Effects of an extreme drought on the endangered pearl mussel Margaritifera margaritifera: a before/after assessment
Main Author: | |
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Publication Date: | 2018 |
Other Authors: | , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Download full: | http://hdl.handle.net/10198/20106 |
Summary: | Droughts can change the distribution and alter the behaviour, phenology and physiology of many species, leading in extreme cases to high mortalities or even extirpation. In this study, a before/after comparison was performed in two Portuguese river basins (Rabac¸al and Tuela) to assess the possible effects of an extreme drought on the abundance and size structure of two pearl mussel Margaritifera margaritifera populations, a Critically Endangered species in Europe. The hydrological year of 2017 was extremely dry in Portugal and this situation was responsible for a major reduction of the river flow and rapid decrease in the water levels during summer. One year after the drought, a significant reduction in abundance was observed (i.e. 27.6% for the Rabac¸al and 38.7% for the Tuela basin populations). However, no differences were detected in the size structure of the two pearl mussel populations. Droughts are predicted to increase in number and intensity and it is crucial to monitor M. margaritifera populations, given the low resistance (and possibly low resilience) of this species to these extreme conditions. Management measures that could help the conservation of pearl mussels are discussed. |
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Effects of an extreme drought on the endangered pearl mussel Margaritifera margaritifera: a before/after assessmentClimate changeConservationExtreme climatic eventsMortalityResilienceResistanceDroughts can change the distribution and alter the behaviour, phenology and physiology of many species, leading in extreme cases to high mortalities or even extirpation. In this study, a before/after comparison was performed in two Portuguese river basins (Rabac¸al and Tuela) to assess the possible effects of an extreme drought on the abundance and size structure of two pearl mussel Margaritifera margaritifera populations, a Critically Endangered species in Europe. The hydrological year of 2017 was extremely dry in Portugal and this situation was responsible for a major reduction of the river flow and rapid decrease in the water levels during summer. One year after the drought, a significant reduction in abundance was observed (i.e. 27.6% for the Rabac¸al and 38.7% for the Tuela basin populations). However, no differences were detected in the size structure of the two pearl mussel populations. Droughts are predicted to increase in number and intensity and it is crucial to monitor M. margaritifera populations, given the low resistance (and possibly low resilience) of this species to these extreme conditions. Management measures that could help the conservation of pearl mussels are discussed.This work was supported by: (i) POSEUR-03-2215-FC-000096 and ICNF funds under Project CP01-MARG-QUERCUS/2018 and (ii) European Investment Funds by FEDER/COMPETE/POCI – Operational Competitiveness and Internationalization Program, under Project POCI-01-0145-FEDER-006958 and National Funds by FCT - Portuguese Foundation for Science and Technology, under the project UID/AGR/04033/2013. FCT also support MLL with a doctoral Grant (SFRH/BD/115728/2016). We are grateful to Jose´ Pedro Ramia˜o for the help with the precipitation data.Biblioteca Digital do IPBNogueira, Joana GarridoLopes-Lima, ManuelVarandas, SimoneTeixeira, AmílcarSousa, Ronaldo2018-01-19T10:00:00Z20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/20106engNogueira, Joana Garrido; Lopes-Lima, Manuel; Varandas, Simone; Teixeira, Amílcar; Sousa, Ronaldo (2019). Effects of an extreme drought on the endangered pearl mussel Margaritifera margaritifera: a before/after assessment. Hydrobiologia. ISSN 0018-8158. p. 1-110018-815810.1007/s10750-019-04103-1info: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:RCAAP2023-11-21T10:45:56Zoai:bibliotecadigital.ipb.pt:10198/20106Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:10:53.912128Repositório 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 |
Effects of an extreme drought on the endangered pearl mussel Margaritifera margaritifera: a before/after assessment |
title |
Effects of an extreme drought on the endangered pearl mussel Margaritifera margaritifera: a before/after assessment |
spellingShingle |
Effects of an extreme drought on the endangered pearl mussel Margaritifera margaritifera: a before/after assessment Nogueira, Joana Garrido Climate change Conservation Extreme climatic events Mortality Resilience Resistance |
title_short |
Effects of an extreme drought on the endangered pearl mussel Margaritifera margaritifera: a before/after assessment |
title_full |
Effects of an extreme drought on the endangered pearl mussel Margaritifera margaritifera: a before/after assessment |
title_fullStr |
Effects of an extreme drought on the endangered pearl mussel Margaritifera margaritifera: a before/after assessment |
title_full_unstemmed |
Effects of an extreme drought on the endangered pearl mussel Margaritifera margaritifera: a before/after assessment |
title_sort |
Effects of an extreme drought on the endangered pearl mussel Margaritifera margaritifera: a before/after assessment |
author |
Nogueira, Joana Garrido |
author_facet |
Nogueira, Joana Garrido Lopes-Lima, Manuel Varandas, Simone Teixeira, Amílcar Sousa, Ronaldo |
author_role |
author |
author2 |
Lopes-Lima, Manuel Varandas, Simone Teixeira, Amílcar Sousa, Ronaldo |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Nogueira, Joana Garrido Lopes-Lima, Manuel Varandas, Simone Teixeira, Amílcar Sousa, Ronaldo |
dc.subject.por.fl_str_mv |
Climate change Conservation Extreme climatic events Mortality Resilience Resistance |
topic |
Climate change Conservation Extreme climatic events Mortality Resilience Resistance |
description |
Droughts can change the distribution and alter the behaviour, phenology and physiology of many species, leading in extreme cases to high mortalities or even extirpation. In this study, a before/after comparison was performed in two Portuguese river basins (Rabac¸al and Tuela) to assess the possible effects of an extreme drought on the abundance and size structure of two pearl mussel Margaritifera margaritifera populations, a Critically Endangered species in Europe. The hydrological year of 2017 was extremely dry in Portugal and this situation was responsible for a major reduction of the river flow and rapid decrease in the water levels during summer. One year after the drought, a significant reduction in abundance was observed (i.e. 27.6% for the Rabac¸al and 38.7% for the Tuela basin populations). However, no differences were detected in the size structure of the two pearl mussel populations. Droughts are predicted to increase in number and intensity and it is crucial to monitor M. margaritifera populations, given the low resistance (and possibly low resilience) of this species to these extreme conditions. Management measures that could help the conservation of pearl mussels are discussed. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-19T10:00:00Z 2019 2019-01-01T00:00:00Z |
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/10198/20106 |
url |
http://hdl.handle.net/10198/20106 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Nogueira, Joana Garrido; Lopes-Lima, Manuel; Varandas, Simone; Teixeira, Amílcar; Sousa, Ronaldo (2019). Effects of an extreme drought on the endangered pearl mussel Margaritifera margaritifera: a before/after assessment. Hydrobiologia. ISSN 0018-8158. p. 1-11 0018-8158 10.1007/s10750-019-04103-1 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799135375526985728 |