Hurricane-driven patterns of clonality in an ecosystem engineer: the Caribbean coral Montastraea annularis.

K-selected species with low rates of sexual recruitment may utilise storage effects where low adult mortality allows a number of individuals to persist through time until a favourable recruitment period occurs. Alternative methods of recruitment may become increasingly important for such species if...

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Main Authors: Nicola L Foster, Iliana B Baums, Juan A Sanchez, Claire B Paris, Iliana Chollett, Claudia L Agudelo, Mark J A Vermeij, Peter J Mumby
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3538762?pdf=render
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spelling doaj-0ae1908fd10a4d559f64ff726ab1dd002020-11-25T01:34:35ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0181e5328310.1371/journal.pone.0053283Hurricane-driven patterns of clonality in an ecosystem engineer: the Caribbean coral Montastraea annularis.Nicola L FosterIliana B BaumsJuan A SanchezClaire B ParisIliana ChollettClaudia L AgudeloMark J A VermeijPeter J MumbyK-selected species with low rates of sexual recruitment may utilise storage effects where low adult mortality allows a number of individuals to persist through time until a favourable recruitment period occurs. Alternative methods of recruitment may become increasingly important for such species if the availability of favourable conditions for sexual recruitment decline under rising anthropogenic disturbance and climate change. Here, we test the hypotheses that asexual dispersal is an integral life history strategy not only in branching corals, as previously reported, but also in a columnar, 'K-selected' coral species, and that its prevalence is driven by the frequency of severe hurricane disturbance. Montastraea annularis is a long-lived major frame-work builder of Caribbean coral reefs but its survival is threatened by the consequences of climate induced disturbance, such as bleaching, ocean acidification and increased prevalence of disease. 700 M. annularis samples from 18 reefs within the Caribbean were genotyped using six polymorphic microsatellite loci. We demonstrate that asexual reproduction occurs at varying frequency across the species-range and significantly contributes to the local abundance of M. annularis, with its contribution increasing in areas with greater hurricane frequency. We tested several competing hypotheses that might explain the observed pattern of genotypic diversity. 64% of the variation in genotypic diversity among the sites was explained by hurricane incidence and reef slope, demonstrating that large-scale disturbances combine with local habitat characteristics to shape the balance between sexual and asexual reproduction in populations of M. annularis.http://europepmc.org/articles/PMC3538762?pdf=render
collection DOAJ
language English
format Article
sources DOAJ
author Nicola L Foster
Iliana B Baums
Juan A Sanchez
Claire B Paris
Iliana Chollett
Claudia L Agudelo
Mark J A Vermeij
Peter J Mumby
spellingShingle Nicola L Foster
Iliana B Baums
Juan A Sanchez
Claire B Paris
Iliana Chollett
Claudia L Agudelo
Mark J A Vermeij
Peter J Mumby
Hurricane-driven patterns of clonality in an ecosystem engineer: the Caribbean coral Montastraea annularis.
PLoS ONE
author_facet Nicola L Foster
Iliana B Baums
Juan A Sanchez
Claire B Paris
Iliana Chollett
Claudia L Agudelo
Mark J A Vermeij
Peter J Mumby
author_sort Nicola L Foster
title Hurricane-driven patterns of clonality in an ecosystem engineer: the Caribbean coral Montastraea annularis.
title_short Hurricane-driven patterns of clonality in an ecosystem engineer: the Caribbean coral Montastraea annularis.
title_full Hurricane-driven patterns of clonality in an ecosystem engineer: the Caribbean coral Montastraea annularis.
title_fullStr Hurricane-driven patterns of clonality in an ecosystem engineer: the Caribbean coral Montastraea annularis.
title_full_unstemmed Hurricane-driven patterns of clonality in an ecosystem engineer: the Caribbean coral Montastraea annularis.
title_sort hurricane-driven patterns of clonality in an ecosystem engineer: the caribbean coral montastraea annularis.
publisher Public Library of Science (PLoS)
series PLoS ONE
issn 1932-6203
publishDate 2013-01-01
description K-selected species with low rates of sexual recruitment may utilise storage effects where low adult mortality allows a number of individuals to persist through time until a favourable recruitment period occurs. Alternative methods of recruitment may become increasingly important for such species if the availability of favourable conditions for sexual recruitment decline under rising anthropogenic disturbance and climate change. Here, we test the hypotheses that asexual dispersal is an integral life history strategy not only in branching corals, as previously reported, but also in a columnar, 'K-selected' coral species, and that its prevalence is driven by the frequency of severe hurricane disturbance. Montastraea annularis is a long-lived major frame-work builder of Caribbean coral reefs but its survival is threatened by the consequences of climate induced disturbance, such as bleaching, ocean acidification and increased prevalence of disease. 700 M. annularis samples from 18 reefs within the Caribbean were genotyped using six polymorphic microsatellite loci. We demonstrate that asexual reproduction occurs at varying frequency across the species-range and significantly contributes to the local abundance of M. annularis, with its contribution increasing in areas with greater hurricane frequency. We tested several competing hypotheses that might explain the observed pattern of genotypic diversity. 64% of the variation in genotypic diversity among the sites was explained by hurricane incidence and reef slope, demonstrating that large-scale disturbances combine with local habitat characteristics to shape the balance between sexual and asexual reproduction in populations of M. annularis.
url http://europepmc.org/articles/PMC3538762?pdf=render
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