Please use this identifier to cite or link to this item: https://doi.org/10.1111/j.1365-2699.2011.02505.x
Title: Frequent, low-amplitude disturbances drive high tree turnover rates on a remote, cyclone-prone Polynesian island
Authors: Webb, E.L. 
Seamon, J.O.
Fa'aumu, S.
Keywords: American Samoa
Community composition
Growth
Hurricane
Life history
Mortality
Recruitment
South Pacific
Tropical forest dynamics
Wood density
Issue Date: Jul-2011
Citation: Webb, E.L., Seamon, J.O., Fa'aumu, S. (2011-07). Frequent, low-amplitude disturbances drive high tree turnover rates on a remote, cyclone-prone Polynesian island. Journal of Biogeography 38 (7) : 1240-1252. ScholarBank@NUS Repository. https://doi.org/10.1111/j.1365-2699.2011.02505.x
Abstract: Aim How important are frequent, low-intensity disturbances to tree community dynamics of a cyclone-prone forest? We tested the following hypotheses concerning the 'inter-cataclysm' period on a remote Polynesian island: (1) tree turnover would be high and recruitment rates would be significantly higher than mortality; (2) low-intensity disturbance would result in a marginal increase in tree mortality in the short term; (3) turnover would vary among species and would be associated with plant traits linked to differences in life history; and (4) mortality and recruitment events would be spatially non-random. Location Tutuila, a volcanic island in the Samoan Archipelago, Polynesia. Methods We censused the tree (stem diameter ≥10cm) community in 3.9ha of tropical forest three times over a 10-year period, 1998-2008. We calculated annual mortality, recruitment and turnover rates for 36 tree species. We tested for non-random spatial patterns and predictors of mortality, and non-random spatial patterns of tree recruitment. A 2004 cyclone passing within 400km allowed us to measure the effects of a non-cataclysmic disturbance on vital rates. Results Annual turnover was 2.8% and annual recruitment was 3.6%; these are some of the highest rates in the tropics, and likely to be a response to a cyclone that passed
Source Title: Journal of Biogeography
URI: http://scholarbank.nus.edu.sg/handle/10635/100712
ISSN: 03050270
DOI: 10.1111/j.1365-2699.2011.02505.x
Appears in Collections:Staff Publications

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

SCOPUSTM   
Citations

16
checked on May 27, 2020

WEB OF SCIENCETM
Citations

13
checked on May 18, 2020

Page view(s)

77
checked on May 10, 2020

Google ScholarTM

Check

Altmetric


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