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Logged tropical forests have amplified and diverse ecosystem energetics

Abstract:
Old-growth tropical forests are widely recognized as being immensely important for their biodiversity and high biomass1. Conversely, logged tropical forests are usually characterized as degraded ecosystems2. However, whether logging results in a degradation in ecosystem functions is less clear: shifts in the strength and resilience of key ecosystem processes in large suites of species have rarely been assessed in an ecologically integrated and quantitative framework. Here we adopt an ecosystem energetics lens to gain new insight into the impacts of tropical forest disturbance on a key integrative aspect of ecological function: food pathways and community structure of birds and mammals. We focus on a gradient spanning old-growth and logged forests and oil palm plantations in Borneo. In logged forest there is a 2.5-fold increase in total resource consumption by both birds and mammals compared to that in old-growth forests, probably driven by greater resource accessibility and vegetation palatability. Most principal energetic pathways maintain high species diversity and redundancy, implying maintained resilience. Conversion of logged forest into oil palm plantation results in the collapse of most energetic pathways. Far from being degraded ecosystems, even heavily logged forests can be vibrant and diverse ecosystems with enhanced levels of ecological function.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1038/s41586-022-05523-1

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Institution:
University of Oxford
Division:
SSD
Department:
SOGE
Sub department:
Geography
Oxford college:
Oriel College
Role:
Author
ORCID:
0000-0002-3503-4783
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Role:
Author
ORCID:
0000-0001-8258-3534
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Role:
Author
ORCID:
0000-0001-8826-4868


Publisher:
Springer Nature
Journal:
Nature More from this journal
Volume:
612
Issue:
7941
Pages:
707-713
Publication date:
2022-12-14
Acceptance date:
2022-11-03
DOI:
EISSN:
1476-4687
ISSN:
0028-0836
Pmid:
36517596


Language:
English
Keywords:
Pubs id:
1317213
Local pid:
pubs:1317213
Deposit date:
2023-11-01

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