Comparison of roosting habitat characteristics of two sympatric pheasants during springtime at Dazhong Mountain,southwestern China  

中国西南大中山两种同域雉类春季夜栖地特征比较(英文)

作　　者：李宁[1]  周伟[1]  李伟[1]  张庆[1]  王学荣[2] 

机构地区：[1]西南林业大学,云南省森林灾害预警与控制重点实验室,昆明,650224 [2]哀牢山国家级自然保护区南华管理局,南华,675200

出　　处：《Chinese Birds》2010年第2期132-140,共9页中国鸟类（英文版）

基　　金：financed by the Wildlife Conservation Program of the State Forestry Administration of China in 2009

摘　　要：Hume's Pheasant(Syrmaticus humiae) and the Silver Pheasant(Lophura nycthemera) are two sympatric bird species at Dazhong Mountain of Yunnan Province,southwestern China.We investigated characteristics of roosting habitats of the two pheasants from February to April,2004 in this area.Multiple statistics,Matryoshka and a habitat classification-tree were used to analyze the selection of roosting habitats of these pheasants. The results of the habitat classification-tree indicated that several separations occurred in their macro and micro roosting habitats in the study area. The two pheasants had similar crucial requirements for and selection of ecological roosting factors,which allow them to live in the same macrohabitat.Competition between these two pheasants was avoided by separation of spatial elements,such as roosting trees and topographic characteristics.For safety strategy,Hume's Pheasant adopted primarily a way of'uneasily found habitat cover plus easy escape',while the Silver Pheasant employed a unique way of'uneasily found habitat cover'.For tactics of keeping warm,Hume's Pheasant selected mainly a method of'suitable vegetation supplemented with suitable topography',while the Silver Pheasant chose a unique man-ner of'suitable vegetation'.黑颈长尾雉(Syrmaticus humiae)和白鹇(Lophura nycthemera)在中国云南的大中山呈同域分布。我们于2004年2月至4月在研究区调查这两种雉类的夜栖特征,并采用多重统计、生境套娃和栖息地分类树等方法分析它们对夜栖地的选择倾向。栖息地分类树的结果表明,在研究区内从宏生境到微生境它们的栖树有着多项分离。两种雉类对至关重要的夜栖生态因子的需求和选择基本相同,这使它们能生活在相同的宏生境中。而空间要素,如栖树和地形特征的分离又避免了黑颈长尾雉和白鹇之间的竞争。就安全需求策略而言,黑颈长尾雉采用了'栖境隐蔽–易于逃逸型'的基本方法;而白鹇夜栖采用了'栖境隐蔽型'的方法。对于保温策略来说,黑颈长尾雉主要选择'适合植被环境–地形辅助型'方式,而白鹇选择了独特的'适合植被环境型'方式。

关 键 词：Syrmaticus humiae Lophura nycthemera SYMPATRY roosting habitat selection 

分 类 号：Q958[生物学—动物学]