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Bamboo, fire and flood: consequences of disturbance for the vegetative growth of a clumping, clonal plant

Citation

Franklin, DC and Prior, LD and Hogarth, NJ and McMahon, CR, Bamboo, fire and flood: consequences of disturbance for the vegetative growth of a clumping, clonal plant, Plant Ecology, 208, (2) pp. 319-332 . ISSN 1385-0237 (2010) [Refereed Article]


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The final publication is available at http://www.springerlink.com

DOI: doi:10.1007/s11258-009-9709-x

Abstract

The clumping growth form of tropical bamboos suggests a consolidator strategy in the face of intense competition rather than an ability to exploit disturbance. We investigated the annual growth and culm demographic responses to disturbance by fire and flood of vegetatively mature clumps of a riparian stand of Bambusa arnhemica. Linear-mixed models were employed to control for the non-independence of culm fates within clumps and clump growth among years. As the stand was monodominant and the species is gregariously monocarpic, responses can be interpreted independently of interspecific competition and trade-offs with sexual reproduction. Disturbance depressed clump growth but the culm demographic responses to fire and flood were quite different. Few culms were destroyed during the fire but damage depressed their subsequent survival, leading to declines in clump basal area. Fire also triggered the release of ramet buds, but the additional recruits were small and short-lived. Prolonged and early flooding in one of the study years depressed culm recruitment in clumps low on the lagoon bank but there was possible compensatory recruitment in the following year. There was no convincing evidence that sparse clumps recruited culms better than dense clumps, though culm recruitment was negatively correlated with culm survival. Fire and prolonged flooding are inevitable elements of the environment occupied by B. arnhemica, but we interpret the species' response as persisting in the face of disturbance rather than exploiting the opportunities created by it. © 2009 Springer Science+Business Media B.V.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Terrestrial Ecology
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Forest and Woodlands Flora, Fauna and Biodiversity
Author:Prior, LD (Dr Lynda Prior)
ID Code:72681
Year Published:2010
Web of Science® Times Cited:8
Deposited By:Research Division
Deposited On:2011-08-30
Last Modified:2011-09-30
Downloads:2 View Download Statistics

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