Treefalls and the Distribution of Understory Birds in a Tropical Forest
作者： Douglas W. Schemske , Nicholas Brokaw
DOI: 10.2307/1936992
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摘要: Monthly mist—net censuses were conducted in central Panama to contrast the species richness and composition of understory avifauna treefall gaps that adjacent, intact forest. We compiled 826 captures 73 over a 9—mo period. Species was greater than forest (66 vs. 53 species), but capture rates nearly identical (gap, 409; forest, 417). Of 31 with adequate sample sizes, 5 displayed significant habitat preference (P ° .05): 3 2 Ordination all nets by Bray—Curtis analysis indicates gap bird assemblages are quite distinct. suggest contribute structural heterogeneity influence community. See full-text article at JSTOR
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