Diet of the White Stork (Ciconia ciconia) in a heterogeneous Mediterranean landscape: the importance of the invasive Red Swamp Crayfish (Procambarus clarkii)

Detalhes bibliográficos
Autor(a) principal: Ferreira, Eduardo
Data de Publicação: 2019
Outros Autores: Grilo, Filipa, Mendes, Raquel, Lourenço, Rui, Santos, Sara, Petrucci-Fonseca, Francisco
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10174/27678
Resumo: Limited quantitative data are available on food habits of the White Stork (Ciconia ciconia) in Mediterranean environments, particularly in ricefields where a relatively new food resource, the invasive Red Swamp Crayfish (Procambarus clarkii), is abundant. We studied the diet of the White Stork in a heterogeneous landscape (Central Portugal) in order to compare the importance of the Red Swamp Crayfish as a food resource in a dominant agricultural/ricefield area in rela - tion to a predominant woodland/agricultural area. White Storks´ diet was analysed spatially (two sites) and seasonally (winter, spring, summer) using pellets (n = 122) collected between December 2012 and July 2013. Overall, from 1570 prey items identified, crayfish was the second most frequent and abundant prey in the diet (frequency of occurrence, FO = 79.5%; numerical fre- quency, NF = 22.9%, respectively), only surpassed by coleopterans (FO = 94.3%; NF = 57.7%). However, in terms of consumed biomass (global PB) crayfish dominated the diet (PB = 44.0%),representing 1.8 times the consumed biomass of coleopterans (PB = 24.2%). Consumption of crayfish was higher in the site with highest abundance of ricefields (NF: 32.0% vs. 17.7%; PB: 51.3% vs. 38.4%). Although no significant seasonal variations were detected in terms of the number of crayfish consumed by storks, consumed crayfish biomass was significantly higher in summer in relation to other seasons. Our findings suggest that in Mediterranean heterogeneous areas the White Stork feeds upon a wide range of prey taxa though, when available, coleopterans along with Red Swamp Crayfish dominate the diet.
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spelling Diet of the White Stork (Ciconia ciconia) in a heterogeneous Mediterranean landscape: the importance of the invasive Red Swamp Crayfish (Procambarus clarkii)feeding ecologycrayfishwhite storkpellet analysisLimited quantitative data are available on food habits of the White Stork (Ciconia ciconia) in Mediterranean environments, particularly in ricefields where a relatively new food resource, the invasive Red Swamp Crayfish (Procambarus clarkii), is abundant. We studied the diet of the White Stork in a heterogeneous landscape (Central Portugal) in order to compare the importance of the Red Swamp Crayfish as a food resource in a dominant agricultural/ricefield area in rela - tion to a predominant woodland/agricultural area. White Storks´ diet was analysed spatially (two sites) and seasonally (winter, spring, summer) using pellets (n = 122) collected between December 2012 and July 2013. Overall, from 1570 prey items identified, crayfish was the second most frequent and abundant prey in the diet (frequency of occurrence, FO = 79.5%; numerical fre- quency, NF = 22.9%, respectively), only surpassed by coleopterans (FO = 94.3%; NF = 57.7%). However, in terms of consumed biomass (global PB) crayfish dominated the diet (PB = 44.0%),representing 1.8 times the consumed biomass of coleopterans (PB = 24.2%). Consumption of crayfish was higher in the site with highest abundance of ricefields (NF: 32.0% vs. 17.7%; PB: 51.3% vs. 38.4%). Although no significant seasonal variations were detected in terms of the number of crayfish consumed by storks, consumed crayfish biomass was significantly higher in summer in relation to other seasons. Our findings suggest that in Mediterranean heterogeneous areas the White Stork feeds upon a wide range of prey taxa though, when available, coleopterans along with Red Swamp Crayfish dominate the diet.SPEA2020-03-03T16:53:53Z2020-03-032019-10-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/27678http://hdl.handle.net/10174/27678engFerreira, E., Grilo, F., Mendes, R.C., Lourenço, R., Santos, S.M., Petrucci-Fonseca, F. Diet of the White Stork (Ciconia ciconia) in a heterogeneous Mediterranean landscape: the importance of the invasive Red Swamp Crayfish (Procambarus clarkii) (2019). Airo, 26: 27-41ferreiraeduardo.mr@gmail.comndndlourenco@uevora.ptsmsantos@uevora.ptnd221Ferreira, EduardoGrilo, FilipaMendes, RaquelLourenço, RuiSantos, SaraPetrucci-Fonseca, Franciscoinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:23:16Zoai:dspace.uevora.pt:10174/27678Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:17:40.596519Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Diet of the White Stork (Ciconia ciconia) in a heterogeneous Mediterranean landscape: the importance of the invasive Red Swamp Crayfish (Procambarus clarkii)
