dog colony, the entire town will perish within days, and individuals live for only a few hours.

Thus, if the plague is present, there are no active prairie dogs within about one week’s time. Such cases suggest that dogs infected with these diseases should be checked and admitted to a veterinary clinic as soon as possible. To prevent the spread of the plague, infected dogs can be euthanized humanely and compassionately if treatment is not possible. For more info on euthanization, visit this article.

Proven cases of human plague contracted from prairie dogs are virtually non-existent. The Centers for Disease Control and the department of health continually reinforce this fact. The CDC’s official position on destroying Prairie Dogs to control plague is, ” We do not recommend routine destruction of prairie dog colonies”(3). One CDC report specifically on plague says, “Plague in Cynomys Gunnisoni (Gunnison’s Prairie Dog) is devastating. Mortality during a plague epizootic typically exceeds 99%. Although mortality is great and flea infection rates may reach tremendous levels, human cases resulting from prairie dog plague are relatively few….and result from direct contact with an infected animal…Opisocrostis spp, (the fleas), maybe reluctant to bite humans”(4).

Cases of people contracting plague from live prairie dogs are non-existent. People who have been known to contract plague from prairie dogs can be traced to handling the corpse of an infected animal (5).

Some states have no record of anyone ever contracting disease from prairie dogs. The chances of contracting plague from a live prairie dog are so infinitesimally slim, it is simply a non-issue. Fleas will only seek a new host if the original host is deceased. For this reason, The Colorado Department of Health states, ...poisoning of burrowing rodents should not be routinely employed because this could release fleas into the environment and cause an increased risk to humans and pets” (6). Poisoning causes fleas to leave prairie dogs and other rodents in their burrows. This is the only time when a human health risk becomes a factor. Common sense points to the fact that having dozens of corpses present in an area is not a healthy environment for human activity. In contrast, everyone who regularly works with prairie dogs is vitally healthy. The writers of this plan have handled thousands of prairie dogs and they are all alive and well today. Nobody who regularly works with prairie dogs has ever suffered health complications of any kind. Though nearly impossible, if plague did strike in our times, plague is not synonymous with death. The disease can be treated with modern antibiotics and recovery rate is high, recovery time fairly brief.

Existing prairie dog colonies in Albuquerque neither have plague or would infect humans. One value of ‘city dogs’ is that if there is a large plague outbreak in an ecologically significant colony, these healthy animals can be reintroduced to prevent the collapse of the ecosystem. Plague can be controlled or prevented by using proper flea powder in prairie dog burrows once or twice per year (7). This practice is common in New Mexico and is generally conducted by the Department of Health or Environmental Divisions.

May we take this opportunity to reinforce the fact that prairie dogs are not able to become infected by or transmit any other disease including rabies or hanta virus. Plague is just another, tremendous threat against the survival of prairie dogs and their ecosystem. Gunnison’s prairie dogs, the variety in Albuquerque, are down to about 2% of their historical range (8) and are under consideration for listing under the Endangered Species Act (9).

Find out more about the dynamics of a plague outbreak here.

Literature Cited

1. Coniff, Richard 1998. Citing Pape, John. Epidiologist for Co Dept. of Health. Quoted on Wildlife Adventures, “Underdogs, Prairie Dogs Under Attack” Turner Productions, TBS

2. Cully, Jack. 1986 Metapopulation Characteristics of Sylvatic Plague Among Gunnison’s Prairie Dogs In the Moreno Valley, NM.(Citing Webber, 1978) Museum for Southwestern Biology, Department of Biology, University of New Mexico, Albuquerque, NM.

Cully, Jack F., Williams, Elizabeth S. 2001.Interspecific Comparisons of Sylvatic Plague in Prairie Dogs. Journal of Mammalogy. 82: 894-905

3. Reply letter to Prairie Ecosystems regarding official position of the CDC on prairie dogs and plague. Kathleen Orloski, DVM, MS, Epidemic Intelligence Service Officer. April 26, 1995.

4.. Centers for Disease Control Morbidity and Mortality Weekly Report. “Human Plague”, April 8, 2004, Vol. 43, No 13.

5.. Rocky Mountain News Spotlight article, “Dogs of War” quoting John Pape, Infectious Disease Specialist for The Colorado Dept. of Health. May 4, 1998.

6. Colorado Department of Health brochure, “Facts About Plague”, 1993.

7. Department of Health regular practice for controlling fleas. Rocky Mountain Arsenal National Wildlife Refuge and Plains Conservation Center have had tremendous success in controlling the spread of plague to reintroduced prairie dogs through this technique.

