张广才岭北部山地次生林树栖食虫鸟类资源分割的研究

各集团之间的取食行为比较表明，它们在取食行为上的分离导致在一定程度上分割了这一环境中资源空间。有些集团（如树干一侧干凿取一拾取集团）的取食行为表现为有较大的宽度，以更为广泛的方式利用环境资源，而有些集团表现为特化，这种类型集团所包含的物种一般比较少。研究表明，在构成东北山地次生林树栖食虫鸟类群落时，关键因素是物种之间的资源利用关系。

The Study on Resource Partition of Arboreal Insectivorous Birds of Montane Second Deciduous Forest in Northern Zang Guangchai Montains

his study is based on our study(1993) about guild structure. Comparison of fooding behavior among guilds showed that their segregation of fooding behavior lead to partition of recourse space.Fooding behavior some guilds(e.g.Guild of probe-gleaning on trunk or branch) has larger niche breadth,this indicated they utilized resource space with more widespread pattern.Some guilds showed they have more narrow niche breadth,they only used little part of resource,but they generally developed new fooding space.These guilds have less species.This study showed that resource utilization among species is key factor in constructuring arboreal bird community of montane second deciduous forest.