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Ecology Letters
Article . 2015 . Peer-reviewed
License: Wiley Online Library User Agreement
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Ecology Letters
Article . 2015
HKU Scholars Hub
Article . 2015
Data sources: HKU Scholars Hub
HKU Scholars Hub
Article . 2016
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Trophic compensation reinforces resistance: herbivory absorbs the increasing effects of multiple disturbances

Authors: Ghedini, Giulia; Russell, Bayden D.; Connell, Sean D.;

Trophic compensation reinforces resistance: herbivory absorbs the increasing effects of multiple disturbances

Abstract

AbstractDisturbance often results in small changes in community structure, but the probability of transitioning to contrasting states increases when multiple disturbances combine. Nevertheless, we have limited insights into the mechanisms that stabilise communities, particularly how perturbations can be absorbed without restructuring (i.e. resistance). Here, we expand the concept of compensatory dynamics to include countervailing mechanisms that absorb disturbances through trophic interactions. By definition, ‘compensation’ occurs if a specific disturbance stimulates a proportional countervailing response that eliminates its otherwise unchecked effect. We show that the compounding effects of disturbances from local to global scales (i.e. local canopy‐loss, eutrophication, ocean acidification) increasingly promote the expansion of weedy species, but that this response is countered by a proportional increase in grazing. Finally, we explore the relatively unrecognised role of compensatory effects, which are likely to maintain the resistance of communities to disturbance more deeply than current thinking allows.

Countries
Australia, China (People's Republic of), Australia
Related Organizations
Keywords

Food Chain, Inertia, Climate Change, Gastropoda, Population Dynamics, Compensatory, Climate change, Animals, Herbivory, Ecosystem, compensatory, Stressors, Biodiversity, inertia, Eutrophication, Top-down, climate change, Kelp, top-down, stressors

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    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    118
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 1%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 1%
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
118
Top 1%
Top 10%
Top 1%