Logging cuts the functional importance of invertebrates in tropical rainforest

Robert M. Ewers, and Michael J.W. Boyle, and Rosalind A. Gleave, and Nichola S. Plowman , (2015) Logging cuts the functional importance of invertebrates in tropical rainforest. Nature Communications, 6 . pp. 6836-7836.

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Official URL: Http://dx.doi.org/10.1038/ncomms7836

Abstract

Invertebrates are dominant species in primary tropical rainforests, where their abundance and diversity contributes to the functioning and resilience of these globally important ecosystems. However, more than one-third of tropical forests have been logged, with dramatic impacts on rainforest biodiversity that may disrupt key ecosystem processes. We find that the contribution of invertebrates to three ecosystem processes operating at three trophic levels (litter decomposition, seed predation and removal, and invertebrate predation) is reduced by up to one-half following logging. These changes are associated with decreased abundance of key functional groups of termites, ants, beetles and earthworms, and an increase in the abundance of small mammals, amphibians and insectivorous birds in logged relative to primary forest. Our results suggest that ecosystem processes themselves have considerable resilience to logging, but the consistent decline of invertebrate functional importance is indicative of a human-induced shift in how these ecological processes operate in tropical rainforests.

Item Type:Article
Uncontrolled Keywords:Rainforest biodiversity , ecosystem , ecological processes
Subjects:S Agriculture > SD Forestry
Divisions:FACULTY > Faculty of Science and Natural Resources
ID Code:15343
Deposited By:IR Admin
Deposited On:09 Jan 2017 08:51
Last Modified:09 Jan 2017 08:51

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