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  • 171215 Franca et al_Brown-world

    Rights statement: This is the author’s version of a work that was accepted for publication in Forest Ecology and Management. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Forest Ecology and Management, 410, 2018 DOI: 10.1016/j.foreco.2017.12.027

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Selective logging effects on ‘brown world’ faecal-detritus pathway in tropical forests: A case study from Amazonia using dung beetles

Research output: Contribution to journalJournal article

Published
<mark>Journal publication date</mark>15/02/2018
<mark>Journal</mark>Forest Ecology and Management
Volume410
Number of pages8
Pages (from-to)136-143
Publication statusPublished
Early online date9/01/18
Original languageEnglish

Abstract

While a significant effort has been made to understand how human activities influence biodiversity, less attention has been given to the consequences of tropical forest disturbance on belowground functional processes and its linkages with environmental drivers. Here, we demonstrate how selective logging influenced dung beetle communities and two associated ecological processes – namely, dung consumption and incidental soil bioturbation – in the eastern Brazilian Amazon, using a robust before-and-after control-impact design. We tested hypotheses about logging-induced changes on environmental condition (canopy cover, leaf litter and soil texture), community metrics (e.g. dung beetle species richness and biomass) and beetle-mediated faecal-detritus processing; and on the importance of the environment for beetle communities and functional processes. We show that post-logging changes in canopy openness do not necessarily mediate logging impacts on dung beetle diversity and biomass, which were directly influenced by reduced impact logging (RIL) operations. Although neither environmental condition (leaf litter or soil sand content) nor faecal consumption and incidental soil bioturbation were directly affected by RIL, the relationships between environmental condition and biological components were. By showing that selective logging alters the linkages among belowground ecological processes and environmental drivers, we provide support that logged forests can retain some important functioning processes, in particular faecal consumption, even when the dung beetle diversity and biomass are impoverished. These results provide support for the resistance of functional processes to logging-induced changes in biodiversity.

Bibliographic note

This is the author’s version of a work that was accepted for publication in Forest Ecology and Management. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Forest Ecology and Management, 410, 2018 DOI: 10.1016/j.foreco.2017.12.027