官山白颈长尾雉活动区域海拔高度的季节变化及其影响因素

Seasonal change in ranging of Elliot's pheasant and its determining factors in Guanshan National Nature Reserve,Jiangxi

2005年7月至2006年12月,采用无线电遥测的方法在江西官山国家级自然保护区内对5只白颈长尾雉(Syrmaticus ellioti)的活动区域进行了跟踪监测,结合GIS技术和样方法分析其活动区域的海拔高度随季节变化的影响因素。结果表明:海拔400-600m为白颈长尾雉全年最适活动带,其主要活动区域的海拔高度呈现明显的季节变化:夏秋季最高,春季次之,冬季最低。水源是其冬季喜欢在低海拔区域活动的最主要原因;而距林缘距离、灌木数量、灌木种数、灌木盖度等与增加食物丰富度和隐蔽度相关的因子是促使它们在春季和夏秋季倾向于在高海拔区域活动的主要因素。

From July 2005 to December 2006, to study the seasonal change in ranging of Elliot＇s pheasants, we tracked five individuals using radio-tracking and GPS in Guanshan National Nature Reserve of Jiangxi Province. The results showed that Elliot＇s pheasant occurred at altitudes between 400 and 600 m all the year, but the altitude of their home range varied with seasons： highest in summer and autumn, lower in spring and lowest in winter. The most likely reason that Elliot＇s pheasants preferred to live at lower altitude in winter is to have access to water sources. In spring, summer and autumn, they tended to appear at higher altitude, cor- related with the distance to forest edge, abundance of shrubs, their species richness and coverage, and ultimately related to the abundance of food and shelter.