Behavioral Attributes of Social Groups Determine the Strength and Direction of Selection on Neural Investment

The evolution of social systems can place novel selective forces on investment in expensive neural tissue by changing cognitive demands. Previous hypotheses about the impact of sociality on neural investment have received equivocal support when tested across diverse taxonomic groups and social struc...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Virginia Caponera, Leticia Avilés, Meghan Barrett, Sean O’Donnell
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	neuroecology social behavior social brain evolution social spiders distributed cognition hypothesis Evolution QH359-425 Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/cff19717b5d34280b69c07c0a1ac8b12
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:cff19717b5d34280b69c07c0a1ac8b12
record_format	dspace
spelling	oai:doaj.org-article:cff19717b5d34280b69c07c0a1ac8b122021-11-18T09:48:29ZBehavioral Attributes of Social Groups Determine the Strength and Direction of Selection on Neural Investment2296-701X10.3389/fevo.2021.733228https://doaj.org/article/cff19717b5d34280b69c07c0a1ac8b122021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fevo.2021.733228/fullhttps://doaj.org/toc/2296-701XThe evolution of social systems can place novel selective forces on investment in expensive neural tissue by changing cognitive demands. Previous hypotheses about the impact of sociality on neural investment have received equivocal support when tested across diverse taxonomic groups and social structures. We suggest previous models for social behavior-brain relationships have overlooked important variation in social groups. Social groups vary significantly in structure and function, and the specific attributes of a social group may be more relevant to setting cognitive demands than sociality in general. We have identified intragroup competition, relationship differentiation, information sharing, dominance hierarchies, and task specialization and redundancy as attributes of social behavior which may impact selection for neural investment, and outline how variation in these attributes can result in increased or decreased neural investment with transitions to sociality in different taxa. Finally, we test some of the predictions generated using this framework in a phylogenetic comparison of neural tissue investment in Anelosimus social spiders. Social Anelosimus spiders engage in cooperative prey capture and brood care, which allows for individual redundancy in the completion of these tasks. We hypothesized that in social spider species, the presence of redundancy would reduce selection for individual neural investment relative to subsocial species. We found that social species had significantly decreased investment in the arcuate body, the cognitive center of the spider brain, supporting our predictions. Future comparative tests of brain evolution in social species should account for the special behavioral characteristics that accompany social groups in the subject taxa.Virginia CaponeraLeticia AvilésMeghan BarrettSean O’DonnellSean O’DonnellFrontiers Media S.A.articleneuroecologysocial behaviorsocial brain evolutionsocial spidersdistributed cognition hypothesisEvolutionQH359-425EcologyQH540-549.5ENFrontiers in Ecology and Evolution, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	neuroecology social behavior social brain evolution social spiders distributed cognition hypothesis Evolution QH359-425 Ecology QH540-549.5
spellingShingle	neuroecology social behavior social brain evolution social spiders distributed cognition hypothesis Evolution QH359-425 Ecology QH540-549.5 Virginia Caponera Leticia Avilés Meghan Barrett Sean O’Donnell Sean O’Donnell Behavioral Attributes of Social Groups Determine the Strength and Direction of Selection on Neural Investment
description	The evolution of social systems can place novel selective forces on investment in expensive neural tissue by changing cognitive demands. Previous hypotheses about the impact of sociality on neural investment have received equivocal support when tested across diverse taxonomic groups and social structures. We suggest previous models for social behavior-brain relationships have overlooked important variation in social groups. Social groups vary significantly in structure and function, and the specific attributes of a social group may be more relevant to setting cognitive demands than sociality in general. We have identified intragroup competition, relationship differentiation, information sharing, dominance hierarchies, and task specialization and redundancy as attributes of social behavior which may impact selection for neural investment, and outline how variation in these attributes can result in increased or decreased neural investment with transitions to sociality in different taxa. Finally, we test some of the predictions generated using this framework in a phylogenetic comparison of neural tissue investment in Anelosimus social spiders. Social Anelosimus spiders engage in cooperative prey capture and brood care, which allows for individual redundancy in the completion of these tasks. We hypothesized that in social spider species, the presence of redundancy would reduce selection for individual neural investment relative to subsocial species. We found that social species had significantly decreased investment in the arcuate body, the cognitive center of the spider brain, supporting our predictions. Future comparative tests of brain evolution in social species should account for the special behavioral characteristics that accompany social groups in the subject taxa.
format	article
author	Virginia Caponera Leticia Avilés Meghan Barrett Sean O’Donnell Sean O’Donnell
author_facet	Virginia Caponera Leticia Avilés Meghan Barrett Sean O’Donnell Sean O’Donnell
author_sort	Virginia Caponera
title	Behavioral Attributes of Social Groups Determine the Strength and Direction of Selection on Neural Investment
title_short	Behavioral Attributes of Social Groups Determine the Strength and Direction of Selection on Neural Investment
title_full	Behavioral Attributes of Social Groups Determine the Strength and Direction of Selection on Neural Investment
title_fullStr	Behavioral Attributes of Social Groups Determine the Strength and Direction of Selection on Neural Investment
title_full_unstemmed	Behavioral Attributes of Social Groups Determine the Strength and Direction of Selection on Neural Investment
title_sort	behavioral attributes of social groups determine the strength and direction of selection on neural investment
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/cff19717b5d34280b69c07c0a1ac8b12
work_keys_str_mv	AT virginiacaponera behavioralattributesofsocialgroupsdeterminethestrengthanddirectionofselectiononneuralinvestment AT leticiaaviles behavioralattributesofsocialgroupsdeterminethestrengthanddirectionofselectiononneuralinvestment AT meghanbarrett behavioralattributesofsocialgroupsdeterminethestrengthanddirectionofselectiononneuralinvestment AT seanodonnell behavioralattributesofsocialgroupsdeterminethestrengthanddirectionofselectiononneuralinvestment AT seanodonnell behavioralattributesofsocialgroupsdeterminethestrengthanddirectionofselectiononneuralinvestment
_version_	1718420872059944960

Behavioral Attributes of Social Groups Determine the Strength and Direction of Selection on Neural Investment

Ejemplares similares