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Author  |
Ale, S.; Brown, J. |
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Title |
The contingencies of group size and vigilance |
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Miscellaneous |
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Year |
2007 |
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Evolutionary Ecology Research, |
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9 |
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1263-1276 |
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attraction effect,contingency,dilution effect,fitness,group-size effect,many-eyes effect,predation risk,vigilance behaviour; predation; decline; potential; predators; predator; feeding; Animals; Animal; use; food; effects; Relationship; behaviour; methods; game; Interactions; interaction; factor; value; Energy |
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Background: Predation risk declines non-linearly with one's own vigilance and the vigilance of others in the group (the 'many-eyes' effect). Furthermore, as group size increases, the individual's risk of predation may decline through dilution with more potential victims, but may increase if larger groups attract more predators. These are known, respectively, as the dilution effect and the attraction effect.
Assumptions: Feeding animals use vigilance to trade-off food and safety. Net feeding rate declines linearly with vigilance.
Question: How do the many-eyes, dilution, and attraction effects interact to influence the relationship between group size and vigilance behaviour?
Mathematical methods: We use game theory and the fitness-generating function to determine the ESS level of vigilance of an individual within a group.
Predictions: Vigilance decreases with group size as a consequence of the many-eyes and dilution effects but increases with group size as a consequence of the attraction effect, when they act independent of each other. Their synergetic effects on vigilance depend upon the relative strengths of each and their interactions. Regardless, the influence of other factors on vigilance – such as encounter rate with predators, predator lethality, marginal value of energy, and value of vigilance – decline with group size. |
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English |
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SLN @ rana @ 886 |
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53 |
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Clyde, V.L.; Ramsay, E.C.; Bemis, D.A. |
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Title |
Fecal shedding of Salmonella in exotic felids |
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Journal Article |
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Year |
1997 |
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J.Zoo Wildl.Med |
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28 |
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2 |
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148-152 |
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antibiotics; captive-animal-care; diarrhea; endangered; threatened-species; handling-methods; mammals parasites; Diseases; salmonella; zoos; snow-leopard; leopard; salmonellosis; husbandry; captive; Animal; care; threatened; species; handling; mammals; parasites; snow; browse; 1320 |
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The authors discuss the occurrence of salmonellosis in collections of exotic felids. Data suggest that zoo employees having contact with cat feces or raw diets have a high rate of occupational exposure to Salmonella and should exercise appropriate hygienic precautions. pcp |
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Milwaukee Cty. Zoo, Milwaukee, WI 53226
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SLN @ rana @ 304 |
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227 |
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De Groot, H.; Van Swieten, P.; Aalberse, R.C. |
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Title |
Evidence for a Fel d I-like molecule in the “big cats” (Felidae species) |
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Journal Article |
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Year |
1990 |
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J Allergy Clin Immunol |
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86 |
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1 |
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107-116 |
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Adolescence; Adult; Allergens; immunology; Animal; Antibodies; Monoclonal; diagnostic; use; Antibody; Specificity; Carnivora; Cats; Comparative; study; Cross; Reactions; Hair; Histamine; Release; Human; IgE; analysis; IgG; Middle; Age; Radioallergosorbent; Test; methods; Support; Non-U.S.Gov't; browse; us; government; gov't; 240 |
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In this study, we investigated the cross-reactivity pattern of IgE and IgG4 antibodies to the major feline allergen, Fel d I. We studied the IgE and IgG4 response of 11 cat-allergic patients against Fel d I-like structures in eight members of the Felidae family: ocelot, puma, serval, siberian tiger, lion, jaguar, snow leopard, and caracal. Hair from these “big cats” was collected, extracted, and used in a RAST system and histamine-release test. By means of a RAST-inhibition assay with affinity-purified Fel d I from cat dander, it was established that, in the Felidae species, a Fel d I equivalent is present that reacts with IgE and IgG4 antibodies. We found that all patients had cross-reacting IgE antibodies to seven of the Felidae tested; no IgE antibodies reactive with the caracal were found. Eight of 10 patients with IgG4 antibodies directed to cat dander also had IgG4 antibodies directed to several Felidae species, including the caracal. However, the correlation between the IgE and the IgG4 antibody specificity was low, indicating that, in the case of Fel d I IgE and IgG4, antibodies do not necessarily have the same specificity. |
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0091-6749 |
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Document Type: eng |
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SLN @ rana @ 157 |
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233 |
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Author |
Froede, K. and Jackson, R. |
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Title |
Snow Leopard Manual Field Study Techniques for the Kingdom Nepal |
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Report |
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2001 |
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1-69 |
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analysis, census, data, field work, forms, manual, method, methods, monitoring, research, signs, snow leopard, survey, techniques, transects, Uncia uncia |
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The publication of this manual aims sharing and facilitating the study on snow leopard and its prey species among mid-level professionals interested in conducting fieldwork on their own. The manual is derived from the 1996 “Snow Leopard Survey and Conservation Handbook” written by Dr. Rodney Jackson and Dr. Don Hunter and published by International Snow Leopard Trust (ISLT) based in seatle, Washington, USA. The first section introduces the topic, the second and third section deal with presence/ absence and abundance survey methods. The various survey-froms with instructions are given in the annexes. |
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Baluwatar, PO. Box: 7660, Kathmandu, Nepal |
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WWF Nepal Program |
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WWF Nepal |
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Kathmandu, Nepal |
