Correlates of extinction proneness in tropical angiosperms

N S Sodhi; L P Koh; K S H Peh; H T W Tan; Robin L Chazdon; R T Corlett; Tien Ming Lee; R K Colwell; B W Brook; C H Sekercioglu; C J A Bradshaw

doi:10.1111/j.1472-4642.2007.00398.x

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Correlates of extinction proneness in tropical angiosperms

Journal article

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Correlates of extinction proneness in tropical angiosperms

N S Sodhi, L P Koh, K S H Peh, H T W Tan, Robin L Chazdon, R T Corlett, Tien Ming Lee, R K Colwell, B W Brook, C H Sekercioglu, …

Diversity and Distributions, Vol.14(1), pp.1-10

2008

DOI: https://doi.org/10.1111/j.1472-4642.2007.00398.x

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Abstract

conservation

extinction risk

generalized linear mixed-effects models

life history

phylogenetic control

selectivity

species traits

tropical biotas

vulnerability

Rapid losses and degradation of natural habitats in the tropics are driving catastrophic declines and extinctions of native biotas, including angiosperms. Determining the ecological and life-history correlates of extinction proneness in tropical plant species may help reveal the mechanisms underlying their responses to habitat disturbance, and assist in the pre-emptive identification of species at risk from extinction. We determined the predictors of extinction proneness in 1884 locally extinct (n = 454) and extant (n = 1430) terrestrial angiosperms (belonging to 43 orders, 133 families, and 689 genera) in the tropical island nation of Singapore (699.4 km2), which has lost 99.6% of its primary lowland evergreen rainforest since 1819. A wide variety of traits such as geographical distribution, pollination system, sexual system, habit, habitat, height, fruit/seed dispersal mechanism, and capacity for vegetative re-sprouting were used in the analysis. Despite controlling for phylogeny (as approximated by family level classification), we found that only a small percentage of the variation in the extinction probability could be explained by these factors. Epiphytic, monoecious, and hermaphroditic species and those restricted to inland forests have higher probabilities of extinction. Species dependent on mammal pollinators also probably have higher extinction probabilities. More comparative studies that use species traits to identify extinction-prone plant species are needed to guide the enormous, but essential task of identifying species most in need of conservation action. © 2007 The Authors.

Details

Title: Correlates of extinction proneness in tropical angiosperms
Authors: N S Sodhi (Author) - National University of Singapore, Singapore
L P Koh (Author) - Princeton University, United States
K S H Peh (Author) - University of Leeds, United Kingdom
H T W Tan (Author) - National University of Singapore, Singapore
Robin L Chazdon (Author) - University of Connecticut, United States
R T Corlett (Author) - University of Hong Kong, Hong Kong
Tien Ming Lee (Author) - University of California, United States
R K Colwell (Author) - University of Connecticut, United States
B W Brook (Author) - Charles Darwin University
C H Sekercioglu (Author) - Stanford University, United States
C J A Bradshaw (Author) - Charles Darwin University
Publication details: Diversity and Distributions, Vol.14(1), pp.1-10
Publisher: Wiley-Blackwell Publishing Ltd.
Date published: 2008
DOI: 10.1111/j.1472-4642.2007.00398.x
ISSN: 1366-9516
Organisation Unit: Tropical Forests and People Research Centre; University of the Sunshine Coast, Queensland; Forest Research Institute
Language: English
Record Identifier: 99450514202621
Output Type: Journal article

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Web Of Science research areas: Biodiversity Conservation; Ecology

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