Asymmetric Density Dependence Shapes Species Abundances in a Tropical Tree Community-Reference-Cited by-同舟云学术

Asymmetric Density Dependence Shapes Species Abundances in a Tropical Tree Community

Published:2010-07-16 Issue:5989 Volume:329 Page:330-332
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Comita Liza S.¹²,Muller-Landau Helene C.²³,Aguilar Salomón³,Hubbell Stephen P.³⁴

Affiliation:

1. National Center for Ecological Analysis and Synthesis, 735 State Street, Suite 300, Santa Barbara, CA 93101, USA.

2. Department of Ecology, Evolution, and Behavior, University of Minnesota, Saint Paul, MN 55108, USA.

3. Smithsonian Tropical Research Institute, Post Office Box 0843-03092, Balboa Ancón, Republic of Panamá.

4. Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA 90024, USA.

Abstract

Too Close to Home? Why are some species common while others are exceedingly rare? Attempts to answer this question have met limited success, particularly in hyperdiverse communities, such as tropical forests. Comita et al. (p. 330 , published online 24 June; see the cover) reveal a previously overlooked explanation. A large data set on seedling dynamics of 180 tree species on Barro Colorado Island, Panama, combined with Bayesian statistical techniques, revealed that species abundance is shaped by the degree to which species negatively impact their own regeneration. Rare species regenerated far less well than common species in the proximity of conspecific neighbors, suggesting a mechanism determining the relative abundances of tree species in highly diverse tropical forest communities.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference32 articles.

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3. A Renaissance in the Study of Abundance

4. Unanswered questions in ecology

5. W. E. Kunin K. J. Gaston Eds. The Biology of Rarity: Causes and Consequences of Rare-Common Differences (Chapman & Hall London 1997).

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