The dominant seagrass herbivore Sarpa salpa shifts its shoaling and feeding strategies as they grow

The relative benefits of group foraging change as animals grow. Metabolic requirements, competitive abilities and predation risk are often allometric and influenced by group size. How individuals optimise costs and benefits as they grow can strongly influence consumption patterns. The shoaling fish...

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Autores: Buñuel Moreno, Xavier, Alcoverro i Pedrola, Teresa, Pagès Fauria, Jordi, Romero, Javier (Romero Martinengo), Ruiz, Juan M., Arthur, Rohan
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/176891
Acceso en línea:https://hdl.handle.net/2445/176891
Access Level:acceso abierto
Palabra clave:Posidònia oceànica
Herbívors
Peixos marins
Posidonia oceanica
Herbivores
Marine fishes
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spelling The dominant seagrass herbivore Sarpa salpa shifts its shoaling and feeding strategies as they growBuñuel Moreno, XavierAlcoverro i Pedrola, TeresaPagès Fauria, JordiRomero, Javier (Romero Martinengo)Ruiz, Juan M.Arthur, RohanPosidònia oceànicaHerbívorsPeixos marinsPosidonia oceanicaHerbivoresMarine fishesThe relative benefits of group foraging change as animals grow. Metabolic requirements, competitive abilities and predation risk are often allometric and influenced by group size. How individuals optimise costs and benefits as they grow can strongly influence consumption patterns. The shoaling fish Sarpa salpa is the principal herbivore of temperate Posidonia oceanica seagrass meadows. We used in-situ observations to describe how ontogeny influenced S. salpa individual feeding behaviour, shoaling behaviour and group foraging strategies, and its potential consequences to seagrass meadows. Shoaling was strongly influenced by body length: shoals were highly length-assorted and there was a clear positive relationship between body length and shoal size. Foraging strategies changed dramatically with shoal size. Small shoals foraged simultaneously and scattered over large areas. In contrast, larger shoals (made of larger individuals) employed a potentially cooperative strategy where individuals fed rotationally and focused in smaller areas for longer times (spot feeding). Thus, as individuals grew, they increased their potential impact as well, not merely because they consumed more, but because they formed larger shoals capable of considerably concentrating their grazing within the landscape. Our results indicate that ontogenetic shifts in group foraging strategies can have large ecosystem-wide consequences when the species is an important ecosystem modifier.Nature Publishing Group2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/176891Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1038/s41598-020-67498-1Scientific Reports, 2020, vol. 10, num. 1, p. 10622https://doi.org/10.1038/s41598-020-67498-1info:eu-repo/grantAgreement/EC/H2020/795315cc-by (c) Buñuel, Xavier et al., 2020http://creativecommons.org/licenses/by/3.0/esinfo:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1768912026-05-27T06:46:51Z
dc.title.none.fl_str_mv The dominant seagrass herbivore Sarpa salpa shifts its shoaling and feeding strategies as they grow
title The dominant seagrass herbivore Sarpa salpa shifts its shoaling and feeding strategies as they grow
spellingShingle The dominant seagrass herbivore Sarpa salpa shifts its shoaling and feeding strategies as they grow
Buñuel Moreno, Xavier
Posidònia oceànica
Herbívors
Peixos marins
Posidonia oceanica
Herbivores
Marine fishes
title_short The dominant seagrass herbivore Sarpa salpa shifts its shoaling and feeding strategies as they grow
title_full The dominant seagrass herbivore Sarpa salpa shifts its shoaling and feeding strategies as they grow
title_fullStr The dominant seagrass herbivore Sarpa salpa shifts its shoaling and feeding strategies as they grow
title_full_unstemmed The dominant seagrass herbivore Sarpa salpa shifts its shoaling and feeding strategies as they grow
title_sort The dominant seagrass herbivore Sarpa salpa shifts its shoaling and feeding strategies as they grow
dc.creator.none.fl_str_mv Buñuel Moreno, Xavier
Alcoverro i Pedrola, Teresa
Pagès Fauria, Jordi
Romero, Javier (Romero Martinengo)
Ruiz, Juan M.
Arthur, Rohan
author Buñuel Moreno, Xavier
author_facet Buñuel Moreno, Xavier
Alcoverro i Pedrola, Teresa
Pagès Fauria, Jordi
Romero, Javier (Romero Martinengo)
Ruiz, Juan M.
Arthur, Rohan
author_role author
author2 Alcoverro i Pedrola, Teresa
Pagès Fauria, Jordi
Romero, Javier (Romero Martinengo)
Ruiz, Juan M.
Arthur, Rohan
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Posidònia oceànica
Herbívors
Peixos marins
Posidonia oceanica
Herbivores
Marine fishes
topic Posidònia oceànica
Herbívors
Peixos marins
Posidonia oceanica
Herbivores
Marine fishes
description The relative benefits of group foraging change as animals grow. Metabolic requirements, competitive abilities and predation risk are often allometric and influenced by group size. How individuals optimise costs and benefits as they grow can strongly influence consumption patterns. The shoaling fish Sarpa salpa is the principal herbivore of temperate Posidonia oceanica seagrass meadows. We used in-situ observations to describe how ontogeny influenced S. salpa individual feeding behaviour, shoaling behaviour and group foraging strategies, and its potential consequences to seagrass meadows. Shoaling was strongly influenced by body length: shoals were highly length-assorted and there was a clear positive relationship between body length and shoal size. Foraging strategies changed dramatically with shoal size. Small shoals foraged simultaneously and scattered over large areas. In contrast, larger shoals (made of larger individuals) employed a potentially cooperative strategy where individuals fed rotationally and focused in smaller areas for longer times (spot feeding). Thus, as individuals grew, they increased their potential impact as well, not merely because they consumed more, but because they formed larger shoals capable of considerably concentrating their grazing within the landscape. Our results indicate that ontogenetic shifts in group foraging strategies can have large ecosystem-wide consequences when the species is an important ecosystem modifier.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/176891
url https://hdl.handle.net/2445/176891
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1038/s41598-020-67498-1
Scientific Reports, 2020, vol. 10, num. 1, p. 10622
https://doi.org/10.1038/s41598-020-67498-1
info:eu-repo/grantAgreement/EC/H2020/795315
dc.rights.none.fl_str_mv cc-by (c) Buñuel, Xavier et al., 2020
http://creativecommons.org/licenses/by/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Buñuel, Xavier et al., 2020
http://creativecommons.org/licenses/by/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Nature Publishing Group
publisher.none.fl_str_mv Nature Publishing Group
dc.source.none.fl_str_mv Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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