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The ecological role of sharks on coral reefs
journal contribution
posted on 2023-05-20, 21:13 authored by Roff, G, Doropoulos, C, Rogers, A, Bozec, Y-M, Nils KrueckNils Krueck, Aurellado, E, Priest, M, Birrell, C, Mumby, PJSharks are considered the apex predator of coral reefs, but the consequences of their global depletion are uncertain. Here we explore the ecological roles of sharks on coral reefs and, conversely, the importance of reefs for sharks. We find that most reef-associated shark species do not act as apex predators but instead function as mesopredators along with a diverse group of reef fish. While sharks perform important direct and indirect ecological roles, the evidence to support hypothesised shark-driven trophic cascades that benefit corals is weak and equivocal. Coral reefs provide some functional benefits to sharks, but sharks do not appear to favour healthier reef environments. Restoring populations of sharks is important and can yet deliver ecological surprise.
History
Publication title
Trends in Ecology and EvolutionVolume
31Issue
5Pagination
395-407ISSN
0169-5347Department/School
Institute for Marine and Antarctic StudiesPublisher
Elsevier Science LondonPlace of publication
84 Theobalds Rd, London, England, Wc1X 8RrRights statement
Copyright 2016 Elsevier Ltd.Repository Status
- Restricted