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The combined impacts of experimental defaunation and logging on seedling traits and diversity

Animals can have both positive (e.g. via seed dispersal) and negative (e.g. via herbivory) impacts on plants. The net effects of these interactions remain difficult to predict and may be affected by overhunting and habitat disturbance, two widespread threats to tropical forests. Recent studies have...

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Main Authors: Alys Granados, Henry Bernard, Jedediah F. Brodie
Format: Article
Language:English
English
Published: 2018
Subjects:
Q Science (General)
Online Access:https://eprints.ums.edu.my/id/eprint/25855/1/The%20combined%20impacts%20of%20experimental%20defaunation%20and%20logging%20on%20seedling%20traits%20and%20diversity.pdf
https://eprints.ums.edu.my/id/eprint/25855/2/The%20combined%20impacts%20of%20experimental%20defaunation%20and%20logging%20on%20seedling%20traits%20and%20diversity1.pdf
https://eprints.ums.edu.my/id/eprint/25855/
http://dx.doi.org/10.1098/rspb.2017.2882
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spelling my.ums.eprints.258552021-04-13T14:00:50Z https://eprints.ums.edu.my/id/eprint/25855/ The combined impacts of experimental defaunation and logging on seedling traits and diversity Alys Granados Henry Bernard Jedediah F. Brodie Q Science (General) Animals can have both positive (e.g. via seed dispersal) and negative (e.g. via herbivory) impacts on plants. The net effects of these interactions remain difficult to predict and may be affected by overhunting and habitat disturbance, two widespread threats to tropical forests. Recent studies have documented their separate effects on plant recruitment but our understanding of how defaunation and logging interact to influence tropical tree communities is limited. From 2013 to 2016, we followed the fate of marked tree seedlings (n ¼ 1489) from 81 genera in and outside experimental plots. Our plots differentially excluded small, medium and large-bodied mammal herbivores in logged and unlogged forest in Malaysian Borneo. We assessed the effects of experimental defaunation and logging on taxonomic diversity and plant trait (wood density, specific leaf area, fruit size) composition of seedling communities. Although seedling mortality was highest in the presence of all mammal herbivores (44%), defaunation alone did not alter taxonomic diversity nor plant trait composition. However, herbivores (across all body sizes) significantly reduced mean fruit size across the seedling community over time (95% confidence interval (CI): 20.09 to 20.01), particularly in logged forest (95% CI: 20.12 to 20.003). Our findings suggest that impacts of mammal herbivores on plant communities may be greater in forests with a history of disturbance and could subsequently affect plant functional traits and ecological processes associated with forest regeneration. 2018 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/25855/1/The%20combined%20impacts%20of%20experimental%20defaunation%20and%20logging%20on%20seedling%20traits%20and%20diversity.pdf text en https://eprints.ums.edu.my/id/eprint/25855/2/The%20combined%20impacts%20of%20experimental%20defaunation%20and%20logging%20on%20seedling%20traits%20and%20diversity1.pdf Alys Granados and Henry Bernard and Jedediah F. Brodie (2018) The combined impacts of experimental defaunation and logging on seedling traits and diversity. Proceeding of the Royal Society B: Biological Sciences, 285 (1873). pp. 1-6. ISSN 1471-2954 http://dx.doi.org/10.1098/rspb.2017.2882
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic Q Science (General)
spellingShingle Q Science (General)
Alys Granados
Henry Bernard
Jedediah F. Brodie
The combined impacts of experimental defaunation and logging on seedling traits and diversity
description Animals can have both positive (e.g. via seed dispersal) and negative (e.g. via herbivory) impacts on plants. The net effects of these interactions remain difficult to predict and may be affected by overhunting and habitat disturbance, two widespread threats to tropical forests. Recent studies have documented their separate effects on plant recruitment but our understanding of how defaunation and logging interact to influence tropical tree communities is limited. From 2013 to 2016, we followed the fate of marked tree seedlings (n ¼ 1489) from 81 genera in and outside experimental plots. Our plots differentially excluded small, medium and large-bodied mammal herbivores in logged and unlogged forest in Malaysian Borneo. We assessed the effects of experimental defaunation and logging on taxonomic diversity and plant trait (wood density, specific leaf area, fruit size) composition of seedling communities. Although seedling mortality was highest in the presence of all mammal herbivores (44%), defaunation alone did not alter taxonomic diversity nor plant trait composition. However, herbivores (across all body sizes) significantly reduced mean fruit size across the seedling community over time (95% confidence interval (CI): 20.09 to 20.01), particularly in logged forest (95% CI: 20.12 to 20.003). Our findings suggest that impacts of mammal herbivores on plant communities may be greater in forests with a history of disturbance and could subsequently affect plant functional traits and ecological processes associated with forest regeneration.
format Article
author Alys Granados
Henry Bernard
Jedediah F. Brodie
author_facet Alys Granados
Henry Bernard
Jedediah F. Brodie
author_sort Alys Granados
title The combined impacts of experimental defaunation and logging on seedling traits and diversity
title_short The combined impacts of experimental defaunation and logging on seedling traits and diversity
title_full The combined impacts of experimental defaunation and logging on seedling traits and diversity
title_fullStr The combined impacts of experimental defaunation and logging on seedling traits and diversity
title_full_unstemmed The combined impacts of experimental defaunation and logging on seedling traits and diversity
title_sort combined impacts of experimental defaunation and logging on seedling traits and diversity
publishDate 2018
url https://eprints.ums.edu.my/id/eprint/25855/1/The%20combined%20impacts%20of%20experimental%20defaunation%20and%20logging%20on%20seedling%20traits%20and%20diversity.pdf
https://eprints.ums.edu.my/id/eprint/25855/2/The%20combined%20impacts%20of%20experimental%20defaunation%20and%20logging%20on%20seedling%20traits%20and%20diversity1.pdf
https://eprints.ums.edu.my/id/eprint/25855/
http://dx.doi.org/10.1098/rspb.2017.2882
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score 13.211869

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