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Author Sundaresan, S.R.; Fischhoff, I.R.; Dushoff, J.; Rubenstein, D.I. doi  openurl
  Title Network metrics reveal differences in social organization between two fission-fusion species, Grevy's zebra and onager Type Journal Article
  Year 2007 Publication Oecologia Abbreviated Journal (up) Oecologia  
  Volume 151 Issue 1 Pages 140-149  
  Keywords Analysis of Variance; Animals; Behavior, Animal/*physiology; *Environment; Equidae/*physiology; Female; India; Kenya; Male; *Models, Theoretical; *Social Behavior; *Social Environment  
  Abstract For species in which group membership frequently changes, it has been a challenge to characterize variation in individual interactions and social structure. Quantifying this variation is necessary to test hypotheses about ecological determinants of social patterns and to make predictions about how group dynamics affect the development of cooperative relationships and transmission processes. Network models have recently become popular for analyzing individual contacts within a population context. We use network metrics to compare populations of Grevy's zebra (Equus grevyi) and onagers (Equus hemionus khur). These closely related equids, previously described as having the same social system, inhabit environments differing in the distribution of food, water, and predators. Grevy's zebra and onagers are one example of many sets of coarsely similar fission-fusion species and populations, observed elsewhere in other ungulates, primates, and cetaceans. Our analysis of the population association networks reveals contrasts consistent with their distinctive environments. Grevy's zebra individuals are more selective in their association choices. Grevy's zebra form stable cliques, while onager associations are more fluid. We find evidence that females associate assortatively by reproductive state in Grevy's zebra but not in onagers. The current approach demonstrates the utility of network metrics for identifying fine-grained variation among individuals and populations in association patterns. From our analysis, we can make testable predictions about behavioral mechanisms underlying social structure and its effects on transmission processes.  
  Address Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA. ssundare@princeton.edu  
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  Series Volume Series Issue Edition  
  ISSN 0029-8549 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:16964497 Approved no  
  Call Number Serial 1863  
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Author Ryder, O.A. url  openurl
  Title Przewalski's horse – putting the wild horse back in the wild Type Journal Article
  Year 1988 Publication Oryx Abbreviated Journal (up) Oryx  
  Volume 22 Issue Pages 154-157  
  Keywords Equidae genetics.  
  Abstract The Asian wild horse, or Przewalski's horse (Equus przewalskii), is believed to currently survive only in captivity. There are more than 660 individuals in over 70 zoological collections, and animals are available for reintroduction. The Przewalski's horse had been bred in captivity for 12 generations, and inbreeding has occurred. Genetic variability has been lost, and released animals will require acclimatization on or near release sites. In China, a program is under way for acclimatization, breeding, and release of wild horses, and plans are being made for a similar program in Mongolia. (LCA)  
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  Notes from Professor Hans Klingels Equine Reference List Approved yes  
  Call Number Serial 1537  
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Author Pritchard, J.C.; Lindberg, A.C.; Main, D.C.J.; Whay, H.R. doi  openurl
  Title Assessment of the welfare of working horses, mules and donkeys, using health and behaviour parameters Type Journal Article
  Year 2005 Publication Preventive Veterinary Medicine Abbreviated Journal (up) Prev Vet Med  
  Volume 69 Issue 3-4 Pages 265-283  
  Keywords *Animal Welfare; Animals; Behavior, Animal; Developing Countries; *Equidae; Female; Health; Male  
  Abstract Working animals provide an essential transport resource in developing countries worldwide. Many of these animals are owned by poor people and work in harsh environments, so their welfare is a cause for concern. A protocol was developed to assess the welfare of working horses, mules and donkeys in urban and peri-urban areas, using direct observation of health and behaviour parameters. In this study, 4903 animals used for draught, pack and ridden work in Afghanistan, Egypt, India, Jordan and Pakistan were assessed between December 2002 and April 2003. The data showed that donkeys were more likely than mules or horses to demonstrate avoidance or aggressive behaviour towards an observer, while horses were most likely to make a friendly approach. Fewer than 8% of working equines had abnormal mucous membranes, ectoparasites or poor coat condition. Body lesions occurred predominantly in the areas of the breast/shoulder, withers and girth in all three species, with mules having the highest prevalence of lesions in these areas (22.5, 21.3 and 28.4%, respectively). Among horses and donkeys, the prevalence of these lesions was influenced by the type of work carried out. Lesions on the head, neck, ribs, flank and tail base were seen in less than 10% of animals. Across all three species approximately 70% of animals were thin, having a body condition score (BCS) of 2 or less on a scale of 1-5 (1, very thin; 5, very fat) and more horses were in very thin condition (BCS 1) than mules or donkeys. Over 75% of animals demonstrated limb deformities and abnormalities of gait. The results of this study are being used as the initial stage of a long-term strategy to inform priorities for welfare interventions in working equines and to establish a welfare benchmark. Subsequent stages will rank the welfare concerns identified, assess the contributing risk factors and implement specific interventions to address these risks. Following intervention, success in improving welfare will be measured by repetition of this protocol and comparison with the benchmark.  
