Human pressures constrain Eurasian otter occurrence in semiarid Northern Africa

Populations inhabiting the periphery of species distribution ranges may experience suboptimal environmental conditions and higher vulnerability to anthropogenic pressures. Disentangling the role of natural and human-related factors and the relationships among them in these marginal areas is thus key...

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Detalles Bibliográficos
Autores: Calzada Samperio, Javier, Clavero Pineda, Miguel, Delibes Castro, Miguel, Fernández, Néstor
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:ariasmontano.uhu.es:10272/20900
Acceso en línea:http://hdl.handle.net/10272/20900
Access Level:acceso abierto
Palabra clave:Population conservation
Lutra lutra
Peripheral populations
Arid rivers
Morocco
2401 Biología Animal (Zoología)
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spelling Human pressures constrain Eurasian otter occurrence in semiarid Northern AfricaCalzada Samperio, JavierClavero Pineda, MiguelDelibes Castro, MiguelFernández, NéstorPopulation conservationLutra lutraPeripheral populationsArid riversMorocco2401 Biología Animal (Zoología)Populations inhabiting the periphery of species distribution ranges may experience suboptimal environmental conditions and higher vulnerability to anthropogenic pressures. Disentangling the role of natural and human-related factors and the relationships among them in these marginal areas is thus key to understand and prevent species declines and range reductions. We analysed Eurasian otter (Lutra lutra) occurrence patterns in relation to anthropogenic pressures and natural environmental gradients in Morocco, an area constituting the arid limit of the species’ global range. The probability of otter occurrence was higher as terrain ruggedness increased and at intermediate elevations, and lower in catchments exposed to higher anthropogenic pressures. Otters tended to be rare at higher elevations and in areas with less annual precipitation, probably as a result of trophic resource limitations and large water flow fluctuations, respectively. A combination of natural and anthropogenic factors, both at drainage area and local scales, was needed to understand the current occurrence of the species. Our study highlights a need for urgent action to conserve the Eurasian otter in northern Africa, where freshwater ecosystems and their associated biodiversity are threatened by rapid human development in areas of marginal climatic conditions. Springer20222022-01-0120222022-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10272/20900reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/209002026-06-02T14:58:11Z
dc.title.none.fl_str_mv Human pressures constrain Eurasian otter occurrence in semiarid Northern Africa
title Human pressures constrain Eurasian otter occurrence in semiarid Northern Africa
spellingShingle Human pressures constrain Eurasian otter occurrence in semiarid Northern Africa
Calzada Samperio, Javier
Population conservation
Lutra lutra
Peripheral populations
Arid rivers
Morocco
2401 Biología Animal (Zoología)
title_short Human pressures constrain Eurasian otter occurrence in semiarid Northern Africa
title_full Human pressures constrain Eurasian otter occurrence in semiarid Northern Africa
title_fullStr Human pressures constrain Eurasian otter occurrence in semiarid Northern Africa
title_full_unstemmed Human pressures constrain Eurasian otter occurrence in semiarid Northern Africa
title_sort Human pressures constrain Eurasian otter occurrence in semiarid Northern Africa
dc.creator.none.fl_str_mv Calzada Samperio, Javier
Clavero Pineda, Miguel
Delibes Castro, Miguel
Fernández, Néstor
author Calzada Samperio, Javier
author_facet Calzada Samperio, Javier
Clavero Pineda, Miguel
Delibes Castro, Miguel
Fernández, Néstor
author_role author
author2 Clavero Pineda, Miguel
Delibes Castro, Miguel
Fernández, Néstor
author2_role author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Population conservation
Lutra lutra
Peripheral populations
Arid rivers
Morocco
2401 Biología Animal (Zoología)
topic Population conservation
Lutra lutra
Peripheral populations
Arid rivers
Morocco
2401 Biología Animal (Zoología)
description Populations inhabiting the periphery of species distribution ranges may experience suboptimal environmental conditions and higher vulnerability to anthropogenic pressures. Disentangling the role of natural and human-related factors and the relationships among them in these marginal areas is thus key to understand and prevent species declines and range reductions. We analysed Eurasian otter (Lutra lutra) occurrence patterns in relation to anthropogenic pressures and natural environmental gradients in Morocco, an area constituting the arid limit of the species’ global range. The probability of otter occurrence was higher as terrain ruggedness increased and at intermediate elevations, and lower in catchments exposed to higher anthropogenic pressures. Otters tended to be rare at higher elevations and in areas with less annual precipitation, probably as a result of trophic resource limitations and large water flow fluctuations, respectively. A combination of natural and anthropogenic factors, both at drainage area and local scales, was needed to understand the current occurrence of the species. Our study highlights a need for urgent action to conserve the Eurasian otter in northern Africa, where freshwater ecosystems and their associated biodiversity are threatened by rapid human development in areas of marginal climatic conditions.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-01-01
2022
2022-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10272/20900
url http://hdl.handle.net/10272/20900
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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