title Diet of the White Stork (Ciconia ciconia) in a heterogeneous Mediterranean landscape: the importance of the invasive Red Swamp Crayfish (Procambarus clarkii)
spellingShingle Diet of the White Stork (Ciconia ciconia) in a heterogeneous Mediterranean landscape: the importance of the invasive Red Swamp Crayfish (Procambarus clarkii)
Ferreira, Eduardo
feeding ecology
crayfish
white stork
pellet analysis
title_short Diet of the White Stork (Ciconia ciconia) in a heterogeneous Mediterranean landscape: the importance of the invasive Red Swamp Crayfish (Procambarus clarkii)
title_full Diet of the White Stork (Ciconia ciconia) in a heterogeneous Mediterranean landscape: the importance of the invasive Red Swamp Crayfish (Procambarus clarkii)
title_fullStr Diet of the White Stork (Ciconia ciconia) in a heterogeneous Mediterranean landscape: the importance of the invasive Red Swamp Crayfish (Procambarus clarkii)
title_full_unstemmed Diet of the White Stork (Ciconia ciconia) in a heterogeneous Mediterranean landscape: the importance of the invasive Red Swamp Crayfish (Procambarus clarkii)
title_sort Diet of the White Stork (Ciconia ciconia) in a heterogeneous Mediterranean landscape: the importance of the invasive Red Swamp Crayfish (Procambarus clarkii)
author Ferreira, Eduardo
author_facet Ferreira, Eduardo
Grilo, Filipa
Mendes, Raquel
Lourenço, Rui
Santos, Sara
Petrucci-Fonseca, Francisco
author_role author
author2 Grilo, Filipa
Mendes, Raquel
Lourenço, Rui
Santos, Sara
Petrucci-Fonseca, Francisco
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Ferreira, Eduardo
Grilo, Filipa
Mendes, Raquel
Lourenço, Rui
Santos, Sara
Petrucci-Fonseca, Francisco
dc.subject.por.fl_str_mv feeding ecology
crayfish
white stork
pellet analysis
topic feeding ecology
crayfish
white stork
pellet analysis
description Limited quantitative data are available on food habits of the White Stork (Ciconia ciconia) in Mediterranean environments, particularly in ricefields where a relatively new food resource, the invasive Red Swamp Crayfish (Procambarus clarkii), is abundant. We studied the diet of the White Stork in a heterogeneous landscape (Central Portugal) in order to compare the importance of the Red Swamp Crayfish as a food resource in a dominant agricultural/ricefield area in rela - tion to a predominant woodland/agricultural area. White Storks´ diet was analysed spatially (two sites) and seasonally (winter, spring, summer) using pellets (n = 122) collected between December 2012 and July 2013. Overall, from 1570 prey items identified, crayfish was the second most frequent and abundant prey in the diet (frequency of occurrence, FO = 79.5%; numerical fre- quency, NF = 22.9%, respectively), only surpassed by coleopterans (FO = 94.3%; NF = 57.7%). However, in terms of consumed biomass (global PB) crayfish dominated the diet (PB = 44.0%),representing 1.8 times the consumed biomass of coleopterans (PB = 24.2%). Consumption of crayfish was higher in the site with highest abundance of ricefields (NF: 32.0% vs. 17.7%; PB: 51.3% vs. 38.4%). Although no significant seasonal variations were detected in terms of the number of crayfish consumed by storks, consumed crayfish biomass was significantly higher in summer in relation to other seasons. Our findings suggest that in Mediterranean heterogeneous areas the White Stork feeds upon a wide range of prey taxa though, when available, coleopterans along with Red Swamp Crayfish dominate the diet.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-01T00:00:00Z
2020-03-03T16:53:53Z
2020-03-03
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10174/27678
http://hdl.handle.net/10174/27678
url http://hdl.handle.net/10174/27678
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Ferreira, E., Grilo, F., Mendes, R.C., Lourenço, R., Santos, S.M., Petrucci-Fonseca, F. Diet of the White Stork (Ciconia ciconia) in a heterogeneous Mediterranean landscape: the importance of the invasive Red Swamp Crayfish (Procambarus clarkii) (2019). Airo, 26: 27-41
ferreiraeduardo.mr@gmail.com
nd
nd
lourenco@uevora.pt
smsantos@uevora.pt
nd
221
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv SPEA
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dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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