  Address Department of Clinical Veterinary Science, University of Bristol, Langford, Bristol BS40 5DU, UK. joy.pritchard@bristol.ac.uk  
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  Series Volume Series Issue Edition  
  ISSN 0167-5877 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:15907574 Approved no  
  Call Number Serial 1889  
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Author Burden, F.; Thiemann, A. url  doi
openurl 
  Title Donkeys Are Different Type Journal Article
  Year 2015 Publication Journal of Equine Veterinary Science Abbreviated Journal (up) Proceedings of the 2015 Equine Science Society Symposium  
  Volume 35 Issue 5 Pages 376-382  
  Keywords Donkey; Ass; Equid; Mule  
  Abstract As a unique species of equine, the donkey has certain specific variations from the horse. This review highlights the origins of the donkey and how this impacts on its behavior, physiology, and propensity to disease. The donkey is less of a flight animal and has been used by humans for pack and draught work, in areas where their ability to survive poorer diets, and transboundary disease while masking overt signs of pain and distress has made them indispensable to human livelihoods. When living as a companion animal, however, the donkey easily accumulates adipose tissue, and this may create a metabolically compromised individual prone to diseases of excess such as laminitis and hyperlipemia. They show anatomic variations from the horse especially in the hoof, upper airway, and their conformation. Variations in physiology lead to differences in the metabolism and distribution of many drugs. With over 44 million donkeys worldwide, it is important that veterinarians have the ability to understand and treat this equid effectively.  
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  Series Volume Series Issue Edition  
  ISSN 0737-0806 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6541  
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Author Kirkpatrick, J.F.; Turner, J.W.J.; Liu, I.K.; Fayrer-Hosken, R.; Rutberg, A.T. openurl 
  Title Case studies in wildlife immunocontraception: wild and feral equids and white-tailed deer Type Journal Article
  Year 1997 Publication Reproduction, fertility, and development Abbreviated Journal (up) Reprod Fertil Dev  
  Volume 9 Issue 1 Pages 105-110  
  Keywords Animals; Antigens/immunology; Contraception, Immunologic/*veterinary; *Deer; *Equidae; Female; Immunization, Secondary; Pest Control/*methods; Pregnancy; Swine; Vaccines/administration & dosage; Zona Pellucida/immunology  
  Abstract Non-lethal management methods are required for wild equids that are protected by law and for deer inhabiting areas where lethal controls are not legal or safe. Single or multiple inoculations of porcine zona pellucida (PZP) vaccine have been delivered to wild horses and deer by means of darts. Contraceptive efficacy in horses after two inoculations ranged from 90% to 100%, and after a single inoculation ranged from 19% to 28%. Mares given a controlled-release form of the vaccine had foaling rates ranging from 7% to 20%. No detectable changes in social organization or behaviours among treated horses occurred. Contraceptive effects were reversible after 4 consecutive years of treatment but 5-7 years of treatment resulted in ovulation failure and decreased urinary oestrogen concentrations. Among deer, two inoculations were 70-100% effective in preventing fawns, but one inoculation yielded a contraceptive efficacy of < or = 20%, with pregnancies occurring late in the breeding season; a single annual booster inoculation reduced fertility to 20% in the second year. Energy costs of extended breeding seasons were less than those resulting from pregnancy. After two years of treatment, ovaries appeared normal. These studies suggest that PZP immunocontraception can be successfully applied to certain free-roaming populations of wild horses and deer.  
