Widespread variation in heat tolerance and symbiont load are associated with growth tradeoffs in the coral Acropora hyacinthus in Palau

Climate change is dramatically changing ecosystem composition and productivity, leading scientists to consider the best approaches to map natural resistance and foster ecosystem resilience in the face of these changes. Here, we present results from a large-scale experimental assessment of coral blea...

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Autores principales:	Brendan Cornwell, Katrina Armstrong, Nia S Walker, Marilla Lippert, Victor Nestor, Yimnang Golbuu, Stephen R Palumbi
Formato:	article
Lenguaje:	EN
Publicado:	eLife Sciences Publications Ltd 2021
Materias:	Acropora hyacinthus bleaching resistance fitness tradeoffs local adaptation Medicine R Science Q Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/5441fb5da4764bb6a247707eaa741aa2
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spelling	oai:doaj.org-article:5441fb5da4764bb6a247707eaa741aa22021-11-15T07:01:18ZWidespread variation in heat tolerance and symbiont load are associated with growth tradeoffs in the coral Acropora hyacinthus in Palau10.7554/eLife.647902050-084Xe64790https://doaj.org/article/5441fb5da4764bb6a247707eaa741aa22021-08-01T00:00:00Zhttps://elifesciences.org/articles/64790https://doaj.org/toc/2050-084XClimate change is dramatically changing ecosystem composition and productivity, leading scientists to consider the best approaches to map natural resistance and foster ecosystem resilience in the face of these changes. Here, we present results from a large-scale experimental assessment of coral bleaching resistance, a critical trait for coral population persistence as oceans warm, in 221 colonies of the coral Acropora hyacinthus across 37 reefs in Palau. We find that bleaching-resistant individuals inhabit most reefs but are found more often in warmer microhabitats. Our survey also found wide variation in symbiont concentration among colonies, and that colonies with lower symbiont load tended to be more bleaching-resistant. By contrast, our data show that low symbiont load comes at the cost of lower growth rate, a tradeoff that may operate widely among corals across environments. Corals with high bleaching resistance have been suggested as a source for habitat restoration or selective breeding in order to increase coral reef resilience to climate change. Our maps show where these resistant corals can be found, but the existence of tradeoffs with heat resistance may suggest caution in unilateral use of this one trait in restoration.Brendan CornwellKatrina ArmstrongNia S WalkerMarilla LippertVictor NestorYimnang GolbuuStephen R PalumbieLife Sciences Publications LtdarticleAcropora hyacinthusbleaching resistancefitness tradeoffslocal adaptationMedicineRScienceQBiology (General)QH301-705.5ENeLife, Vol 10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Acropora hyacinthus bleaching resistance fitness tradeoffs local adaptation Medicine R Science Q Biology (General) QH301-705.5
spellingShingle	Acropora hyacinthus bleaching resistance fitness tradeoffs local adaptation Medicine R Science Q Biology (General) QH301-705.5 Brendan Cornwell Katrina Armstrong Nia S Walker Marilla Lippert Victor Nestor Yimnang Golbuu Stephen R Palumbi Widespread variation in heat tolerance and symbiont load are associated with growth tradeoffs in the coral Acropora hyacinthus in Palau
description	Climate change is dramatically changing ecosystem composition and productivity, leading scientists to consider the best approaches to map natural resistance and foster ecosystem resilience in the face of these changes. Here, we present results from a large-scale experimental assessment of coral bleaching resistance, a critical trait for coral population persistence as oceans warm, in 221 colonies of the coral Acropora hyacinthus across 37 reefs in Palau. We find that bleaching-resistant individuals inhabit most reefs but are found more often in warmer microhabitats. Our survey also found wide variation in symbiont concentration among colonies, and that colonies with lower symbiont load tended to be more bleaching-resistant. By contrast, our data show that low symbiont load comes at the cost of lower growth rate, a tradeoff that may operate widely among corals across environments. Corals with high bleaching resistance have been suggested as a source for habitat restoration or selective breeding in order to increase coral reef resilience to climate change. Our maps show where these resistant corals can be found, but the existence of tradeoffs with heat resistance may suggest caution in unilateral use of this one trait in restoration.
format	article
author	Brendan Cornwell Katrina Armstrong Nia S Walker Marilla Lippert Victor Nestor Yimnang Golbuu Stephen R Palumbi
author_facet	Brendan Cornwell Katrina Armstrong Nia S Walker Marilla Lippert Victor Nestor Yimnang Golbuu Stephen R Palumbi
author_sort	Brendan Cornwell
title	Widespread variation in heat tolerance and symbiont load are associated with growth tradeoffs in the coral Acropora hyacinthus in Palau
title_short	Widespread variation in heat tolerance and symbiont load are associated with growth tradeoffs in the coral Acropora hyacinthus in Palau
title_full	Widespread variation in heat tolerance and symbiont load are associated with growth tradeoffs in the coral Acropora hyacinthus in Palau
title_fullStr	Widespread variation in heat tolerance and symbiont load are associated with growth tradeoffs in the coral Acropora hyacinthus in Palau
title_full_unstemmed	Widespread variation in heat tolerance and symbiont load are associated with growth tradeoffs in the coral Acropora hyacinthus in Palau
title_sort	widespread variation in heat tolerance and symbiont load are associated with growth tradeoffs in the coral acropora hyacinthus in palau
publisher	eLife Sciences Publications Ltd
publishDate	2021
url	https://doaj.org/article/5441fb5da4764bb6a247707eaa741aa2
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Widespread variation in heat tolerance and symbiont load are associated with growth tradeoffs in the coral Acropora hyacinthus in Palau

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