贵州宽阔水自然保护区3种雉科鸟类的种群繁殖密度

2011年4—7月，采用录音回放和样点统计的方法，在贵州宽阔水国家级自然保护区，对3种鸡形目雉科鸟类红腹锦鸡（Chrysolophuspictus）、灰胸竹鸡（Bambusicola thoracica）和雉鸡（Phasianuscofchicus）的种群繁殖密度进行了调查．结果表明3种雉类在保护区原生林中的种群繁殖密度（占区雄鸟／km2）分别为9．05，5．54和0．92，而在次生林中则分别为15．75，8．90和4．45．3种雉类在保护区次生林中的种群繁殖密度均高于原生林，但在以往3种雉类较喜好的茶地中没有发现其繁殖．喜欢在林缘生境筑巢和不同雉类的生活史特征等因素可能是导致这一差异的主要原因，但保护区内遗弃、荒废和无人管理的茶地，已经对许多鸟类的繁殖和觅食活动产生了不利的影响．

Breeding Density of Three Phasianidae Birds in Kuankuoshui Nature Reserve, Guizhou, South-Western China

In China, primary forest is regarded as the most important habitat for conservation while regenerating forest receives less attention. In this study, playback and point count methods were used to survey the breeding densities of Golden Pheasant （Chrysolophus pictus）, Chinese Bamboo-partridge （Bambusicola thoracica） and Common Pheasant （Phasianus colchicus） in primary forest, regenerating forest and tea plantation of Kuankuoshui Nature Reserve, Guizhou, south-western China. Our results indicated that the breeding densities of these 3 Phasianidae birds in primary forest （9.05,5.54 and 0.92 male birds per km2 ） were lower than in the regenerating forest （15.75, 8.90 and 4.45 male birds per km2）. No pheasants were found to breed in the deserted tea plantations. While life-history traits and nest-site choice, e.g. forest edge effect, may account for this difference, current deserted tea plantations in the nature reserve could have a negative effect on breeding birds.