  Address ZooMontana, Billings 59108, USA  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1031-3613 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:9109199 Approved no  
  Call Number refbase @ user @ Serial 143  
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Author Moehlman, P.D. url  openurl
  Title Endangered wild equids Type Journal Article
  Year 2005 Publication Scientific American Abbreviated Journal (up) Sci Am  
  Volume 292 Issue 3 Pages 74-81  
  Keywords Africa; Americas; Animals; *Animals, Wild/physiology; Asia; *Conservation of Energy Resources; Environment; *Equidae/physiology; Food Chain; Humans; Male; Reproduction  
  Abstract  
  Address IUCN-The World Conservation Union/Species Survival Commission Equid Specialist Group  
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  Series Volume Series Issue Edition  
  ISSN 0036-8733 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:15859216 Approved no  
  Call Number refbase @ user @ Serial 551  
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Author Macfadden, B.J. doi  openurl
  Title Evolution. Fossil horses--evidence for evolution Type Journal Article
  Year 2005 Publication Science (New York, N.Y.) Abbreviated Journal (up) Science  
  Volume 307 Issue 5716 Pages 1728-1730  
  Keywords Animals; Body Size; DNA, Mitochondrial; Diet; *Equidae/anatomy & histology/classification/genetics; *Evolution; Feeding Behavior; *Fossils; *Horses/anatomy & histology/classification/genetics; Paleodontology; Phylogeny; Time; Tooth/anatomy & histology  
  Abstract  
  Address Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA. bmacfadd@flmnh.ufl.edu  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1095-9203 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:15774746 Approved no  
  Call Number Serial 1892  
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Author Thackeray, J.F. openurl 
  Title Zebras from wonderwerk cave, northern Cape province, South Africa: attempts to distinguish Equus burchelli and E. quagga Type Journal Article
  Year 1988 Publication South African journal of science Abbreviated Journal (up) Suid- Afrikaanse Tydsskrif vir Wetenskap  
  Volume 84 Issue Pages 99-101  
  Keywords Cape Province; Teeth; Statistical analysis; Equidae; Hippomorpha; South Africa; Southern Africa; Perissodactyla; Mammalia; Vertebrata  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0038-2353 ISBN Medium  
  Area Expedition Conference  
  Notes from Professor Hans Klingels Equine Reference List Approved yes  
  Call Number Serial 1644  
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Author Smith, D.G.; Pearson, R.A. doi  openurl
  Title A review of the factors affecting the survival of donkeys in semi-arid regions of sub-Saharan Africa Type Journal Article
  Year 2005 Publication Tropical Animal Health and Production Abbreviated Journal (up) Trop Anim Health Prod  
  Volume 37 Suppl 1 Issue Pages 1-19  
  Keywords Africa South of the Sahara; Animal Nutrition Physiology; Animals; Behavior, Animal; Cattle; Equidae/growth & development/*physiology; Socioeconomic Factors  
  Abstract The large fluctuations seen in cattle populations during periods of drought in sub-Saharan Africa are not evident in the donkey population. Donkeys appear to have a survival advantage over cattle that is increasingly recognized by smallholder farmers in their selection of working animals. The donkey's survival advantages arise from both socioeconomic and biological factors. Socioeconomic factors include the maintenance of a low sustainable population of donkeys owing to their single-purpose role and their low social status. Also, because donkeys are not usually used as a meat animal and can provide a regular income as a working animal, they are not slaughtered in response to drought, as are cattle. Donkeys have a range of physiological and behavioural adaptations that individually provide small survival advantages over cattle but collectively may make a large difference to whether or not they survive drought. Donkeys have lower maintenance costs as a result of their size and spend less energy while foraging for food; lower energy costs result in a lower dry matter intake (DMI) requirement. In donkeys, low-quality diets are digested almost as efficiently as in ruminants and, because of a highly selective feeding strategy, the quality of diet obtained by donkeys in a given pasture is higher than that obtained by cattle. Lower energy costs of walking, longer foraging times per day and ability to tolerate thirst may allow donkeys to access more remote, under-utilized sources of forage that are inaccessible to cattle on rangeland. As donkeys become a more popular choice of working animal for farmers, specific management practices need to be devised that allow donkeys to fully maximize their natural survival advantages.  
  Address Department of Agriculture and Forestry, University of Aberdeen, Aberdeen, AB24 3FX, Scotland, UK. d.g.smith@abdn.ac.uk  
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  Series Volume Series Issue Edition  
  ISSN 0049-4747 ISBN Medium  
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  Notes PMID:16335068 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4231  
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Author Robinson, H.C. openurl 
  Title Equine interspecies aggression Type
  Year 2007 Publication The Veterinary record Abbreviated Journal (up) Vet. Rec.  
  Volume 160 Issue 7 Pages 244  
  Keywords *Aggression; Animals; Behavior, Animal; Equidae; Horses/*physiology/*psychology  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0042-4900 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:17308028 Approved no  
  Call Number Serial 1773  
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