Population sizes and group characteristics of Siberian Crane (Leuco-geranus leucogeranus) and Hooded Crane (Grus monacha) in Poyang Lake Wetland.
Population sizes and group characteristics of Siberian Crane (Leuco-geranus leucogeranus) and Hooded Crane (Grus monacha) in Poyang Lake Wetland.
复制标题
DOI：
10.13918/j.issn.2095-8137.2014.5.373
复制
发表时间：
2014-09
期刊：
影响因子：
--
通讯作者：
M. Shao;Hong Guo;Jianhong Jiang
中科院分区：
文献类型：
--
作者：
M. Shao;Hong Guo;Jianhong Jiang
西伯利亚鹤(Leucogeranus Leucogeranus)和白头鹤(Grus Monacha)的种群数量有限，被中国国内和国际机构视为濒危物种。为了记录它们目前的种群规模并确定它们的群体特征，我们于2012年10月至2013年4月在鄱阳湖湿地的四个自然保护区进行了实地考察。我们将鄱阳湖国家级自然保护区划分为吴城(PWC)和横峰地区(PHF)，因为每个地区都位于不同的县。野外调查表明，西伯利亚鹤主要分布在白云山湿地(364只)和南极山湿地国家级自然保护区(NJS，200只)。白头鹤主要分布在PYH区(PHF区302只，PWC区154只)。在这两个物种中，科群占总类群的50%以上，其中白头鹤组成的科群比西伯利亚鹤多。典型地，这些类群由两只成虫和两只成鸟组成，其中西伯利亚鹤和白头鹤的平均家庭规模分别为2.65±0.53(n=43)和3.09±0.86(n=47)。西伯利亚鹤和白头鹤的平均群体大小分别为28.09±24.94(n=23)和28.94±27.97(n=16)个/群，白头鹤幼体所占比例是西伯利亚鹤的两倍多。
Both the Siberian Crane (Leucogeranus leucogeranus) and Hooded Crane (Grus monacha) have limited population sizes and are considered endangered by domestic Chinese and international agencies. To document the current size of their respective populations and characterize their groups, between October 2012 and April 2013 we undertook fieldwork at four nature reserve areas within the Poyang Lake wetlands. We divided Poyanghu National Nature Reserve (PYH) into the Wucheng (PWC) and Hengfeng areas (PHF), because each are each located in different counties. Our fieldwork showed that the Siberian Crane occurred mainly in PYH (364 in the PHF, 158 in the PWC) and the Nanjishan Wetland National Nature Reserve (NJS, with 200 individuals). The Hooded Crane was mainly distributed in PYH (302 in the PHF and 154 in the PWC). Family groups accounted for more than 50% of the total number of groups among both species, with Hooded Cranes forming more family groups than Siberian Cranes. Typically, these groups were formed of two adults with one offspring (Siberian Crane), and two adults with two offspring (Hooded Crane), with the mean family group size of the Siberian Crane and Hooded Crane being respectively 2.65 ± 0.53 (n=43) and 3.09 ± 0.86 (n=47) individuals per group. The mean collective group size of the Siberian Crane and Hooded Crane included 28.09 ± 24.94 (n=23) and 28.94 ± 27.97 (n=16) individuals per group, respectively, with the proportion of juveniles among Hooded Cranes being more than double that seen among the Siberian Cranes.