Beta diversity differs among hydrothermal vent systems: Implications for conservation.

Deep-sea hydrothermal vent habitats are small, rare and support unique species through chemosynthesis. As this vulnerable ecosystem is increasingly threatened by human activities, management approaches should address biodiversity conservation. Diversity distribution data provide a useful basis for m...

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Autores principales:	Thomas N Giguère, Verena Tunnicliffe
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4b1c55332cab4b428950c8c6b7d58192
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spelling	oai:doaj.org-article:4b1c55332cab4b428950c8c6b7d581922021-12-02T20:19:31ZBeta diversity differs among hydrothermal vent systems: Implications for conservation.1932-620310.1371/journal.pone.0256637https://doaj.org/article/4b1c55332cab4b428950c8c6b7d581922021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0256637https://doaj.org/toc/1932-6203Deep-sea hydrothermal vent habitats are small, rare and support unique species through chemosynthesis. As this vulnerable ecosystem is increasingly threatened by human activities, management approaches should address biodiversity conservation. Diversity distribution data provide a useful basis for management approaches as patterns of β-diversity (the change in diversity from site to site) can guide conservation decisions. Our question is whether such patterns are similar enough across vent systems to support a conservation strategy that can be deployed regardless of location. We compile macrofaunal species occurrence data for vent systems in three geological settings in the North Pacific: volcanic arc, back-arc and mid-ocean ridge. Recent discoveries in the Mariana region provide the opportunity to characterize diversity at many vent sites. We examine the extent to which diversity distribution patterns differ among the systems by comparing pairwise β-diversity, nestedness and their additive components. A null model approach that tests whether species compositions of each site pair are more or less similar than random provides insight into community assembly processes. We resolve several taxonomic uncertainties and find that the Mariana arc and back-arc share only 8% of species despite their proximity. Species overlap, species replacement and richness differences create different diversity distributions within the three vent systems; the arc system exhibits much greater β-diversity than both the back-arc and mid-ocean ridge systems which, instead, show greater nestedness. The influence of nestedness on β-diversity also increased from the arc to back-arc to ridge. Community assembly processes appear more deterministic in the arc and ridge systems while back-arc site pairs deviate little from the null expectation. These analyses reflect the need for a variety of management strategies that consider the character of diversity distribution to protect hydrothermal vents, especially in the context of mining hydrothermal deposits.Thomas N GiguèreVerena TunnicliffePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 8, p e0256637 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Thomas N Giguère Verena Tunnicliffe Beta diversity differs among hydrothermal vent systems: Implications for conservation.
description	Deep-sea hydrothermal vent habitats are small, rare and support unique species through chemosynthesis. As this vulnerable ecosystem is increasingly threatened by human activities, management approaches should address biodiversity conservation. Diversity distribution data provide a useful basis for management approaches as patterns of β-diversity (the change in diversity from site to site) can guide conservation decisions. Our question is whether such patterns are similar enough across vent systems to support a conservation strategy that can be deployed regardless of location. We compile macrofaunal species occurrence data for vent systems in three geological settings in the North Pacific: volcanic arc, back-arc and mid-ocean ridge. Recent discoveries in the Mariana region provide the opportunity to characterize diversity at many vent sites. We examine the extent to which diversity distribution patterns differ among the systems by comparing pairwise β-diversity, nestedness and their additive components. A null model approach that tests whether species compositions of each site pair are more or less similar than random provides insight into community assembly processes. We resolve several taxonomic uncertainties and find that the Mariana arc and back-arc share only 8% of species despite their proximity. Species overlap, species replacement and richness differences create different diversity distributions within the three vent systems; the arc system exhibits much greater β-diversity than both the back-arc and mid-ocean ridge systems which, instead, show greater nestedness. The influence of nestedness on β-diversity also increased from the arc to back-arc to ridge. Community assembly processes appear more deterministic in the arc and ridge systems while back-arc site pairs deviate little from the null expectation. These analyses reflect the need for a variety of management strategies that consider the character of diversity distribution to protect hydrothermal vents, especially in the context of mining hydrothermal deposits.
format	article
author	Thomas N Giguère Verena Tunnicliffe
author_facet	Thomas N Giguère Verena Tunnicliffe
author_sort	Thomas N Giguère
title	Beta diversity differs among hydrothermal vent systems: Implications for conservation.
title_short	Beta diversity differs among hydrothermal vent systems: Implications for conservation.
title_full	Beta diversity differs among hydrothermal vent systems: Implications for conservation.
title_fullStr	Beta diversity differs among hydrothermal vent systems: Implications for conservation.
title_full_unstemmed	Beta diversity differs among hydrothermal vent systems: Implications for conservation.
title_sort	beta diversity differs among hydrothermal vent systems: implications for conservation.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/4b1c55332cab4b428950c8c6b7d58192
work_keys_str_mv	AT thomasngiguere betadiversitydiffersamonghydrothermalventsystemsimplicationsforconservation AT verenatunnicliffe betadiversitydiffersamonghydrothermalventsystemsimplicationsforconservation
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Beta diversity differs among hydrothermal vent systems: Implications for conservation.

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