Seasonal changes in the number of Relict Gull (Larus relictus) at Ebinur Lake, Western China
Ming MA, Ying CHEN, Kedeerhan BAYAHEN, BaoWen HU, Fei LI, JiaQing WU, Xiang GAO, Yu MEI
1 Key Laboratory of Biogeography and Bioresources in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; 2 Administrative Bureau of the National Nature Reserve in the Ebinur Wetland，Bole 833400, China
Seasonal changes in the number of Relict Gull (Larus relictus) at Ebinur Lake, Western China
Ming MA, Ying CHEN, Kedeerhan BAYAHEN, BaoWen HU, Fei LI, JiaQing WU, Xiang GAO, Yu MEI
1 Key Laboratory of Biogeography and Bioresources in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; 2 Administrative Bureau of the National Nature Reserve in the Ebinur Wetland，Bole 833400, China
摘要 The Relict Gull (Larus relictus) is recognized as a vulnerable species, with a worldwide population of about 6,000 individuals. Always inhabiting the extreme arid regions of Central Asia, their migratory routes and winter grounds are unclear. This research focused on distribution sites, habitat, behavior, population size and seasonal changes of Relict Gull. Line transects and point counts in every month were used to investigate the gulls around the Ebinur Lake. The result showed Relict Gull was summer visitor to Xinjiang, Western China. Population curve with a single peak was obtained. This gull appeared in early April and was 63 individuals (1% of the global population). The number remained stable from May to July in 2009. The discovery of fledglings indicates that Relict Gull may breed here. They left Ebinur Lake in August. Relict Gull in Ebinur Lake should belong to the Central Asian subpopulation, which was the most westerly record in China.
Abstract: The Relict Gull (Larus relictus) is recognized as a vulnerable species, with a worldwide population of about 6,000 individuals. Always inhabiting the extreme arid regions of Central Asia, their migratory routes and winter grounds are unclear. This research focused on distribution sites, habitat, behavior, population size and seasonal changes of Relict Gull. Line transects and point counts in every month were used to investigate the gulls around the Ebinur Lake. The result showed Relict Gull was summer visitor to Xinjiang, Western China. Population curve with a single peak was obtained. This gull appeared in early April and was 63 individuals (1% of the global population). The number remained stable from May to July in 2009. The discovery of fledglings indicates that Relict Gull may breed here. They left Ebinur Lake in August. Relict Gull in Ebinur Lake should belong to the Central Asian subpopulation, which was the most westerly record in China.
基金资助: Science Supporting Project of National Ministry of Science and Technology (2008BAC39B04); National Natural Science Foundation of China (30470262, 30970340)
通讯作者:
Ming MA
E-mail: maming@ms.xjb.ac.cn
引用本文:
Ming MA, Ying CHEN, Kedeerhan BAYAHEN, BaoWen HU, Fei LI, JiaQing WU, Xiang GAO, Yu MEI. Seasonal changes in the number of Relict Gull (Larus relictus) at Ebinur Lake, Western China[J]. 干旱区科学, 10.3724/SP.J.1227.2010.00151.
Ming MA, Ying CHEN, Kedeerhan BAYAHEN, BaoWen HU, Fei LI, JiaQing WU, Xiang GAO, Yu MEI. Seasonal changes in the number of Relict Gull (Larus relictus) at Ebinur Lake, Western China. Journal of Arid Land, 2010, 2(2): 151-155.
