Human activity selectively impacts the ecosystem roles of parrotfishes on coral reefs

Handle URI:
http://hdl.handle.net/10754/561924
Title:
Human activity selectively impacts the ecosystem roles of parrotfishes on coral reefs
Authors:
Bellwood, David R.; Hoey, Andrew; Hughes, Terence P.
Abstract:
Around the globe, coral reefs and other marine ecosystems are increasingly overfished. Conventionally, studies of fishing impacts have focused on the population size and dynamics of targeted stocks rather than the broader ecosystem-wide effects of harvesting. Using parrotfishes as an example, we show how coral reef fish populations respond to escalating fishing pressure across the Indian and Pacific Oceans. Based on these fish abundance data, we infer the potential impact on four key functional roles performed by parrotfishes. Rates of bioerosion and coral predation are highly sensitive to human activity, whereas grazing and sediment removal are resilient to fishing. Our results offer new insights into the vulnerability and resilience of coral reefs to the ever-growing human footprint. The depletion of fishes causes differential decline of key ecosystem functions, radically changing the dynamics of coral reefs and setting the stage for future ecological surprises. © 2011 The Royal Society.
KAUST Department:
Red Sea Research Center (RSRC)
Publisher:
Royal Society, The
Journal:
Proceedings of the Royal Society B: Biological Sciences
Issue Date:
16-Nov-2011
DOI:
10.1098/rspb.2011.1906
PubMed ID:
22090383
PubMed Central ID:
PMC3282342
Type:
Article
ISSN:
09628452
Sponsors:
We thank J. Tanner, S. Wismer, J. Hodge and M. Sheaves for technical assistance, and N. Graham, M. Pratchett, J. Cinner, S. Foale and two anonymous reviewers for helpful discussions or comments on earlier drafts. This work was supported by the Australian Research Council.
Additional Links:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3282342
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorBellwood, David R.en
dc.contributor.authorHoey, Andrewen
dc.contributor.authorHughes, Terence P.en
dc.date.accessioned2015-08-03T09:34:13Zen
dc.date.available2015-08-03T09:34:13Zen
dc.date.issued2011-11-16en
dc.identifier.issn09628452en
dc.identifier.pmid22090383en
dc.identifier.doi10.1098/rspb.2011.1906en
dc.identifier.urihttp://hdl.handle.net/10754/561924en
dc.description.abstractAround the globe, coral reefs and other marine ecosystems are increasingly overfished. Conventionally, studies of fishing impacts have focused on the population size and dynamics of targeted stocks rather than the broader ecosystem-wide effects of harvesting. Using parrotfishes as an example, we show how coral reef fish populations respond to escalating fishing pressure across the Indian and Pacific Oceans. Based on these fish abundance data, we infer the potential impact on four key functional roles performed by parrotfishes. Rates of bioerosion and coral predation are highly sensitive to human activity, whereas grazing and sediment removal are resilient to fishing. Our results offer new insights into the vulnerability and resilience of coral reefs to the ever-growing human footprint. The depletion of fishes causes differential decline of key ecosystem functions, radically changing the dynamics of coral reefs and setting the stage for future ecological surprises. © 2011 The Royal Society.en
dc.description.sponsorshipWe thank J. Tanner, S. Wismer, J. Hodge and M. Sheaves for technical assistance, and N. Graham, M. Pratchett, J. Cinner, S. Foale and two anonymous reviewers for helpful discussions or comments on earlier drafts. This work was supported by the Australian Research Council.en
dc.publisherRoyal Society, Theen
dc.relation.urlhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC3282342en
dc.subjectCoral reefsen
dc.subjectEcosystem functionen
dc.subjectFishingen
dc.subjectGrazingen
dc.subjectHerbivoryen
dc.subjectResilienceen
dc.titleHuman activity selectively impacts the ecosystem roles of parrotfishes on coral reefsen
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalProceedings of the Royal Society B: Biological Sciencesen
dc.identifier.pmcidPMC3282342en
dc.contributor.institutionAustralian Research Council Centre of Excellence for Coral Reef Studies, Townsville, QLD 4811, Australiaen
dc.contributor.institutionSchool of Marine and Tropical Biology, James Cook University, Townsville, QLD 4811, Australiaen
kaust.authorHoey, Andrewen

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