Freshwater conservation assessments in (semi-)arid regions: testing river intermittence and buffer strategies using freshwater mussels (Bivalvia, Unionida) in Morocco

Detalhes bibliográficos
Autor(a) principal: Gomes-dos-Santos, André
Data de Publicação: 2018
Outros Autores: Froufe, Elsa, Gonçalves, Duarte V., Sousa, Ronaldo, Prié, Vincent, Ghamizi, Mohamed, Benaissa, Hassan, Varandas, Simone, Teixeira, Amílcar, Lopes-Lima, Manuel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10198/20281
Resumo: The IUCN Red List assessments are essentially based on population trends and range, namely Area of Occupancy (AOO) and Extent of Occupancy (EOO). Range estimations are based on fixed grids, but this is likely inappropriate for species living in river networks. Furthermore, AOO and EOO are measured using the whole hydrographic network, therefore disregarding temporary sections, which is particularly problematic in arid and semi-arid regions. Here we mapped the permanent hydrographic network of Morocco using satellite imagery, complemented with field surveys to collect samples for molecular analyses of the five freshwater mussel species present and assess their distribution. The phylogeographic patterns are described for each species and used to identify priority areas and evolutionary significant units for conservation. Permanent hydrographic river sections represent only 18.3% of the whole hydrographic network. A north-to-south gradient of genetic diversity, species richness and distribution range was found, being coherent with water availability and river intermittence. Isolated evolutionary units were detected in southern basins that should also receive particular attention in conservation planning. We propose the mean river width multiplied by the extent of the river network as the best and the most adequate way to estimate both EOO and AOO. Given the worldwide degradation of freshwater systems and biodiversity, an accurate (re)assessment of species conservation status supported with maps of intermittent water bodies will be essential for prioritizing and guiding conservation actions and management plans, especially in arid and semi-arid regions.
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spelling Freshwater conservation assessments in (semi-)arid regions: testing river intermittence and buffer strategies using freshwater mussels (Bivalvia, Unionida) in MoroccoBiogeographyNorth AfricaRiver desiccationUnionidaThe IUCN Red List assessments are essentially based on population trends and range, namely Area of Occupancy (AOO) and Extent of Occupancy (EOO). Range estimations are based on fixed grids, but this is likely inappropriate for species living in river networks. Furthermore, AOO and EOO are measured using the whole hydrographic network, therefore disregarding temporary sections, which is particularly problematic in arid and semi-arid regions. Here we mapped the permanent hydrographic network of Morocco using satellite imagery, complemented with field surveys to collect samples for molecular analyses of the five freshwater mussel species present and assess their distribution. The phylogeographic patterns are described for each species and used to identify priority areas and evolutionary significant units for conservation. Permanent hydrographic river sections represent only 18.3% of the whole hydrographic network. A north-to-south gradient of genetic diversity, species richness and distribution range was found, being coherent with water availability and river intermittence. Isolated evolutionary units were detected in southern basins that should also receive particular attention in conservation planning. We propose the mean river width multiplied by the extent of the river network as the best and the most adequate way to estimate both EOO and AOO. Given the worldwide degradation of freshwater systems and biodiversity, an accurate (re)assessment of species conservation status supported with maps of intermittent water bodies will be essential for prioritizing and guiding conservation actions and management plans, especially in arid and semi-arid regions.This work was partially supported by the Portuguese Foundation for Science and Technology (FCT) under grant SFRH/BD/115728/2016 (MLL) and grant SFRH/BD/137935/2018 (AGS). This research was developed under ConBiomics: the missing approach for the Conservation of freshwater Bivalves Project N° NORTE-01-0145- FEDER-030286, co-financed by COMPETE 2020, Portugal 2020 and the European Union through the ERDF, and by FCT through national funds. This study was additionally conducted within the scope of project “Biodiversity and conservation of the critically endangered freshwater mussels in Morocco: ecogeographic, genetic and physiological information”, funded by Mohamed bin Zayed Species Conservation Fund (Reference 15256799) and project “Breeding the most endangered bivalve on Earth: Margaritifera marocana”, funded by IUCN SOS save our species fund (Reference 2015B-015). Official capture and sampling licenses were issued by the Université Cadi Ayyad (Faculté des Sciences, Semlalia, Marrakech, Maroc).Biblioteca Digital do IPBGomes-dos-Santos, AndréFroufe, ElsaGonçalves, Duarte V.Sousa, RonaldoPrié, VincentGhamizi, MohamedBenaissa, HassanVarandas, SimoneTeixeira, AmílcarLopes-Lima, Manuel2018-01-19T10:00:00Z20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/20281engGomes-dos-Santos, André; Froufe, Elsa; Gonçalves, Duarte V.; Sousa, Ronaldo; Prié, Vincent; Ghamizi, Mohamed; Benaissa, Hassan; Varandas, Simone; Teixeira, Amílcar; Lopes-Lima, Manuel (2019). Freshwater conservation assessments in (semi-)arid regions: Testing river intermittence and buffer strategies using freshwater mussels (Bivalvia, Unionida) in Morocco. Biological Conservation. ISSN 0006-3207. 