Enhanced susceptibility to predation in corals of compromised condition

The marine gastropod, Coralliophila abbreviata, is an obligate corallivore that causes substantial mortality in Caribbean Acropora spp. Considering the imperiled status of Acropora cervicornis and A. palmata, a better understanding of ecological interactions resulting in tissue loss may enable more...

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Main Authors: Allan J. Bright, Caitlin M. Cameron, Margaret W. Miller
Format: Article
Language:English
Published: PeerJ Inc. 2015-09-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/1239.pdf
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author Allan J. Bright
Caitlin M. Cameron
Margaret W. Miller
author_facet Allan J. Bright
Caitlin M. Cameron
Margaret W. Miller
author_sort Allan J. Bright
collection DOAJ
description The marine gastropod, Coralliophila abbreviata, is an obligate corallivore that causes substantial mortality in Caribbean Acropora spp. Considering the imperiled status of Acropora cervicornis and A. palmata, a better understanding of ecological interactions resulting in tissue loss may enable more effective conservation strategies. We examined differences in susceptibility of A. cervicornis to C. abbreviata predation based on coral tissue condition. Coral tissue condition was a strong determinant of snail prey choice, with snails preferring A. cervicornis fragments that were diseased or mechanically damaged over healthy fragments. In addition, snails always chose fragments undergoing active predation by another snail, while showing no preference for a non-feeding snail when compared with an undisturbed prey fragment. These results indicate that the condition of A. cervicornis prey influenced foraging behavior of C. abbreviata, creating a potential feedback that may exacerbate damage from predation in coral populations compromised by other types of disturbance.
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spelling doaj.art-6a440d8103ea420b87e1b8247a3630c82023-12-03T10:22:34ZengPeerJ Inc.PeerJ2167-83592015-09-013e123910.7717/peerj.1239Enhanced susceptibility to predation in corals of compromised conditionAllan J. Bright0Caitlin M. Cameron1Margaret W. Miller2Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, FL, USACooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, FL, USANational Marine Fisheries Service, Southeast Fisheries Science Center, Miami, FL, USAThe marine gastropod, Coralliophila abbreviata, is an obligate corallivore that causes substantial mortality in Caribbean Acropora spp. Considering the imperiled status of Acropora cervicornis and A. palmata, a better understanding of ecological interactions resulting in tissue loss may enable more effective conservation strategies. We examined differences in susceptibility of A. cervicornis to C. abbreviata predation based on coral tissue condition. Coral tissue condition was a strong determinant of snail prey choice, with snails preferring A. cervicornis fragments that were diseased or mechanically damaged over healthy fragments. In addition, snails always chose fragments undergoing active predation by another snail, while showing no preference for a non-feeding snail when compared with an undisturbed prey fragment. These results indicate that the condition of A. cervicornis prey influenced foraging behavior of C. abbreviata, creating a potential feedback that may exacerbate damage from predation in coral populations compromised by other types of disturbance.https://peerj.com/articles/1239.pdfCoralliophila abbreviataAcropora cervicornisFlorida KeysCoral diseaseAcroporidCorallivore
spellingShingle Allan J. Bright
Caitlin M. Cameron
Margaret W. Miller
Enhanced susceptibility to predation in corals of compromised condition
PeerJ
Coralliophila abbreviata
Acropora cervicornis
Florida Keys
Coral disease
Acroporid
Corallivore
title Enhanced susceptibility to predation in corals of compromised condition
title_full Enhanced susceptibility to predation in corals of compromised condition
title_fullStr Enhanced susceptibility to predation in corals of compromised condition
title_full_unstemmed Enhanced susceptibility to predation in corals of compromised condition
title_short Enhanced susceptibility to predation in corals of compromised condition
title_sort enhanced susceptibility to predation in corals of compromised condition
topic Coralliophila abbreviata
Acropora cervicornis
Florida Keys
Coral disease
Acroporid
Corallivore
url https://peerj.com/articles/1239.pdf
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