Please use this identifier to cite or link to this item: https://doi.org/10.1111/btp.12067
Title: Factors Affecting Tropical Tree Damage and Survival after Catastrophic Wind Disturbance
Authors: Webb, E.L. 
van de Bult, M.
Fa'aumu, S.
Webb, R.C.
Tualaulelei, A.
Carrasco, L.R. 
Keywords: Cyclone
Hurricane
Life history
Mortality
Polynesia
Resilience
Resistance
Resprout
Uproot
Issue Date: Jan-2014
Citation: Webb, E.L., van de Bult, M., Fa'aumu, S., Webb, R.C., Tualaulelei, A., Carrasco, L.R. (2014-01). Factors Affecting Tropical Tree Damage and Survival after Catastrophic Wind Disturbance. Biotropica 46 (1) : 32-41. ScholarBank@NUS Repository. https://doi.org/10.1111/btp.12067
Abstract: The structure and dynamics of cyclone-prone tropical forests are driven in part by variation in tree species resistance to and survival after wind-induced structural damage. We determined the factors associated with tree damage and 3-yr survival following Category 5 Cyclone Olaf on the Polynesian island of Ta'u, American Samoa. Despite sustaining a high rate of severe damage (34.6% of all trees snapped, 23.0% uprooted), system resilience was high with 74.3 percent stem survival overall and an annual mortality rate of 7.9 percent compared with 2.1 percent in nearby undisturbed late successional forest. Three-yr survival rate of trees sustaining severe damage was 63.1 percent, compared to about 89 percent for trees sustaining only branch loss or defoliation. Three-yr survival differed according to damage type, 78.5 percent after snapping vs. 38.4 percent after uprooting. Species differed widely in resistance to and survival after snapping and uprooting. Several species and individual traits were associated with the probability of snapping or uprooting; however, wood density was the only species trait consistently, and negatively, associated with the probability of sustaining either damage type. Survival after snapping was negatively associated with the proportion of the tree snapped off, which was determined by individual tree architecture. Species growth rate was negatively associated with survival after uprooting, indicating the importance of shade tolerance for survival after uprooting. Thus, whereas species traits seemed to exclusively underpin resistance to and survival after uprooting, they only partly accounted for snapping resistance, and did not determine the intensity of snap damage or survival after snapping. Our results highlight the importance of considering each damage type separately when considering ecological trade-offs. © 2013 The Association for Tropical Biology and Conservation.
Source Title: Biotropica
URI: http://scholarbank.nus.edu.sg/handle/10635/100662
ISSN: 00063606
DOI: 10.1111/btp.12067
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

21
checked on Dec 1, 2020

WEB OF SCIENCETM
Citations

20
checked on Dec 1, 2020

Page view(s)

86
checked on Nov 29, 2020

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.