摘要
在小五台山自然保护区西台，通过路线调查法研究了该地区夏季鸟类群落的物种多样性及群落间的相似性，并对鸟类群落的物种多样性随空间的变化模式及物种生态位的关系进行了分析。结果表明，该地区不同鸟类群落物种多样性的排列顺序为：针阔混交林＞阔叶林＞针叶林＞溪涧＞灌丛＞亚高山草甸＞亚高山灌丛。鸟类的物种多样性随栖位而变化，并在不同的鸟类群落中表现出不同的模式。群落物种多样性随着生态位重叠的增大而减小。
Studies were conducted in Xitai,Xiaowutai Mountains in summer of 1993, Re-sults showed that bird communities were ranked in order of species diversity as follow: decid-uous coniferous forest >deciduous forest > coniferous forest > broook valley>bush>subapline meadow > subalpine bush。 The species diversities were changed with different perching positions in various bird communities with increasing of the niches overlaped,the species diversities decreased accordingly。
