Love thy neighbour: group properties of gaping behaviour in mussel aggregations.

By associating closely with others to form a group, an animal can benefit from a number of advantages including reduced risk of predation, amelioration of environmental conditions, and increased reproductive success, but at the price of reduced resources. Although made up of individual members, an a...

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Autores principales:	Katy R Nicastro, Gerardo I Zardi, Christopher D McQuaid, Gareth A Pearson, Ester A Serrão
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/410b6b70050942a5afdb19d7c18e1745
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spelling	oai:doaj.org-article:410b6b70050942a5afdb19d7c18e17452021-11-18T08:11:49ZLove thy neighbour: group properties of gaping behaviour in mussel aggregations.1932-620310.1371/journal.pone.0047382https://doaj.org/article/410b6b70050942a5afdb19d7c18e17452012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23091620/?tool=EBIhttps://doaj.org/toc/1932-6203By associating closely with others to form a group, an animal can benefit from a number of advantages including reduced risk of predation, amelioration of environmental conditions, and increased reproductive success, but at the price of reduced resources. Although made up of individual members, an aggregation often displays novel effects that do not manifest at the level of the individual organism. Here we show that very simple behaviour in intertidal mussels shows new effects in dense aggregations but not in isolated individuals. Perna perna and Mytilus galloprovincialis are gaping (periodic valve movement during emersion) and non-gaping mussels respectively. P. perna gaping behaviour had no effect on body temperatures of isolated individuals, while it led to increased humidity and decreased temperatures in dense groups (beds). Gaping resulted in cooler body temperatures for P. perna than M. galloprovincialis when in aggregations, while solitary individuals exhibited the highest temperatures. Gradients of increasing body temperature were detected from the center to edges of beds, but M. galloprovincialis at the edge had the same temperature as isolated individuals. Furthermore, a field study showed that during periods of severe heat stress, mortality rates of mussels within beds of the gaping P. perna were lower than those of isolated individuals or within beds of M. galloprovincialis, highlighting the determinant role of gaping on fitness and group functioning. We demonstrate that new effects of very simple individual behaviour lead to amelioration of abiotic conditions at the aggregation level and that these effects increase mussel resistance to thermal stress.Katy R NicastroGerardo I ZardiChristopher D McQuaidGareth A PearsonEster A SerrãoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 10, p e47382 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Katy R Nicastro Gerardo I Zardi Christopher D McQuaid Gareth A Pearson Ester A Serrão Love thy neighbour: group properties of gaping behaviour in mussel aggregations.
description	By associating closely with others to form a group, an animal can benefit from a number of advantages including reduced risk of predation, amelioration of environmental conditions, and increased reproductive success, but at the price of reduced resources. Although made up of individual members, an aggregation often displays novel effects that do not manifest at the level of the individual organism. Here we show that very simple behaviour in intertidal mussels shows new effects in dense aggregations but not in isolated individuals. Perna perna and Mytilus galloprovincialis are gaping (periodic valve movement during emersion) and non-gaping mussels respectively. P. perna gaping behaviour had no effect on body temperatures of isolated individuals, while it led to increased humidity and decreased temperatures in dense groups (beds). Gaping resulted in cooler body temperatures for P. perna than M. galloprovincialis when in aggregations, while solitary individuals exhibited the highest temperatures. Gradients of increasing body temperature were detected from the center to edges of beds, but M. galloprovincialis at the edge had the same temperature as isolated individuals. Furthermore, a field study showed that during periods of severe heat stress, mortality rates of mussels within beds of the gaping P. perna were lower than those of isolated individuals or within beds of M. galloprovincialis, highlighting the determinant role of gaping on fitness and group functioning. We demonstrate that new effects of very simple individual behaviour lead to amelioration of abiotic conditions at the aggregation level and that these effects increase mussel resistance to thermal stress.
format	article
author	Katy R Nicastro Gerardo I Zardi Christopher D McQuaid Gareth A Pearson Ester A Serrão
author_facet	Katy R Nicastro Gerardo I Zardi Christopher D McQuaid Gareth A Pearson Ester A Serrão
author_sort	Katy R Nicastro
title	Love thy neighbour: group properties of gaping behaviour in mussel aggregations.
title_short	Love thy neighbour: group properties of gaping behaviour in mussel aggregations.
title_full	Love thy neighbour: group properties of gaping behaviour in mussel aggregations.
title_fullStr	Love thy neighbour: group properties of gaping behaviour in mussel aggregations.
title_full_unstemmed	Love thy neighbour: group properties of gaping behaviour in mussel aggregations.
title_sort	love thy neighbour: group properties of gaping behaviour in mussel aggregations.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/410b6b70050942a5afdb19d7c18e1745
work_keys_str_mv	AT katyrnicastro lovethyneighbourgrouppropertiesofgapingbehaviourinmusselaggregations AT gerardoizardi lovethyneighbourgrouppropertiesofgapingbehaviourinmusselaggregations AT christopherdmcquaid lovethyneighbourgrouppropertiesofgapingbehaviourinmusselaggregations AT garethapearson lovethyneighbourgrouppropertiesofgapingbehaviourinmusselaggregations AT esteraserrao lovethyneighbourgrouppropertiesofgapingbehaviourinmusselaggregations
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Love thy neighbour: group properties of gaping behaviour in mussel aggregations.

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