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Author Bhatnagar, Y.V.
Title Ranging and Habitat Use by Himalayan Ibex (Capra ibex sibirica) in Pin Valley National Park Type Book Whole
Year 1997 Publication Abbreviated Journal
Volume Issue Pages
Keywords ibex; India; predator; prey; potected-area; parks; reserves; Pin-valley; browse; protected; area; 1850
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Corporate Author Thesis Ph.D. thesis
Publisher Saurashtra University Place of Publication Editor
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Notes Place of Publication: Rajkot, India Approved no
Call Number SLN @ rana @ 301 Serial 135
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Author Fox, J.L.; Nurbu, C.; Chundawat, R.S.
Title The Mountain Ungulates of Ladakh India Type Journal Article
Year 1991 Publication Biological Conservation Abbreviated Journal
Volume 58 Issue Pages 167-190
Keywords ungulates; predator; prey; Ladakh; India; browse; 1900
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Notes Document Type: English Approved no
Call Number SLN @ rana @ 180 Serial 298
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Author Fox, J.L.; Nurbu, C.; Chundawat, R.S.
Title Tibetian Argali (Ovis ammon hodgsoni) Type Journal Article
Year 1991 Publication Mammalia Abbreviated Journal
Volume Issue Pages 48-51
Keywords argali; predator; prey; Tibet; browse; 1910
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Notes Approved no
Call Number SLN @ rana @ 181 Serial 299
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Author Kuznetsnov, G.U.; Matyushkin, E.N.
Title The snow leopard hunts Type Journal Article
Year 1980 Publication Int.Ped.Book of Snow Leopards Abbreviated Journal
Volume 11 Issue Pages 44-48
Keywords Russia; Ussr; Soviet-Union; Tien-Shan; hunting; behavior; predator; prey; browse; soviet; union; tien; shan; 3760
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Notes Describes observations of a snow leopard hunting ibex in the western Tien Shan Mountains of USSR. The hunt was unsucceseful, but the account provides information on behavior of both the snow leoaprd and ibex in a predator prey relationship Approved no
Call Number SLN @ rana @ 56 Serial 599
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Author Mishra, C.; Rawat, G.S.
Title Livestock grazing and Biodiversity Conservation: Comments on Saberwal Type Journal Article
Year 1998 Publication Conservation Biology Abbreviated Journal
Volume 12 Issue Pages 25-32
Keywords conservation; Saberwal; biodiversity; livestock; grazing; predator; prey; browse; 1950
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Notes Document Type: English Approved no
Call Number SLN @ rana @ 341 Serial 690
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Author Richard, C.
Title Sectoral Report in Vol II: Developing Strategies for Agriculture and Related Sectors in Ladakh Type Report
Year 1999 Publication Abbreviated Journal
Volume Issue Pages
Keywords livestock; grazing; predator; prey; herders; herder; Ladakh; browse; 1970
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Notes Submitted to the Leh Autonomous Hill Developement Council by IMOCD, Jan 1999 Title, Analytic: Rangelands and Livestock as a Niche Opportunity for Ladakh. Approved no
Call Number SLN @ rana @ 373 Serial 815
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Author Schaller, G.B.
Title Wildlife of the Tibetan Steppe Type Book Whole
Year 1998 Publication Abbreviated Journal
Volume Issue Pages
Keywords Tibet; predator; prey; steppe; ungulates; browse; 1990
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Corporate Author Thesis
Publisher University of Chicago Press Place of Publication Chicago Editor
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Notes Approved no
Call Number SLN @ rana @ 344 Serial 871
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Author Shah, K.B.
Title On a hunting pair of snow leopards in western Nepal Type Journal Article
Year 1989 Publication Journal of Bombay Natural Historical Society Abbreviated Journal
Volume 86 Issue Pages 236-237
Keywords hunting; Nepal; predator; snow leopard
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Publisher Bombay Natural History Society Place of Publication Bombay, India Editor
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Notes Approved no
Call Number SLN @ rana @ 991 Serial 880
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Author The Snow Leopard Conservancy
Title Local People's Attitudes toward Wildlife Conservation in the Hemis National Park, with Special Reference to the Conservation of Large Predators Type Report
Year 2003 Publication Abbreviated Journal
Volume 7 Issue Pages 1-29
Keywords local; local people; people; attitudes; attitude; wildlife; conservation; Hemis; national; national park; National-park; park; large; large predators; predators; predator; field; Jackson
Abstract (up)
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Corporate Author Thesis
Publisher Place of Publication Sonoma, California Editor
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Notes SLC Field Series Document No 7. Prepared by R. Jackson, R. Wangchuk, and J. Dadul. Sonoma, California. Approved no
Call Number SLN @ rana @ 1012 Serial 964
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Author Ale, S.; Brown, J.
Title The contingencies of group size and vigilance Type Miscellaneous
Year 2007 Publication Evolutionary Ecology Research, Abbreviated Journal
Volume 9 Issue Pages 1263-1276
Keywords 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
Abstract (up) 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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Notes Approved no
Call Number SLN @ rana @ 886 Serial 53
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