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Author |
Christiansen, P. |
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Title |
Canine morphology in the larger Felidae: implications for feeding ecology |
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Journal Article |
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Year |
2007 |
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Biological Journal of the Linnean Society |
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91 |
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573-592 |
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bite force, canine, clouded leopard, feeding behaviour, felid, Homotherium serum, leopard, Megantereoncultridens, morphology, Neofelis nebulosa, paleontology, Panthera pardus, Panthera tigris, puma, Puma concolor, Smilodon fatalis, Smilodon populator, snow leopard, Uncia uncia |
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Abstract |
Canine morphology is analysed at seven intervals along the crown in both
anteroposterior and lateromedial perspective in seven species of large felids. The puma and the snow leopard have stout, rather conical canines, whereas those of lions, jaguars, and tigers bear substantial resemblance to each other, reflecting their phylogenetic relationships, and are less conical and large. The canines of the leopard are intermediate in morphology between those of the other species, probably reflecting its more generalized diet. The clouded leopard has very large and blade-like canines, which are different from the other analysed species. Canine bending strengths to estimated bite forces appear to differ less among the species than morphology,indicating that the evolution of canines has been constricted with respect to their strength in failure, probably owing to their being equally important for species fitness. However, the clouded leopard again stands out, having a high estimated bite force and rather weak canines in bending about the anteroposterior as well as lateromedial planes compared to the other species. Canine morphology to some extent reflects differences in killing mode, but also appears to be related to the phylogeny. The marked divergence of the clouded leopard is presently not understood. |
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SLN @ rana @ |
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1115 |
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Author |
Xinchun, M. |
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Title |
Distribution in the wild and the captive raising of snow leopards in Xinjiang, China |
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Conference Article |
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Year |
1994 |
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157-162 |
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distribution; habitat; ibex; blue-sheep; argali; hides; skins; pelts; furs; coats; zoos; zoo; China; captivity; care; husbandry; feeding; diet; housing; Disease; blue; sheep; browse; 3770 |
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Islt |
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Usa |
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J.L.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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Call Number |
SLN @ rana @ 267 |
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1031 |
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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 |
Publication |
Evolutionary Ecology Research, |
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9 |
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1263-1276 |
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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 |
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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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Author |
Lilin, Z. |
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Title |
Captive rearing of a wild snow leopard cub in the Xining Zoo, China |
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Conference Article |
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Year |
1994 |
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177-182 |
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zoos; captivity; zoo; husbandry; rearing; distribution; diet; food; feeding; young; cubs; reproduction; breeding; mating; China; browse; 3700 |
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Islt |
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Usa |
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J.L.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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Call Number |
SLN @ rana @ 245 |
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619 |
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Author |
Hongguang, H.; Yongfu, X. |
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Title |
Captive snow leopards in the Chongqing Zoo |
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Conference Article |
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1994 |
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191-193 |
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China; zoos; captivity; cage; food; feeding; diet; management; zoo; browse; 3390 |
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Islt |
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Usa |
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J.L.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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Call Number |
SLN @ rana @ 228 |
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389 |
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Author |
Fox, J.L.; Chundawat, R.S. |
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Title |
Observations of snow leopard stalking, killing and feeding behavior |
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1988 |
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Mammalia |
Abbreviated Journal |
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52 |
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1 |
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137-140 |
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India; stalking; killing; feeding; behavior; observations; browse; 850 |
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Full Text at URLDocument Type: English |
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SLN @ rana @ 99 |
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292 |
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Author |
Brunstein, L. |
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Title |
Handrearing Snow Leopards in the Cheyenne Mountain Zoo |
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Journal Article |
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1978 |
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Int.Ped.Book of Snow Leopards |
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1 |
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44-49 |
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hand-rearing; hand; rearing; cubs; bottle; feeding; diet; browse; 3580 |
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SLN @ rana @ 43 |
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200 |
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Author |
Aromov B. |
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Title |
The Biology of the Snow Leopard in the Hissar Nature Reserve |
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Miscellaneous |
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1995 |
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Abbreviated Journal |
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108-109 |
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Keywords |
Uzbekistan; snow leopard; Hissar ridge; Hissar nature reserve; number; diet; breeding.; 6070; Russian; work; Data; biology; snow; snow-leopard; leopard; nature; reserve; snow leopards; snow-leopards; leopards; times; tracks; pugmarks; Feed; ibex; kills; kill; Age; records; predation; Case; horses; horse; marmot; Himalayan; domestic; goat; wild; wild boar; sheep; Cattle; attack |
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The work contains data on biology snow leopard in Hissar nature reserve, Uzbekistan. The number of snow leopards in this reserve has increased from two or four in 1981 to between 13 and 17 individuals in 1994. Since 1981, snow leopards have been sighted 72 times and their tracks or pugmarks 223 times. In the Hissar Nature Reserve snow leopards largely feed on ibex. Over a period of 14 years, 92 kills and remains of ibex aged from one to thirteen years of age have been examined. Other records of predation, by the number of events observed, include 33 cases of juvenile and mature horses, 25 long-tailed marmot (Marmota caudata). 18 Himalayan snowcock (Tetraogallus himalayemis), 17 domestic goat, 13 wild boar (Sus scrofa), five domestic sheep and three incidents involving cattle. Twenty-two attacks on domestic flocks were reported, and these occurred during both the daytime and at night. Snow leopards usually mate between the 20th of February and March 20th. The offspring are born in late April to May, and there are usually two per litter (23 encounters), although a single litter of three has also been recorded. |
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Full text available in RussianJournal Title: Proceeding of 8th International Snow Leopard Symposium Islamabad. |
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SLN @ rana @ 586 |
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99 |
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