Diet of the White Stork (Ciconia ciconia) in a heterogeneous Mediterranean landscape: the importance of the invasive Red Swamp Crayfish (Procambarus clarkii)
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
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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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 |
publisher.none.fl_str_mv |
SPEA |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799136658619105280 |