利基
生态学
丰度(生态学)
航程(航空)
环境生态位模型
生态位
人口
生态位分化
地理
宏观生态学
地理距离
生物
生物地理学
栖息地
人口学
材料科学
社会学
复合材料
作者
Luis Osorio‐Olvera,Carlos Yáñez‐Arenas,Enrique Martínez‐Meyer,A. Townsend Peterson
摘要
Abstract Correlational ecological niche models have seen intensive use and exploration as a means of estimating the limits of actual and potential geographic distributions of species, yet their application to explaining geographic abundance patterns has been debated. We developed a detailed test of this latter possibility based on the North American Breeding Bird Survey. Correlations between abundances and niche‐centroid distances were mostly negative, as per expectations of niche theory and the abundant niche‐centre relationship. The negative relationships were not distributed randomly among species: terrestrial, non‐migratory, small‐bodied, small‐niche‐breadth and restricted‐range species had the strongest negative associations. Distances to niche centroids as estimated from correlational analyses of presence‐only data thus offer a unique means by which to infer geographic abundance patterns, which otherwise are enormously difficult to characterise.
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