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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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SLN @ rana @ 886 |
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53 |
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Hunter, D.O.; Jackson, R.; Freeman, H.; Hillard, D. |
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Title |
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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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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Title |
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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565 |
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Author |
Schaller, G. |
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Title |
Surveys of Mountain Wildlife in China, Report # 6 |
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1987 |
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10 |
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Xinjiang; Tian-Shan; Tomur-Feng; tibetan-plateau; Altun; surveys; methods; hunting; livestock; grazing; browse; 4200 |
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Full Text Available at URL |
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SLN @ rana @ 408 |
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854 |
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Wingard, J.R.; Zahler, P. |
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Title |
Silent Steppe: The Illegal Wildlife Trade Crisis in Mongolia |
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Report |
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2006 |
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1-170 |
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steppe; illegal; wildlife; trade; Mongolia; study; threat; populations; population; areas; area; fur; fur trade; fur-trade; game; meat; hunting; Chain; impact; biodiversity; Biodiversity conservation; conservation; rural; livelihood; Wildlife-Management; management; survey; survey methods; methods; history; action; International; enforcement; domestic; community-based; approach |
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The current study in Mongolia is truly groundbreaking, in that it shows that the problem of commercial wildlife trade is also vast, unsustainable, and a major threat to wildlife populations in other areas. This paper's Executive Summary briefs the topics of wildlife trade in Mongolia, fur trade, medicinal trade, game meat trade, trophy and sport hunting, trade chains and markets, trade sustainability, impacts of wildlife trade on biodiversity conservation, impacts of trade on rural livelihoods, enabling wildlife management, and management recommendations. The main content of the paper includes: wildlife trade survey methods, a history of wildlife trade in Mongolia, wildlife take and trade today, enabling wildlife management, and recommendations and priority actions. The recommendations have been divided into six separate sections, including (1) cross-cutting recommendations, (2) international trade enforcement, (3) domestic trade enforcement, (4) hunting management, (5) trophy and sport hunting management, and (6) community-based approaches. Each section identifies short-term, long-term, and regulatory goals in order of priority within each subsection. |
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World Bank |
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Washington, D.C. |
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East Asia and Pacific Environment and Social Development Department |
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Mongolian version. English language translation is also available in the SLN bibliography. Mongolia Discussion Papers. East Asia and Pacific Environment and Social Development Department. Washington D.C.: World Bank. |
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SLN @ rana @ 1079 |
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1026 |
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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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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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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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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
Document Type: English |
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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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Evidence for a Fel d I-like molecule in the “big cats” (Felidae species) |
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Journal Article |
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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 |
Guerrero, D. |
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Animal behavior concerns & solutions: snow leopard (Uncia uncia) evaluation, zoo |
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1998 |
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Anim.Keepers' Forum |
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25 |
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2 |
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56-58 |
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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
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SLN @ rana @ 338 |
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358 |
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