The DOI matches its Crossref record; 65 of the 65 references it cites were found in a registry or an index.
Predator diversity strengthens trophic cascades in kelp forests by modifying herbivore behaviour
Open accessAbstract
Although human‐mediated extinctions disproportionately affect higher trophic levels, the ecosystem consequences of declining diversity are best known for plants and herbivores. We combined field surveys and experimental manipulations to examine the consequences of changing predator diversity for trophic cascades in kelp forests. In field surveys we found that predator diversity was negatively correlated with herbivore abundance and positively correlated with kelp abundance. To assess whether this relationship was causal, we manipulated predator richness in kelp mesocosms, and found that decreasing predator richness increased herbivore grazing, leading to a decrease in the biomass of the giant kelp Macrocystis . The presence of different predators caused different herbivores to alter their behaviour by reducing grazing, such that total grazing was lowest at highest predator diversity. Our results suggest that declining predator diversity can have cascading effects on community structure by reducing the abundance of key habitat‐providing species.
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Cited by
The functional role of biodiversity in ecosystems: incorporating trophic complexity
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Cascading top-down effects of changing oceanic predator abundances
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Self-citation
Metadata
- Authors
- Byrnes, J., Stachowicz, J. J., Hultgren, K. M., Randall Hughes, A., Olyarnik, S. V., & Thornber, C. S.
- Venue
- Ecology Letters
- Publisher
- Wiley
- Published
- 2005-11-09
- Volume
- 9
- Issue
- 1
- Pages
- 61-71
- ISSN
- 1461-023X (ISSN-L)
- 1461-0248
- OpenAlex
- W2106224889
- Cited by
- 263
- References
- 65
- FWCI
- 13.14
- Type
- journal article
- Language
- en
- Open access
- green
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- Byrnes, J., Stachowicz, J. J., Hultgren, K. M., Randall Hughes, A., Olyarnik, S. V., & Thornber, C. S. (2006). Predator diversity strengthens trophic cascades in kelp forests by modifying herbivore behaviour. Ecology Letters. https://doi.org/10.1111/j.1461-0248.2005.00842.x
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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