云南南涧凤凰山秋季夜间迁移鸟类多样性分析

2002年9月16日至11月28日、2003年4月6日至26日、2003年9月9日至11月26日,对云南南涧凤凰山秋季夜间迁移鸟类进行了研究。共网捕迁移鸟176种6677只,分属13目29科,其中红喉姬、红点颏、蓝歌鸲等雀形目鸟类数量优势度十分显著,表明该地迁移鸟类以雀形目等中小型鸟类为主。对网捕迁移鸟进行多样性分析,Shannon-Weaner指数为3·89,G指数为4·13,总的F指数为25·56,表明该地迁移鸟在种、属、科等分类阶元的多样性均较丰富。2002和2003年迁移鸟类多样性t检验结果表明,年间、月份间的多样性差异明显,即凤凰山迁移鸟类动态变化明显。

Diversity of Migratory Birds During Autumn Nights in Fenghuang Mountains, Nanjian County, Yunnan Province

The diversity of night migratory birds was studied in Fenghuang Mountains, Nanj ian County, Yunnan Province from 16th September to 28th November 2002, from 6th to 26th April and from 9th September to 26th November 2003. 6677 of 176 species, which belong to 29 families, 13 orders, were caught and banded. The quantity of passerines, such as Ficedula parva, Luscinia calliope, Luscinia cyane etc., is predominance and more than 59.14%, which showed that the medium or small birds such as passerines were main species in the migration spot. Shannon -Wienner diversity index, Pielou evenness index and G-F index is 3.89 , 4.13 and 25.56, respectively, which suggested that the diversity of migrator y birds species, genus and family was in a high level. T-test results indicated that birds numbers and varieties observed were significantly different in differ ent months during autumn of the year 2002 and 2003, i.e., the dynamic change o f migratory birds in Fenghuang Mountains was obvious.