作者: M. Kurtis Trzcinski , Lenore Fahrig , Gray Merriam
DOI: 10.1890/1051-0761(1999)009[0586:IEOFCA]2.0.CO;2
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摘要: The aims of this study were (1) to determine the relative importance independent effects forest cover and fragmentation on distribution breeding birds, (2) test hypothesis that negative effect species increases with decreasing cover, i.e., interaction distribution. birds studied in 94 landscapes, 10 × km each, ranging from 2.5% 55.8%. For each landscape, percent was measured, a index (independent cover) generated using PCA measures mean patch size, number patches, total edge. Presence 31 bird landscape determined Breeding Bird Atlas data. presenc...