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Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 35, No. 5, 2014, pp. 373-379
Bioline Code: zr14046
Full paper language: English
Document type: Research Article
Document available free of charge

Zoological Research, Vol. 35, No. 5, 2014, pp. 373-379

 en Population sizes and group characteristics of Siberian Crane (Leucogeranus leucogeranus) and Hooded Crane ( Grus monacha check for this species in other resources ) in Poyang Lake Wetland
Shao, Ming-Qin; Guo, Hong & Jiang, Jian-Hong

Abstract

Both the Siberian Crane (Leucogeranus leucogeranus) and Hooded Crane ( Grus monacha check for this species in other resources ) 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.

Keywords
Siberian Crane; Hooded Crane; Group characteristics; Poyang Lake wetland

 
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