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SLN @ rana @ |
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1128 |
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Author |
Guerrero, D. |
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Title |
Animal behavior concerns & solutions: snow leopard (Uncia uncia) evaluation, zoo |
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Journal Article |
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Year |
1998 |
Publication |
Anim.Keepers' Forum |
Abbreviated Journal |
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25 |
Issue |
2 |
Pages |
56-58 |
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Keywords |
aggressive-behavior; behavior; captive-animal-care; diets; endangered; threatened-species; genetics; handling-methods; intraspecies-relationships; social-behavior; husbandry; zoos; snow leopard; aggressive; captive; Animal; care; threatened; species; handling; methods; intraspecies; relationships; social; browse; 1310 |
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The author offers advice on how a captive-raised snow leopard cub could be acclimated to humans so it could be used as a zoo “ambassador”. The cub had negative experiences with humans and lacked socialization with other animals and conspecifics. Methods of avoiding and redirecting the cub's aggressive behavior are suggested. lgh. |
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Ark Anim., Inc., P.O. Box 1154, Escondido, CA 92033-1154. e-mail: arkabc@arkanimals.com
Document Type: English |
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SLN @ rana @ 338 |
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358 |
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Author |
Hunter, D. |
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Title |
Mongolian-American Snow Leopard Project |
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Journal Article |
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1997 |
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Cat News |
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26 |
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15-16 |
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asia; Mongolia; panthera uncia; endangered; threatened species; mammals; study methods; techniques; telemetry; snow leopard project; distribution; Gobi Desert; threatened; species; snow; leopard; snow-leopard; project; study; methods; panthera; uncia; browse; 630 |
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A snow leopard project is underway to study snow leopards in Mongolia. The project, called the Mongolian-American Snow Leopard Project, involves the Wildlife Conservation Society, the Mongolian Association for the Conservation of Nature and Environment, the National Geographic Society, the Mongolian Ministry of Nature and the Environment, the U.S. National Biological Service, and the International Snow Leopard Trust. The objective of the study is to survey the distribution and status of Mongolia's snow leopards, including those living in the Gobi Desert. klf. |
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AUTHOR ADDRESS: Natl. Biol. Surv., MESC, 4512 McMurray Ave., Fort Collins, CO 80525-3400, NOTES: reprinted from: Snow Line (Intl. Snow Leopard Trust) Vol. XIV, 1996.
Document Type: English
Call Number: WR97-008333 |
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SLN @ rana @ 310 |
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392 |
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Hunter, D.O.; Jackson, R.; Freeman, H.; Hillard, D. |
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Project snow leopard: a model for conserving central Asia biodiversity |
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1994 |
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247-252 |
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conservation; habitat; Himalaya; parks; reserves; park; reserve; refuge; survey; methods; Slims; education; protected-area; anthropogenic-degradation; asia; China; Bhutan; India; Pakistan; Nepal; Afghanistan; Mongolia; Russia; Ussr; Soviet-Union; Kazakhstan; Kirghizstan; Tajikistan; Uzbekistan; Project-snow-leopard; network; preybase; Islt; Usfws; Ners; Information-Network; kazakstan; browse; protected; area; anthropogenic; degradation; soviet; union; project; snow; leopard; international snow leopard trust; information; 2660 |
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International Snow Leopard Trust |
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Usa |
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J.Fox; D.Jizeng |
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Full Text at URLTitle, Monographic: Seventh International Snow Leopard SymposiumPlace of Meeting: ChinaDate of Copyright: 1994. |
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SLN @ rana @ 220 |
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395 |
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International Snow Leopard Trust |
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Assessing Presence, relative abundance and habitat of snow leopards and their prey: a handbook of field techniques |
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1992 |
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habitat; surveys; methods; field-techniques; assessment; prey; browse; field techniques; field; techniques; 2700 |
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Seattle, Washington. Out of date; no longer in circulation. |
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SLN @ rana @ 197 |
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405 |
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Jianzhang, M.; Hongfei, Z.; Cheng, K. |
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Title |
The Distribution Status of Snow Leopard (Panthera uncia) in China |
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2002 |
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snow; leopard; habitat; distribution; study; methods; conservation; uncia; China; 5120 |
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Islt |
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Islt |
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Title, Monographic: Proceedings of the Snow Leopard Survival SummitPlace of Meeting: Seattle,WA |
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SLN @ rana @ 498 |
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494 |
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Koshkarev, E. |
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Snow leopard along the border of Russia and Mongolia |
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1998 |
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Cat News |
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28 |
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12-14 |
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behavior; census; survey methods; desert-habitat; distribution; ecosystems; endangered; threatened species; home-range; territory; mammals; montane; Russia; Mongolia; scat-analysis; tracks; tracking; status; Hovsogul; Sayan; siberia; Hovsogol; browse; survey; methods; desert; habitat; threatened; species; home; range; scat; analysis; 550 |
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The author discusses the distribution of snow leopards along the border of Russia and Mongolia. The range extension of the leopard indicates their ability to cross desert areas that separate mountain habitats.habitat; range extension; scat analysis; techniques; tracks/tracking | snow leopard |
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Full Text at URL: Inst. Biol., Irkutsk Univ., Russia , data base: Wildlife Review AbstractsDocument Type: English |
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SLN @ rana @ 339 |
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