Relationships between population densities and niche-centroid distances in North American birds.,Ecology Letters

当前位置： X-MOL 学术 › Ecol. Lett. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Relationships between population densities and niche-centroid distances in North American birds.
Ecology Letters ( IF 7.6 ) Pub Date : 2020-01-15 , DOI: 10.1111/ele.13453
Luis Osorio-Olvera _{1,

2} , Carlos Yañez-Arenas ₃ , Enrique Martínez-Meyer _{4,

5} , A Townsend Peterson ₂

Affiliation

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.

中文翻译：

北美鸟类的种群密度与生态位质心距离之间的关系。

相关的生态位模型已被广泛使用和探索，以此作为估计物种的实际和潜在地理分布极限的一种手段，然而，它们在解释地理丰度模式方面的应用一直存在争议。我们根据北美繁殖鸟类调查对后一种可能性进行了详细测试。根据生态位理论的预期和丰富的生态位-中心关系，丰度与生态位-质心距离之间的相关性大多为负。负相关关系并非在物种之间随机分布：陆地，非迁徙，小体，小生境宽度和限制范围物种之间的负相关性最强。

更新日期：2020-01-16

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11