Herbivores as drivers of negative density dependence in tropical forest saplings

Author:

Forrister Dale L.1ORCID,Endara María-José12ORCID,Younkin Gordon C.1ORCID,Coley Phyllis D.13ORCID,Kursar Thomas A.13

Affiliation:

1. School of Biological Sciences, University of Utah, Salt Lake City, UT, USA.

2. Centro de Investigación de la Biodiversidad y Cambio Climático (BioCamb) e Ingeniería en Biodiversidad y Recursos Genéticos. Facultad de Ciencias de Medio Ambiente, Universidad Tecnológica Indoamérica, Quito, Ecuador.

3. Smithsonian Tropical Research Institute, Balboa, Ancón, Republic of Panamá.

Abstract

Herbivores shape tropical forests In tropical forests, high local tree diversity is driven by negative density dependence, a process whereby plant performance is inhibited by closely related neighbors. Negative density dependence could be caused by competition for resources among neighbors or result from shared herbivores and pathogens. Using data from forest plots in Panama, Forrister et al. compared the contributions of these mechanisms. They found no effect of competition, but strong effects of plant chemistry and shared herbivores on coexisting Inga tree species. Science , this issue p. 1213

Funder

National Science Foundation

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference69 articles.

1. R. Valencia R. Condit R. B. Foster K. Romoleroux G. V. Munoz J.-C. Svenning E. Magard M. Bass E. C. Losos H. Balslev in Forest Diversity and Dynamism: Findings from a Large-Scale Plot Network E. C. Losos E. G. Leigh Eds. (Univ. of Chicago Press 2004) pp. 609–620.

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3. Plant diversity in tropical forests: a review of mechanisms of species coexistence

4. Enemies Maintain Hyperdiverse Tropical Forests

5. W. P. Carson J. T. Anderson E. G. J. Leigh S. A. Schnitzer in Tropical Forest Community Ecology W. P. Carson S. A. Schnitzer Eds. (Wiley-Blackwell 2008) pp. 210–241.

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