236, p. 420-4340006-320710.1016/j.biocon.2019.05.038info: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:RCAAP2023-11-21T10:46:13Zoai:bibliotecadigital.ipb.pt:10198/20281Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:11:04.331884Repositório 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 Freshwater conservation assessments in (semi-)arid regions: testing river intermittence and buffer strategies using freshwater mussels (Bivalvia, Unionida) in Morocco
title Freshwater conservation assessments in (semi-)arid regions: testing river intermittence and buffer strategies using freshwater mussels (Bivalvia, Unionida) in Morocco
spellingShingle Freshwater conservation assessments in (semi-)arid regions: testing river intermittence and buffer strategies using freshwater mussels (Bivalvia, Unionida) in Morocco
Gomes-dos-Santos, André
Biogeography
North Africa
River desiccation
Unionida
title_short Freshwater conservation assessments in (semi-)arid regions: testing river intermittence and buffer strategies using freshwater mussels (Bivalvia, Unionida) in Morocco
title_full Freshwater conservation assessments in (semi-)arid regions: testing river intermittence and buffer strategies using freshwater mussels (Bivalvia, Unionida) in Morocco
title_fullStr Freshwater conservation assessments in (semi-)arid regions: testing river intermittence and buffer strategies using freshwater mussels (Bivalvia, Unionida) in Morocco
title_full_unstemmed Freshwater conservation assessments in (semi-)arid regions: testing river intermittence and buffer strategies using freshwater mussels (Bivalvia, Unionida) in Morocco
title_sort Freshwater conservation assessments in (semi-)arid regions: testing river intermittence and buffer strategies using freshwater mussels (Bivalvia, Unionida) in Morocco
author Gomes-dos-Santos, André
author_facet Gomes-dos-Santos, André
Froufe, Elsa
Gonçalves, Duarte V.
Sousa, Ronaldo
Prié, Vincent
Ghamizi, Mohamed
Benaissa, Hassan
Varandas, Simone
Teixeira, Amílcar
Lopes-Lima, Manuel
author_role author
author2 Froufe, Elsa
Gonçalves, Duarte V.
Sousa, Ronaldo
Prié, Vincent
Ghamizi, Mohamed
Benaissa, Hassan
Varandas, Simone
Teixeira, Amílcar
Lopes-Lima, Manuel
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Biblioteca Digital do IPB
dc.contributor.author.fl_str_mv Gomes-dos-Santos, André
Froufe, Elsa
Gonçalves, Duarte V.
Sousa, Ronaldo
Prié, Vincent
Ghamizi, Mohamed
Benaissa, Hassan
Varandas, Simone
Teixeira, Amílcar
Lopes-Lima, Manuel
dc.subject.por.fl_str_mv Biogeography
North Africa
River desiccation
Unionida
topic Biogeography
North Africa
River desiccation
Unionida
description The IUCN Red List assessments are essentially based on population trends and range, namely Area of Occupancy (AOO) and Extent of Occupancy (EOO). Range estimations are based on fixed grids, but this is likely inappropriate for species living in river networks. Furthermore, AOO and EOO are measured using the whole hydrographic network, therefore disregarding temporary sections, which is particularly problematic in arid and semi-arid regions. Here we mapped the permanent hydrographic network of Morocco using satellite imagery, complemented with field surveys to collect samples for molecular analyses of the five freshwater mussel species present and assess their distribution. The phylogeographic patterns are described for each species and used to identify priority areas and evolutionary significant units for conservation. Permanent hydrographic river sections represent only 18.3% of the whole hydrographic network. A north-to-south gradient of genetic diversity, species richness and distribution range was found, being coherent with water availability and river intermittence. Isolated evolutionary units were detected in southern basins that should also receive particular attention in conservation planning. We propose the mean river width multiplied by the extent of the river network as the best and the most adequate way to estimate both EOO and AOO. Given the worldwide degradation of freshwater systems and biodiversity, an accurate (re)assessment of species conservation status supported with maps of intermittent water bodies will be essential for prioritizing and guiding conservation actions and management plans, especially in arid and semi-arid regions.
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/10198/20281
url http://hdl.handle.net/10198/20281
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Gomes-dos-Santos, André; Froufe, Elsa; Gonçalves, Duarte V.; Sousa, Ronaldo; Prié, Vincent; Ghamizi, Mohamed; Benaissa, Hassan; Varandas, Simone; Teixeira, Amílcar; Lopes-Lima, Manuel (2019). Freshwater conservation assessments in (semi-)arid regions: Testing river intermittence and buffer strategies using freshwater mussels (Bivalvia, Unionida) in Morocco. Biological Conservation. ISSN 0006-3207. 236, p. 420-434
0006-3207
10.1016/j.biocon.2019.05.038
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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