HABITAT AND LANDSCAPE CORRELATES OF PRESENCE, DENSITY, AND SPECIES RICHNESS OF BIRDS WINTERING IN FOREST FRAGMENTS IN OHIO

PAUL F. DOHERTY; JR; THOMAS C. GRUBB

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HABITAT AND LANDSCAPE CORRELATES OF PRESENCE, DENSITY, AND SPECIES RICHNESS OF BIRDS WINTERING IN FOREST FRAGMENTS IN OHIO

机译：俄亥俄州森林片段中鸟类越冬的栖息地和景观相关性，密度和物种丰富度

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We investigated the distribution of wintering woodland bird species in 47 very small, isolated, woodland fragments (0.54-6.01 ha) within an agricultural landscape in north-central Ohio. Our objectives were to determine correlations between temporal, habitat, and landscape variables and avian presence, density, and species richness within the smallest woodlots occupied by such species. Our results suggest that even common species are sensitive to variation in habitat, landscape, and season, Woodlot area explained the most variation in presence, density, and species richness. Shrub cover was also an important predictor variable for presence of the smallest resident birds. Shrub cover might function as both a refuge from predators and as a windbreak, reducing thermal costs in a flat, open landscape.

机译：我们调查了俄亥俄州中北部农业景观中47个非常小的，孤立的林地碎片（0.54-6.01公顷）中越冬的林地鸟类的分布。我们的目标是确定时间，栖息地和景观变量与鸟类的存在，密度和物种丰富度之间的相关性，这些空间是由该物种占据的最小林地内的。我们的研究结果表明，即使是普通物种也对生境，景观和季节的变化敏感，伍德洛特地区解释了其存在，密度和物种丰富度变化最大。灌木覆盖率也是最小的定居鸟类数量的重要预测变量。灌木覆盖物既可以作为捕食者的避难所，也可以作为防风林，从而减少平坦，开放的景观中的热成本。

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《The Wilson Bulletin》 |2000年第3期|p.388-394|共7页
作者
PAUL F. DOHERTY; JR; THOMAS C. GRUBB;
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HABITAT AND LANDSCAPE CORRELATES OF PRESENCE, DENSITY, AND SPECIES RICHNESS OF BIRDS WINTERING IN FOREST FRAGMENTS IN OHIO

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