Disentangling trophic interactions inside a Caribbean marine reserve

dc.contributor.author Kellner, Julie B.
dc.contributor.author Litvin, Steven Y.
dc.contributor.author Hastings, Alan
dc.contributor.author Micheli, Fiorenza
dc.contributor.author Mumby, Peter J.
dc.date.accessioned 2011-07-14T18:57:45Z
dc.date.available 2011-07-14T18:57:45Z
dc.date.issued 2010-10
dc.description Author Posting. © Ecological Society of America, 2010. This article is posted here by permission of Ecological Society of America for personal use, not for redistribution. The definitive version was published in Ecological Applications 20 (2010): 1979–1992, doi:10.1890/09-1217.1. en_US
dc.description.abstract Recent empirical studies have demonstrated that human activities such as fishing can strongly affect the natural capital and services provided by tropical seascapes. However, policies to mitigate anthropogenic impacts can also alter food web structure and interactions, regardless of whether the regulations are aimed at single or multiple species, with possible unexpected consequences for the ecosystems and their associated services. Complex community response to management interventions have been highlighted in the Caribbean, where, contrary to predictions from linear food chain models, a reduction in fishing intensity through the establishment of a marine reserve has led to greater biomass of herbivorous fish inside the reserve, despite an increased abundance of large predatory piscivores. This positive multi-trophic response, where both predators and prey benefit from protection, highlights the need to take an integrated approach that considers how numerous factors control species coexistence in both fished and unfished systems. In order to understand these complex relationships, we developed a general model to examine the trade-offs between fishing pressure and trophic control on reef fish communities, including an exploration of top-down and bottom-up effects. We then validated the general model predictions by parameterizing the model for a reef system in the Bahamas in order to tease apart the wide range of species responses to reserves in the Caribbean. Combining the development of general theory and site-specific models parameterized with field data reveals the underlying driving forces in these communities and enables us to make better predictions about possible population and community responses to different management schemes. en_US
dc.description.sponsorship This work was supported by funding from the Bahamas Biocomplexity Project (U.S. NSF Biocomplexity grant OCE-0119976) and U.S. EPA Science to Achieve Results (R832223). en_US
dc.format.mimetype application/pdf
dc.identifier.citation Ecological Applications 20 (2010): 1979–1992 en_US
dc.identifier.doi 10.1890/09-1217.1
dc.identifier.uri https://hdl.handle.net/1912/4689
dc.language.iso en_US en_US
dc.publisher Ecological Society of America en_US
dc.relation.uri https://doi.org/10.1890/09-1217.1
dc.subject Bottom-up en_US
dc.subject Coral reef en_US
dc.subject Ecosystem-based management en_US
dc.subject Exuma Cays Land and Sea Park en_US
dc.subject Bahamas en_US
dc.subject Fishing pressure en_US
dc.subject Generalist predator en_US
dc.subject Marine protected areas en_US
dc.subject Nassau grouper (Epinephelus striatus) en_US
dc.subject Stoplight parrotfish (Sparisoma viride) en_US
dc.subject Top-down en_US
dc.subject Trophic cascades en_US
dc.subject Yellowtail snapper (Ocyurus chrysurus) en_US
dc.title Disentangling trophic interactions inside a Caribbean marine reserve en_US
dc.type Article en_US
dspace.entity.type Publication
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