Ecology and social structure of the Gobi khulan Equus hemionus subsp. in the Gobi B National Park, Mongolia
Identifieur interne : 000253 ( France/Analysis ); précédent : 000252; suivant : 000254Ecology and social structure of the Gobi khulan Equus hemionus subsp. in the Gobi B National Park, Mongolia
Auteurs : C. Feh [France] ; B. Munkhtuya [Mongolie] ; S. Enkhbold [Mongolie] ; T. Sukhbaatar [Mongolie]Source :
- Biological Conservation [ 0006-3207 ] ; 2001.
Descripteurs français
- Wicri :
- geographic : Mongolie.
English descriptors
Abstract
The status of the Gobi khulan Equus hemionus subsp. is recorded as “insufficiently known” in the Species Survival Commission's Equid Action Plan. Recent counts confirm that Mongolia holds the most important population of the whole species. Since 1953, the animals have benefited from a protected status, but this is now challenged. A 5-year study in the B part of the Gobi National Park on one subpopulation showed that it has remained stable over the past 15 years with an adequate mean reproductive rate of 15% and a 50% survival rate over the first year. Age/sex related mortality and prey analysis indicate that wolf predation probably has some impact on the population, in particular for 4–6-year-olds of both sexes at the start of reproduction. Desert and mountain steppes are the khulan's year-round preferred habitat, but ‘oases’, play an important role at the beginning of lactation. Anthropogenic factors affect both home range and habitat use through direct intervention or permanent occupation of the scarce water sources. Khulans of this subpopulation, unlike other Asian and African wild asses, form year-round stable, non-territorial families. These families and all-male groups join together into “bands” in winter, and herds of several hundred animals, where reproductive rate is highest, form throughout the year. The existence of such herds may thus be critical for the breeding success of the population. Our study provides the first detailed quantitative data for this subspecies, which will help to monitor changes in the future.
Url:
DOI: 10.1016/S0006-3207(01)00051-9
Affiliations:
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ISTEX:10255EA927D6D4B2C702FBB9C382E81A681E9C81Le document en format XML
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Recent counts confirm that Mongolia holds the most important population of the whole species. Since 1953, the animals have benefited from a protected status, but this is now challenged. A 5-year study in the B part of the Gobi National Park on one subpopulation showed that it has remained stable over the past 15 years with an adequate mean reproductive rate of 15% and a 50% survival rate over the first year. Age/sex related mortality and prey analysis indicate that wolf predation probably has some impact on the population, in particular for 4–6-year-olds of both sexes at the start of reproduction. Desert and mountain steppes are the khulan's year-round preferred habitat, but ‘oases’, play an important role at the beginning of lactation. Anthropogenic factors affect both home range and habitat use through direct intervention or permanent occupation of the scarce water sources. Khulans of this subpopulation, unlike other Asian and African wild asses, form year-round stable, non-territorial families. These families and all-male groups join together into “bands” in winter, and herds of several hundred animals, where reproductive rate is highest, form throughout the year. The existence of such herds may thus be critical for the breeding success of the population. Our study provides the first detailed quantitative data for this subspecies, which will help to monitor changes in the future.</div></front></TEI><affiliations><list><country><li>France</li><li>Mongolie</li></country><region><li>Provence-Alpes-Côte d'Azur</li></region><settlement><li>Arles</li></settlement></list><tree><country name="France"><region name="Provence-Alpes-Côte d'Azur"><name sortKey="Feh, C" sort="Feh, C" uniqKey="Feh C" first="C." last="Feh">C. 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