8. Knowles, C. 2001. Status of the Gunnison’s prairie dog. FWS & NWF.

9. Forest Guardians. 2004. Petition to List the Gunnison’s Prairie Dog as Threatened or Endangered Throughout its Range. Feb 23, 2004. www.fguardians.org

Prepared by: Prairie Ecosystems

 

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Architecture of a burrow

May 1, 2010 by PDP

Architecture of an Artificial Burrow

 artificial burrow

The picture to the left illustrates one example of an artificial burrow.  PDP uses a slightly different design.  We use a 25-gallon, plastic nursery pot for what we call the nesting box (described in the illustration as the “initial burrow chamber or room”).  We attach a ten-foot long tube to the side of the upside-down nursery pot for an entrance/exit tunnel, as shown.  Our second tube, unlike the one in the picture, we install through the top of the nursery pot, extending down into it so that the end of the tube sits a few inches above the base.  We dig a hole in the ground roughly four feet deep, lay a piece of hardware cloth in the bottom, and then set on that the upside-down nursery pot with attached tubes.  The hardware cloth prevents the prairie dogs from digging out of the nesting box, while the tubes allow them to climb to the surface.  When we release the prairie dogs, we usually send them down the vertical tube; gravity encourages them to proceed to the bottom rather that stopping in the tube and causing a traffic-jam.

After inserting the prairie dogs into the artificial burrows, we place a containment cage (we call them cage caps) over each egress tube.  We continue to feed and monitor the prairie dogs for up to five days.  This gives them a chance to acclimate to their new surroundings.  Then we remove the cage caps and allow them to “escape” from the artificial burrows.  Able to come and go as they please, they continue to use the man-made burrows as a refuge from predators and for temporary shelter until they can construct their own burrows.

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Monkey Pox

September 10, 2009 by PDP

monkeygirlSadly, some misguided, misinformed, and malignant individual has been posting signs trying to connect prairie dogs and monkey pox.   Monkey pox, as it is aptly named, comes from African monkeys.   As prairie dogs and monkeys do not inhabit the same habitat, it is unlikely that a wild prairie dog could ever contract the disease under normal circumstances.

Monkey pox reached the United States in 2003, from infected Gambian rats being imported by a less than diligent exotic pet sales house.   The rats infected adjacent, captive prairie dogs, and the disease was transmitted to humans. The USDA stepped in and stopped the pet trade in prairie dogs, a blessing for the prairie dogs, as no longer could unscrupulous people take young from their families for sale.

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Restrictions on African Rodents and Prairie Dogs

September 8, 2008 by PDP

The Food and Drug Administration (FDA) is removing its regulation that established restrictions on the capture, transport, sale, barter, exchange, distribution, and release of African rodents, prairie dogs, and certain other animals. Read more about it on the FDA’s Federal Register here.

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Small Creature Speaks Out

April 2, 2003 by PDP

Hi.

My name is Myra and I am a prairie dog. I live in one of the isolated prairie dog villages in Albuquerque. For some reason, many members of your species seem to hate mine. I think it is probably because they don’t understand us.

We are not dangerous and we do not carry diseases. We simply live in little villages and mind our own business. Some people think we kill trees but that is not true. We do not feed on tree roots unless there is absolutely nothing else to eat. We find most of our food above ground.

Other little animals such as gophers will feed on the roots of trees and bushes. Other people think we carry the plague and can spread it to your species. This is also not true. When the fleas that carry the plague invade our villages, we die just as humans do. If our village is full of healthy, fun loving prairie dogs, then I can assure you that the fleas that carry the plague aren’t in our village.

Unlike some other small animals, we are not a prolific species. I may have four pups a year but generally only two will survive. We are lucky to be able to maintain a population if we are left alone.

For whatever reasons; fear, misunderstanding or just plain meanness, your species likes to persecute us. Recently some friends of mine who lived in a prairie dog village close to a church in northeast Albuquerque had their village covered by the church because the church officials were expanding their parking lot. One church official, when questioned, said he doesn’t give a “rat’s ass” about prairie dogs.

Doesn’t he understand that the same Being that created your species created us? Doesn’t he understand that all species can live in peace? Why does your species with your superior intelligence find it necessary to destroy other species?

Over at Kirtland Air Force Base, the military is gassing more of my friends. The gas that they use is very painful and very slow working. My friends will suffer in great pain for as long as 72 hours after being gassed, before they finally, mercifully, die. Other people like to shoot us with high-powered rifles so they can see us “explode” when the bullet rips us apart.
by Richard “Bugman” Fagerlund, Daily Lobo Columnist
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Recent News

2023 PDP General Meeting Minutes

March 12, 2023 By PDP

The annual meeting of Prairie Dog Pals was conducted on 4 February 2023 via zoom.  The link to  the meeting minutes follows:  Meeting Minutes

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