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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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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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Abstract |
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 |
Kydyraliev A.K. |
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Title |
Some animal species' habitat alteration in the Central Tien Shan |
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Miscellaneous |
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1970 |
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Part 1. |
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46-48 |
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Kyrgyzstan; tien shan; human influence; water conservation activity; decline; range; number; birds; mammals; game species; moral; argali; snow leopard.; 7540; Russian |
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Irrigation and drainage activity in Tien Shan led some bird species to disappear. Number of species to build their nests in tree holes has dropped. Mongolian sandpiper and black-bellied sand grouse disappeared in the steppe areas. Great bustard, formerly nesting in this area, can now be rarely seen only in migration. The direct anthropogenic influence resulted in shrinkage of game animal and bird populations such as moral, goitered gazelle, argali, snow leopard, and stone marten. |
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Full text available in RussianJournal Title: Influence of anthropogenic factors on the formation of zoogeographic complexes. The fifth inter-school zoogeographic conference. |
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Call Number |
SLN @ rana @ 732 |
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605 |
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Author |
Ishunin G.I. |
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Title |
Game and rare animals of Uzbekistan and their protection |
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Miscellaneous |
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1974 |
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1 |
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243-244 |
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Uzbekistan; game species; rare species; conservation; snow leopard.; 6890; Russian |
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Totally in Uzbekistan inhabited about 40 game species, but many of them became rare (Mellivora capensis indica, Lutra lutra seistanica, Hyaena hyaena, Felis pardus ciscaucasicus, Felis uncia, Felis ¤…a…c…l michaelis, F.manul ferrugineus, Cervus elaphus bactrianus, ¥…da… falconeri heptneri, Ovis orientalis bochariensis, I. about severtsovi, About ammon k…a†1ini), from fauna of region have disappeared Cuon alpinus hesperius, D…nthera tigris virgata, Acion¢o jubatus, Cervus elaphus sibiricus, Equus h†mionus, E. dazewalskii, Camelus bactrianus. For protection of valuable species of animals in Uzbekistan 6 nature reserves and 6 zakazniks were established. |
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Full text available in RussianJournal Title: Proceedings of the First International congress on mammals. |
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Call Number |
SLN @ rana @ 667 |
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413 |
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Author |
Lydekker, R. |
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Title |
The Game Animals of India, Burma, Malaya, and Tibet |
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Book Chapter |
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Year |
1907 |
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prey; predators; game; India; Burma; Malaya; Tibet; browse; 1930 |
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Rowland Ward |
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London |
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English |
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ProCite field [12]: (1907) |
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SLN @ rana @ 9 |
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630 |
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Author |
Yanushevich A.I. |
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Title |
Status of hunting industry in Kyrgyzstan |
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Miscellaneous |
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Year |
1969 |
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Part. II. |
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110-113 |
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Kyrgyzstan; game species; fur-trade; snow leopard.; 8600; Russian |
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In Kyrgyz SSR, there are 26 fur animal species, including three acclimatized, six wild ungulate and 70 bird species. They all can serve as objects of commercial and sport hunting. 56 snow leopards, 120 wild boars, 96 roe-deers, 121 ibexes, and 14 argalis were caught 1962 1967. A majority of the animals were exported from the country. The Kyrgyz SSR is one of the main suppliers of snow leopards, hunting for which for the sake of its fur-skin is prohibited. |
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Full text available in RussianJournal Title: Proceedings of conference “Capacity and production of game preserves in the USSR”. |
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SLN @ rana @ 837 |
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1053 |
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Author |
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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Keywords |
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 |
Vereschagin N.K., S.T.B. |
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Title |
Rare mammals in the USSR: protection challenges |
