Journal article
Associational effects and indirect interactions - the dynamical effects of consumer and resource traits on generalist-resource interactions
- Abstract:
- Trophic interaction modifications occur in food webs when the direct or indirect interaction between two species is affected by a third species. These behavioral modification effects are often referred to as associational effects. Changes in focal resource availability and consumption by a generalist herbivore can affect a range of outcomes from resource exclusion to multiple resources coexisting with the focal plant species. Here, we investigate the indirect interaction between a focal and alternative resource mediated by a generalist consumer. Using theoretical approaches we analyse the conceptual link between associational effects (both resistance and susceptibility) and the theory of apparent competition and resource switching. We find that changes in focal resource traits have the potential to affect the long-term outcome of indirect interactions. Inclusion of density-dependence expands generalist life-histories and broadens the range where, through associational effects, the availability of alternative resources positively influence a focal resource. We conclude that different forms of associational effects could, in the long-term, lead to a range of indirect interaction dynamics, including apparent competition and apparent mutualism. Our work aims to connects the theoretical body of work on indirect interactions to the concepts of associational effects. The indirect interactions between multiple resources need more thorough investigation to appreciate the range of associational effects that could result from the dynamical interaction between a generalist consumers and its focal and alternative resources.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 2.0MB, Terms of use)
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- Publisher copy:
- 10.3389/fevo.2022.854222
Authors
- Publisher:
- Ecological Society of America
- Journal:
- Frontiers in Ecology and the Environment More from this journal
- Volume:
- 10
- Article number:
- 854222
- Publication date:
- 2022-07-07
- Acceptance date:
- 2022-06-17
- DOI:
- EISSN:
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1540-9295
- Language:
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English
- Keywords:
- Pubs id:
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1260757
- Local pid:
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pubs:1260757
- Deposit date:
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2022-05-24
Terms of use
- Copyright holder:
- Klapwijk and Bonsall
- Copyright date:
- 2022
- Rights statement:
- ©2022 Klapwijk and Bonsall. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
- Licence:
- CC Attribution (CC BY)
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