Genetic connectivity among and self-replenishment within island populations of a restricted range subtropical reef fish.

Marine protected areas (MPAs) are increasingly being advocated and implemented to protect biodiversity on coral reefs. Networks of appropriately sized and spaced reserves can capture a high proportion of species diversity, with gene flow among reserves presumed to promote long term resilience of pop...

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Autores principales:	Martin H van der Meer, Jean-Paul A Hobbs, Geoffrey P Jones, Lynne van Herwerden
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f4fedc9f514f4d2a9fcdf0f46ec66855
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spelling	oai:doaj.org-article:f4fedc9f514f4d2a9fcdf0f46ec668552021-11-18T08:07:57ZGenetic connectivity among and self-replenishment within island populations of a restricted range subtropical reef fish.1932-620310.1371/journal.pone.0049660https://doaj.org/article/f4fedc9f514f4d2a9fcdf0f46ec668552012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23185398/?tool=EBIhttps://doaj.org/toc/1932-6203Marine protected areas (MPAs) are increasingly being advocated and implemented to protect biodiversity on coral reefs. Networks of appropriately sized and spaced reserves can capture a high proportion of species diversity, with gene flow among reserves presumed to promote long term resilience of populations to spatially variable threats. However, numerically rare small range species distributed among isolated locations appear to be at particular risk of extinction and the likely benefits of MPA networks are uncertain. Here we use mitochondrial and microsatellite data to infer evolutionary and contemporary gene flow among isolated locations as well as levels of self-replenishment within locations of the endemic anemonefish Amphiprion mccullochi, restricted to three MPA offshore reefs in subtropical East Australia. We infer high levels of gene flow and genetic diversity among locations over evolutionary time, but limited contemporary gene flow amongst locations and high levels of self-replenishment (68 to 84%) within locations over contemporary time. While long distance dispersal explained the species' integrity in the past, high levels of self-replenishment suggest locations are predominantly maintained by local replenishment. Should local extinction occur, contemporary rescue effects through large scale connectivity are unlikely. For isolated islands with large numbers of endemic species, and high local replenishment, there is a high premium on local species-specific management actions.Martin H van der MeerJean-Paul A HobbsGeoffrey P JonesLynne van HerwerdenPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 11, p e49660 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Martin H van der Meer Jean-Paul A Hobbs Geoffrey P Jones Lynne van Herwerden Genetic connectivity among and self-replenishment within island populations of a restricted range subtropical reef fish.
description	Marine protected areas (MPAs) are increasingly being advocated and implemented to protect biodiversity on coral reefs. Networks of appropriately sized and spaced reserves can capture a high proportion of species diversity, with gene flow among reserves presumed to promote long term resilience of populations to spatially variable threats. However, numerically rare small range species distributed among isolated locations appear to be at particular risk of extinction and the likely benefits of MPA networks are uncertain. Here we use mitochondrial and microsatellite data to infer evolutionary and contemporary gene flow among isolated locations as well as levels of self-replenishment within locations of the endemic anemonefish Amphiprion mccullochi, restricted to three MPA offshore reefs in subtropical East Australia. We infer high levels of gene flow and genetic diversity among locations over evolutionary time, but limited contemporary gene flow amongst locations and high levels of self-replenishment (68 to 84%) within locations over contemporary time. While long distance dispersal explained the species' integrity in the past, high levels of self-replenishment suggest locations are predominantly maintained by local replenishment. Should local extinction occur, contemporary rescue effects through large scale connectivity are unlikely. For isolated islands with large numbers of endemic species, and high local replenishment, there is a high premium on local species-specific management actions.
format	article
author	Martin H van der Meer Jean-Paul A Hobbs Geoffrey P Jones Lynne van Herwerden
author_facet	Martin H van der Meer Jean-Paul A Hobbs Geoffrey P Jones Lynne van Herwerden
author_sort	Martin H van der Meer
title	Genetic connectivity among and self-replenishment within island populations of a restricted range subtropical reef fish.
title_short	Genetic connectivity among and self-replenishment within island populations of a restricted range subtropical reef fish.
title_full	Genetic connectivity among and self-replenishment within island populations of a restricted range subtropical reef fish.
title_fullStr	Genetic connectivity among and self-replenishment within island populations of a restricted range subtropical reef fish.
title_full_unstemmed	Genetic connectivity among and self-replenishment within island populations of a restricted range subtropical reef fish.
title_sort	genetic connectivity among and self-replenishment within island populations of a restricted range subtropical reef fish.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/f4fedc9f514f4d2a9fcdf0f46ec66855
work_keys_str_mv	AT martinhvandermeer geneticconnectivityamongandselfreplenishmentwithinislandpopulationsofarestrictedrangesubtropicalreeffish AT jeanpaulahobbs geneticconnectivityamongandselfreplenishmentwithinislandpopulationsofarestrictedrangesubtropicalreeffish AT geoffreypjones geneticconnectivityamongandselfreplenishmentwithinislandpopulationsofarestrictedrangesubtropicalreeffish AT lynnevanherwerden geneticconnectivityamongandselfreplenishmentwithinislandpopulationsofarestrictedrangesubtropicalreeffish
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Genetic connectivity among and self-replenishment within island populations of a restricted range subtropical reef fish.

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