Predation and competition effects on the size diversity of aquatic communities

Body size has been widely recognised as a key factor determining community structure in ecosystems. We analysed size diversity patterns of phytoplankton, zooplankton and fish assemblages in 13 data sets from freshwater and marine sites with the aim to assess whether there is a general trend in the e...

Descripción completa

Detalles Bibliográficos
Autores: Quintana Pou, Xavier, Arim, Matías, Badosa i Salvador, Anna, Blanco, José María, Boix Masafret, Dani, Brucet Balmaña, Sandra, Compte Ciurana, Jordi, Egozcue, Juan José, Eyto, Elvira de, Gaedke, Ursula, Gascón Garcia, Stéphanie, Gil de Sola Simarro, Luís, Irvine, Kenneth, Jeppesen, Erik, Lauridsen, Torben L., López i Flores, Rocío, Mehner, Thomas, Romo, Susana, Søndergaard, Martin
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/11297
Acceso en línea:http://hdl.handle.net/10256/11297
Access Level:acceso embargado
Palabra clave:Ecologia aquàtica
Aquatic ecology
id ES_fafbabd5d2a2380fb353e249ca5d14aa
oai_identifier_str oai:recercat.cat:10256/11297
network_acronym_str ES
network_name_str España
repository_id_str
spelling Predation and competition effects on the size diversity of aquatic communitiesQuintana Pou, XavierArim, MatíasBadosa i Salvador, AnnaBlanco, José MaríaBoix Masafret, DaniBrucet Balmaña, SandraCompte Ciurana, JordiEgozcue, Juan JoséEyto, Elvira deGaedke, UrsulaGascón Garcia, StéphanieGil de Sola Simarro, LuísIrvine, KennethJeppesen, ErikLauridsen, Torben L.López i Flores, RocíoMehner, ThomasRomo, SusanaSøndergaard, MartinEcologia aquàticaAquatic ecologyBody size has been widely recognised as a key factor determining community structure in ecosystems. We analysed size diversity patterns of phytoplankton, zooplankton and fish assemblages in 13 data sets from freshwater and marine sites with the aim to assess whether there is a general trend in the effect of predation and resource competition on body size distribution across a wide range of aquatic ecosystems. We used size diversity as a measure of the shape of size distribution. Size diversity was computed based on the Shannon-Wiener diversity expression, adapted to a continuous variable, i.e. as body size. Our results show that greater predation pressure was associated with reduced size diversity of prey at all trophic levels. In contrast, competition effects depended on the trophic level considered. At upper trophic levels (zooplankton and fish), size distributions were more diverse when potential resource availability was low, suggesting that competitive interactions for resources promote diversification of aquatic communities by size. This pattern was not found for phytoplankton size distributions where size diversity mostly increased with low zooplankton grazing and increasing nutrient availability. Relationships we found were weak, indicating that predation and competition are not the only determinants of size distribution. Our results suggest that predation pressure leads to accumulation of organisms in the less predated sizes, while resource competition tends to favour a wider size distributionhis work was supported by grants from the Comision de Investigacion Cientifica y Tecnica (CICYT), Programa de Investigacion Fundamental (CGL2008-05778/BOS and CGL2011-23907). We thank Dr. Dietmar Straile, who provided zooplankton data on Lake Constance. S. Brucet's contribution was supported by the Marie Curie Intra European Fellowship No. 330249 (CLIMBING)Springer VerlagMinisterio de Ciencia e Innovación (Espanya)infoinfo2014info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10256/11297http://hdl.handle.net/10256/11297© Aquatic Sciences, 2014, vol. 77, núm.1, p. 45-57Articles publicats (D-CCAA)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglésinfo:eu-repo/semantics/altIdentifier/doi/10.1007/s00027-014-0368-1info:eu-repo/semantics/altIdentifier/issn/1015-1621info:eu-repo/grantAgreement/MICINN//CGL2011-23907info:eu-repo/grantAgreement/MICINN//CGL2008-05778Tots els drets reservatsinfo:eu-repo/semantics/embargoedAccessoai:recercat.cat:10256/112972026-05-29T05:05:01Z
dc.title.none.fl_str_mv Predation and competition effects on the size diversity of aquatic communities
title Predation and competition effects on the size diversity of aquatic communities
