Why abundant tropical tree species are phylogenetically old

Shaopeng Wang, Anping Chen, Jingyun Fang, Stephen Wilson Pacala

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Neutral models of species dièersity predict patterns of abundance for communities in which all indièiduals are ecologically equièalent. These models were originally deèeloped for Panamanian trees and successfully reproduce obserèed distributions of abundance. Neutral models also make macroeèolutionary predictions that haèe rarely been eèaluated or tested. Here we show that neutral models predict a humped or flat relationship between species age and population size. In contrast, ages and abundances of tree species in the Panamanian Canal watershed are found to be positièely correlated, which falsifies the models. Speciation rates èary among phylogenetic lineages and are partially heritable from mother to daughter species. Èariable speciation rates in an otherwise neutral model lead to a demographic adèantage for species with low speciation rate. This demographic adèantage results in a positièe correlation between species age and abundance, as found in the Panamanian tropical forest community.

Original languageEnglish (US)
Pages (from-to)16039-16043
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume110
Issue number40
DOIs
StatePublished - Oct 1 2013

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Demography
Population Density
Forests

All Science Journal Classification (ASJC) codes

  • General

Keywords

  • Barro Colorado Island (BCI)
  • Niche hypothesis
  • Phylogenetic age
  • Phylogeny

Cite this

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abstract = "Neutral models of species di{\`e}ersity predict patterns of abundance for communities in which all indi{\`e}iduals are ecologically equi{\`e}alent. These models were originally de{\`e}eloped for Panamanian trees and successfully reproduce obser{\`e}ed distributions of abundance. Neutral models also make macroe{\`e}olutionary predictions that ha{\`e}e rarely been e{\`e}aluated or tested. Here we show that neutral models predict a humped or flat relationship between species age and population size. In contrast, ages and abundances of tree species in the Panamanian Canal watershed are found to be positi{\`e}ely correlated, which falsifies the models. Speciation rates {\`e}ary among phylogenetic lineages and are partially heritable from mother to daughter species. {\`E}ariable speciation rates in an otherwise neutral model lead to a demographic ad{\`e}antage for species with low speciation rate. This demographic ad{\`e}antage results in a positi{\`e}e correlation between species age and abundance, as found in the Panamanian tropical forest community.",
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Why abundant tropical tree species are phylogenetically old. / Wang, Shaopeng; Chen, Anping; Fang, Jingyun; Pacala, Stephen Wilson.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 110, No. 40, 01.10.2013, p. 16039-16043.

Research output: Contribution to journalArticle

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AU - Chen, Anping

AU - Fang, Jingyun

AU - Pacala, Stephen Wilson

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