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Correlates of extinction proneness in tropical angiosperms

Sodhi, Navjot S., Koh, Lian Pin, S-hpeh, K., Tan, H., Chazdon, R., Corlett, R., Lee, T., Colwell, R., Brook, Barry William, Sekercioglu, C. and Bradshaw, Corey J. A. (2008). Correlates of extinction proneness in tropical angiosperms. Diversity and Distributions: a journal of conservation biogeography,14(1):1-10.

Document type: Journal Article
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IRMA ID A00003xPUB56
Title Correlates of extinction proneness in tropical angiosperms
Author Sodhi, Navjot S.
Koh, Lian Pin
S-hpeh, K.
Tan, H.
Chazdon, R.
Corlett, R.
Lee, T.
Colwell, R.
Brook, Barry William
Sekercioglu, C.
Bradshaw, Corey J. A.
Journal Name Diversity and Distributions: a journal of conservation biogeography
Publication Date 2008
Volume Number 14
Issue Number 1
ISSN 1366-9516   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-37149027819
Start Page 1
End Page 10
Total Pages 10
Place of Publication UK
Publisher Wiley-Blackwell Publishing
Field of Research 0501 - Ecological Applications
0502 - Environmental Science and Management
0602 - Ecology
HERDC Category C1 - Journal Article (DEST)
Abstract 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.
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Created: Mon, 11 May 2009, 13:39:20 CST by Sarena Wegener