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Miscellaneous |
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1976 |
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3-9 |
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Ussr; mammals; game species; non-game species; rare species; vanishing species; IUCN Red Data Book; snow leopard.; 8480; Russian |
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A group of rare and endangered species was segregated within the game and non-game mammals of the USSR. Some species in the group were formerly referred to game species. But due to over-hunting and the absence of measures aimed at their reproduction the population dropped sharply. Mammal fauna of the USSR includes more than 80 species that require special protection. The Red list of IUCN includes, among the others, white bear, Transcaucasian sub-species of brown bear, Amur and Turan tigers, snow leopard, Caucasian and Amur leopards, caracal, cheetah, Tien-Shan and Ussuri sub-species of dhole, Atlantic walrus, island seal, kulan, Bukhara red deer, New Land reindeer, goitered gazelle, Menzbier's marmot. |
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Full text available in RussianJournal Title: Rare mammals of USSR fauna. |
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Call Number |
SLN @ rana @ 825 |
Serial |
985 |
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Author |
ud Din, J. |
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Title |
Assessing the Status of Snow Leopard in Torkhow Valley, District Chitral, Pakistan: Final Technical Report |
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2008 |
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1-16 |
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Keywords |
status; snow; snow leopard; snow-leopard; leopard; valley; chitral; Pakistan; Report; study; prey; Base; conflict; threats; threat; wildlife; sign; transect; surveys; survey; Slims; Data; number; snow leopards; snow-leopards; leopards; Animals; Animal; population; livestock; livestock depredation; livestock-depredation; depredation; area; Case; ungulates; ungulate; Himalayan; himalayan ibex; ibex; rut; using; prey species; prey-species; species; marmot; game; birds; carnivores; carnivore; wolf; wolves; jackal; fox; survival; retaliatory; retaliatory killing; retaliatory-killing; killing; poisoning; poaching; loss; habitat; habitat degradation; habitat-degradation; degradation; grazing; collection; awareness; Gis; map; staff; field; training; conservation; community; distribution; resource; project; network; program |
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This study was aimed at assessing the status of Snow leopard, its major prey base, and the extent of human-Snow leopard conflict and major threats to the wildlife in north Chitral (Torkhow valley) Pakistan. Snow leopard occurrence was conformed through sign transect surveys i.e. SLIMS. Based on the data collected the number of Snow leopards in this survey block (1022 Kmý) is estimated to be 2-3 animals. Comparing this estimate with the available data from other parts of the district the population of snow leopard in Chitral district was count to be 36 animals. Livestock depredation reports collected from the area reflect the existence of human-snow leopard conflict and 138 cases were recorded affecting 102 families (in a period of eight years, 2001-2008). Ungulates (Himalayan Ibex) rut season surveys were conducted in coordination with NWFP Wildlife department. A total of 429 animals were counted using direct count (point method) surveys. Other snow leopard prey species recorded include marmot, hare, and game birds. Signs of other carnivores i.e. wolf, jackal, and fox were also noticed. Major threats to the survival of wildlife especially snow leopard reckoned include retaliatory killing (Shooting, Poisoning), poaching, loss of natural prey, habitat degradation (over grazing, fodder and fuel wood collection), lack of awareness, and over population. GIS map of the study area was developed highlighting the area searched for Snow leopard and its prey species. Capacity of the Wildlife Department staff was built in conducting SLIMS and ungulate surveys through class room and on field training. Awareness regarding the importance of wildlife conservation was highlighted to the students, teachers and general community through lectures and distribution of resource materials developed by WWF-Pakistan. |
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Project funded by Snow Leopard Network's Snow Leopard Conservation Grant Program. |
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SLN @ rana @ 1065 |
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978 |
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Author |
Stockley, G. |
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Title |
Stalking in the Himalayas and Northern India |
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1936 |
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Himalaya; India; hunting; big-game; browse; big game; big; game; 2010 |
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Herbert Jenkins |
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London |
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SLN @ rana @ 13 |
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939 |
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Author |
Stockley, G. |
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Title |
Big Game Shooting In the Indian Empire |
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1928 |
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hunting; big-game; India; browse; big; game; 2000 |
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Constable |
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London |
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SLN @ rana @ 12 |
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938 |
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