期刊
ECOLOGY LETTERS
卷 11, 期 9, 页码 904-917出版社
WILEY
DOI: 10.1111/j.1461-0248.2008.01202.x
关键词
beta-diversity; distance-decay relationship; Poisson Cluster Process; sampling biodiversity; Sorensen index; spatial aggregation; spatial turnover; species-abundance distribution; species-area relationship; tropical forests
类别
资金
- National Science Foundation
Species spatial turnover, or beta-diversity, induces a decay of community similarity with geographic distance known as the distance-decay relationship. Although this relationship is central to biodiversity and biogeography, its theoretical underpinnings remain poorly understood. Here, we develop a general framework to describe how the distance-decay relationship is influenced by population aggregation and the landscape-scale species-abundance distribution. We utilize this general framework and data from three tropical forests to show that rare species have a weak influence on distance-decay curves, and that overall similarity and rates of decay are primarily influenced by species abundances and population aggregation respectively. We illustrate the utility of the framework by deriving an exact analytical expression of the distance-decay relationship when population aggregation is characterized by the Poisson Cluster Process. Our study provides a foundation for understanding the distance-decay relationship, and for predicting and testing patterns of beta-diversity under competing theories in ecology.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据