Mechanisms of maintenance of tropical freshwater fish communities in the face of disturbance

Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
K M Martin-SmithM G Lewis

Abstract

Community resistance to, and resilience from, perturbation will determine the trajectory of recovery from disturbance. Although selective timber extraction is considered a severe disturbance, fish communities from headwater streams around Danum Valley Field Centre, Sabah, Malaysia, showed few long-term changes in species composition or abundance. However, some species showed short-term (< 18 months) absence or decrease in abundance. These observations suggested that both resistance and resilience were important in maintaining long-term fish community structure. Resistance to perturbation was tested by monitoring fish communities before and after the creation of log-debris dams, while resilience was investigated by following the time-course of recolonization following complete removal of all fish. High community resistance was generally shown although the response was site-specific, dependent on the composition of the starting community, the size of the stream and physical habitat changes. High resilience was demonstrated in all recolonization experiments with strong correlations between pre- and post-defaunation communities, although there was a significant difference between pool and riffle habitats in the time-course of recov...Continue Reading

References

Jan 1, 1995·Advances in Space Research : the Official Journal of the Committee on Space Research (COSPAR)·K KobayashiH Yanagawa
Sep 1, 1981·Oecologia·Henk Wolda

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Citations

Apr 25, 2000·Archives of Biochemistry and Biophysics·M Saito, K Sugiyama

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