Diatoms of temporary and permanent watercourses in Southern Europe (Portugal)
Autor(a) principal: | |
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Data de Publicação: | 2014 |
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/10174/12418 https://doi.org/10.1002/rra.2818 |
Resumo: | The potential importance of benthic diatoms in Mediterranean watercourses has received limited academic attention historically. This study sought to provide baseline information for this poorly studied group. Temporary and permanent watercourses in Portugal differ in catchment characteristics, climatic variables and water chemistry. The benthic diatom communities were characterized in terms of ecological preferences and conservation status for taxa with relative abundance above 1% in at least one site covering 39 temporary sites (109 taxa) and 53 permanent sites (130 taxa). The low-profile guild dominated both temporary and permanent watercourses, followed by the high-profile and motile guilds. Indicator value analysis indicated that Amphora copulata, Cocconeis placentula, Diploneis separanda, Encyonopsis subminuta, Fragilaria radians, Gomphonema olivaceum, Gomphonema truncatum, Halamphora veneta, Navicula radiosa, Navicula veneta, Sellaphora seminulum and Ulnaria acus were indicators of temporary watercourses, whereas Encyonema minutum, Eunotia minor, Fragilaria rumpens, Fragilaria cf. socia and Navicula rhynchocephala were characteristic of permanent watercourses. Ecological preferences of indicator taxa were inferred on the basis of environmental variables that differed significantly between temporary and permanent watercourses. The importance of temporary watercourses for the maintenance of diatom biodiversity is discussed and explored. |
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Diatoms of temporary and permanent watercourses in Southern Europe (Portugal)DiatomsEcological guildsEcological preferencesIndicator taxaSeasonalityThe potential importance of benthic diatoms in Mediterranean watercourses has received limited academic attention historically. This study sought to provide baseline information for this poorly studied group. Temporary and permanent watercourses in Portugal differ in catchment characteristics, climatic variables and water chemistry. The benthic diatom communities were characterized in terms of ecological preferences and conservation status for taxa with relative abundance above 1% in at least one site covering 39 temporary sites (109 taxa) and 53 permanent sites (130 taxa). The low-profile guild dominated both temporary and permanent watercourses, followed by the high-profile and motile guilds. Indicator value analysis indicated that Amphora copulata, Cocconeis placentula, Diploneis separanda, Encyonopsis subminuta, Fragilaria radians, Gomphonema olivaceum, Gomphonema truncatum, Halamphora veneta, Navicula radiosa, Navicula veneta, Sellaphora seminulum and Ulnaria acus were indicators of temporary watercourses, whereas Encyonema minutum, Eunotia minor, Fragilaria rumpens, Fragilaria cf. socia and Navicula rhynchocephala were characteristic of permanent watercourses. Ecological preferences of indicator taxa were inferred on the basis of environmental variables that differed significantly between temporary and permanent watercourses. The importance of temporary watercourses for the maintenance of diatom biodiversity is discussed and explored.2015-01-15T12:56:50Z2015-01-152014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/12418http://hdl.handle.net/10174/12418https://doi.org/10.1002/rra.2818engNovais MH, Morais MM, Rosado J, Dias LS, Hoffmann L, Ector L 2014. Diatoms of temporary and permanent watercourses in Southern Europe (Portugal). River Research and Applications 30: 1216-1232Partilhar com o Centro de Geofísica de Évorandmmorais@uevora.ptndndndnd221Novais, M.H.Morais, M.M.Rosado, J.Dias, L.S.Hoffmann, L.Ector, L.info: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:RCAAP2024-01-03T18:56:43Zoai:dspace.uevora.pt:10174/12418Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:05:51.524350Repositório 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 |
Diatoms of temporary and permanent watercourses in Southern Europe (Portugal) |
title |
Diatoms of temporary and permanent watercourses in Southern Europe (Portugal) |
spellingShingle |
Diatoms of temporary and permanent watercourses in Southern Europe (Portugal) Novais, M.H. Diatoms Ecological guilds Ecological preferences Indicator taxa Seasonality |
title_short |
Diatoms of temporary and permanent watercourses in Southern Europe (Portugal) |
title_full |
Diatoms of temporary and permanent watercourses in Southern Europe (Portugal) |
title_fullStr |
Diatoms of temporary and permanent watercourses in Southern Europe (Portugal) |
title_full_unstemmed |
Diatoms of temporary and permanent watercourses in Southern Europe (Portugal) |
title_sort |
Diatoms of temporary and permanent watercourses in Southern Europe (Portugal) |
author |
Novais, M.H. |
author_facet |
Novais, M.H. Morais, M.M. Rosado, J. Dias, L.S. Hoffmann, L. Ector, L. |
author_role |
author |
author2 |
Morais, M.M. Rosado, J. Dias, L.S. Hoffmann, L. Ector, L. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Novais, M.H. Morais, M.M. Rosado, J. Dias, L.S. Hoffmann, L. Ector, L. |
dc.subject.por.fl_str_mv |
Diatoms Ecological guilds Ecological preferences Indicator taxa Seasonality |
topic |
Diatoms Ecological guilds Ecological preferences Indicator taxa Seasonality |
description |
The potential importance of benthic diatoms in Mediterranean watercourses has received limited academic attention historically. This study sought to provide baseline information for this poorly studied group. Temporary and permanent watercourses in Portugal differ in catchment characteristics, climatic variables and water chemistry. The benthic diatom communities were characterized in terms of ecological preferences and conservation status for taxa with relative abundance above 1% in at least one site covering 39 temporary sites (109 taxa) and 53 permanent sites (130 taxa). The low-profile guild dominated both temporary and permanent watercourses, followed by the high-profile and motile guilds. Indicator value analysis indicated that Amphora copulata, Cocconeis placentula, Diploneis separanda, Encyonopsis subminuta, Fragilaria radians, Gomphonema olivaceum, Gomphonema truncatum, Halamphora veneta, Navicula radiosa, Navicula veneta, Sellaphora seminulum and Ulnaria acus were indicators of temporary watercourses, whereas Encyonema minutum, Eunotia minor, Fragilaria rumpens, Fragilaria cf. socia and Navicula rhynchocephala were characteristic of permanent watercourses. Ecological preferences of indicator taxa were inferred on the basis of environmental variables that differed significantly between temporary and permanent watercourses. The importance of temporary watercourses for the maintenance of diatom biodiversity is discussed and explored. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01T00:00:00Z 2015-01-15T12:56:50Z 2015-01-15 |
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/10174/12418 http://hdl.handle.net/10174/12418 https://doi.org/10.1002/rra.2818 |
url |
http://hdl.handle.net/10174/12418 https://doi.org/10.1002/rra.2818 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Novais MH, Morais MM, Rosado J, Dias LS, Hoffmann L, Ector L 2014. Diatoms of temporary and permanent watercourses in Southern Europe (Portugal). River Research and Applications 30: 1216-1232 Partilhar com o Centro de Geofísica de Évora nd mmorais@uevora.pt nd nd nd nd 221 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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 |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
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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1799136543874482176 |