spellingShingle Predation and competition effects on the size diversity of aquatic communities
Quintana Pou, Xavier
Ecologia aquàtica
Aquatic ecology
title_short Predation and competition effects on the size diversity of aquatic communities
title_full Predation and competition effects on the size diversity of aquatic communities
title_fullStr Predation and competition effects on the size diversity of aquatic communities
title_full_unstemmed Predation and competition effects on the size diversity of aquatic communities
title_sort Predation and competition effects on the size diversity of aquatic communities
dc.creator.none.fl_str_mv Quintana Pou, Xavier
Arim, Matías
Badosa i Salvador, Anna
Blanco, José María
Boix Masafret, Dani
Brucet Balmaña, Sandra
Compte Ciurana, Jordi
Egozcue, Juan José
Eyto, Elvira de
Gaedke, Ursula
Gascón Garcia, Stéphanie
Gil de Sola Simarro, Luís
Irvine, Kenneth
Jeppesen, Erik
Lauridsen, Torben L.
López i Flores, Rocío
Mehner, Thomas
Romo, Susana
Søndergaard, Martin
author Quintana Pou, Xavier
author_facet Quintana Pou, Xavier
Arim, Matías
Badosa i Salvador, Anna
Blanco, José María
Boix Masafret, Dani
Brucet Balmaña, Sandra
Compte Ciurana, Jordi
Egozcue, Juan José
Eyto, Elvira de
Gaedke, Ursula
Gascón Garcia, Stéphanie
Gil de Sola Simarro, Luís
Irvine, Kenneth
Jeppesen, Erik
Lauridsen, Torben L.
López i Flores, Rocío
Mehner, Thomas
Romo, Susana
Søndergaard, Martin
author_role author
author2 Arim, Matías
Badosa i Salvador, Anna
Blanco, José María
Boix Masafret, Dani
Brucet Balmaña, Sandra
Compte Ciurana, Jordi
Egozcue, Juan José
Eyto, Elvira de
Gaedke, Ursula
Gascón Garcia, Stéphanie
Gil de Sola Simarro, Luís
Irvine, Kenneth
Jeppesen, Erik
Lauridsen, Torben L.
López i Flores, Rocío
Mehner, Thomas
Romo, Susana
Søndergaard, Martin
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (Espanya)
dc.subject.none.fl_str_mv Ecologia aquàtica
Aquatic ecology
topic Ecologia aquàtica
Aquatic ecology
description Body size has been widely recognised as a key factor determining community structure in ecosystems. We analysed size diversity patterns of phytoplankton, zooplankton and fish assemblages in 13 data sets from freshwater and marine sites with the aim to assess whether there is a general trend in the effect of predation and resource competition on body size distribution across a wide range of aquatic ecosystems. We used size diversity as a measure of the shape of size distribution. Size diversity was computed based on the Shannon-Wiener diversity expression, adapted to a continuous variable, i.e. as body size. Our results show that greater predation pressure was associated with reduced size diversity of prey at all trophic levels. In contrast, competition effects depended on the trophic level considered. At upper trophic levels (zooplankton and fish), size distributions were more diverse when potential resource availability was low, suggesting that competitive interactions for resources promote diversification of aquatic communities by size. This pattern was not found for phytoplankton size distributions where size diversity mostly increased with low zooplankton grazing and increasing nutrient availability. Relationships we found were weak, indicating that predation and competition are not the only determinants of size distribution. Our results suggest that predation pressure leads to accumulation of organisms in the less predated sizes, while resource competition tends to favour a wider size distribution
publishDate 2014
dc.date.none.fl_str_mv 2014
info
info
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 http://hdl.handle.net/10256/11297
http://hdl.handle.net/10256/11297
url http://hdl.handle.net/10256/11297
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s00027-014-0368-1
info:eu-repo/semantics/altIdentifier/issn/1015-1621
info:eu-repo/grantAgreement/MICINN//CGL2011-23907
info:eu-repo/grantAgreement/MICINN//CGL2008-05778
dc.rights.none.fl_str_mv Tots els drets reservats
info:eu-repo/semantics/embargoedAccess
rights_invalid_str_mv Tots els drets reservats
eu_rights_str_mv embargoedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer Verlag
publisher.none.fl_str_mv Springer Verlag
dc.source.none.fl_str_mv © Aquatic Sciences, 2014, vol. 77, núm.1, p. 45-57
Articles publicats (D-CCAA)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869425287709589504
score 15.81155

Similares en LA Referencia