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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
A general framework for the distance-decay of similarity in ecological communities
Ecology Letters, Volume 11, No. 9, Year 2008
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Description
Species spatial turnover, or β-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. © 2008 Blackwell Publishing Ltd/CNRS.
Available Materials
https://efashare.b-cdn.net/share/pmc/articles/PMC2613237/bin/ele0011-0904-sd1.doc
Authors & Co-Authors
Morlon, Hélène
United States, Merced
Uc Merced
United States, Eugene
University of Oregon
Chuyong, George Bindeh
Cameroon, Buea
University of Buea
Condit, Richard S.
United States, Washington, D.c.
Smithsonian Tropical Research Institute
Hubbell, Stephen P.
United States, Los Angeles
University of California, Los Angeles
Kenfack, David
United States, St. Louis
Missouri Botanical Garden
Thomas, Duncan W.
United States, Corvallis
Oregon State University
Valencia, Renato L.
Ecuador, Quito
Pontificia Universidad Católica Del Ecuador
Green, Jessica L.
United States, Merced
Uc Merced
United States, Eugene
University of Oregon
Statistics
Citations: 329
Authors: 8
Affiliations: 8
Identifiers
Doi:
10.1111/j.1461-0248.2008.01202.x
ISSN:
1461023X
e-ISSN:
14610248
Study Design
Cross Sectional Study