Responses of bird communities to habitat structure along an aridity gradient in the steppes north of the Sahara
We explored the influence of habitat structure on bird density and species richness in the poorly known bird communities in the steppes of Eastern Morocco, along a 200 km long N–S gradient of increasing aridity. The birds were surveyed, and habitat structure was measured in 44 transects regularly di...
| Autores: | , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/103788 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/103788 |
| Access Level: | acceso abierto |
| Palabra clave: | 591.5 598.2(64) Aridity Bird assemblages Community variability Larks Mediterranean Morocco Passerines Ecología (Biología) Aves 2401.06 Ecología Animal 2401.20 Ornitología |
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Responses of bird communities to habitat structure along an aridity gradient in the steppes north of the SaharaOñate, Juan J.Suárez, FranciscoCalero-Riestra, MaríaHernández Justribó, JorgeHervás, IsraelGarcía de la Morena, EladioRamírez García, ÁlvaroViñuela, JavierGarcía, Jesús T.591.5598.2(64)AridityBird assemblagesCommunity variabilityLarksMediterraneanMoroccoPasserinesEcología (Biología)Aves2401.06 Ecología Animal2401.20 OrnitologíaWe explored the influence of habitat structure on bird density and species richness in the poorly known bird communities in the steppes of Eastern Morocco, along a 200 km long N–S gradient of increasing aridity. The birds were surveyed, and habitat structure was measured in 44 transects regularly distributed along the gradient and during the winter and spring seasons in two consecutive years. After applying a principal component analysis (PCA), five axes were identified, including one related to the latitude–altitude–soil-type gradient and another describing the development of herbaceous vegetation. Generalized linear models were used to explore the relations between bird density and species richness with PCA axes in each season, considering both the entire community and groups of granivorous, insectivorous, and mixed-diet species. More than 90% of the birds were year-round residents, with larks dominating the community in both seasons. We conclude that a distinct multifactorial response can be identified for each functional group of species. In the winter, the community is mainly affected by the structure of the habitat, while aridity (and its assumed relation to primary production) is less influential. In the spring, habitat structure continues to have the greatest explanatory power, but location along the aridity gradient becomes more relevant. These findings reveal the interaction of the negative effects of climatic and anthropogenic changes in the habitat available to these bird communities, with a greater impact expected on birds with diets that include seeds, as well as a general shift of optimal breeding conditions toward more northerly latitudes.MDPIMDPIUniversidad Complutense de Madrid20232023-06-0220232023-06-02journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/103788reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/1037882026-06-02T12:44:21Z |
| dc.title.none.fl_str_mv |
Responses of bird communities to habitat structure along an aridity gradient in the steppes north of the Sahara |
| title |
Responses of bird communities to habitat structure along an aridity gradient in the steppes north of the Sahara |
| spellingShingle |
Responses of bird communities to habitat structure along an aridity gradient in the steppes north of the Sahara Oñate, Juan J. 591.5 598.2(64) Aridity Bird assemblages Community variability Larks Mediterranean Morocco Passerines Ecología (Biología) Aves 2401.06 Ecología Animal 2401.20 Ornitología |
| title_short |
Responses of bird communities to habitat structure along an aridity gradient in the steppes north of the Sahara |
| title_full |
Responses of bird communities to habitat structure along an aridity gradient in the steppes north of the Sahara |
| title_fullStr |
Responses of bird communities to habitat structure along an aridity gradient in the steppes north of the Sahara |
| title_full_unstemmed |
Responses of bird communities to habitat structure along an aridity gradient in the steppes north of the Sahara |
| title_sort |
Responses of bird communities to habitat structure along an aridity gradient in the steppes north of the Sahara |
| dc.creator.none.fl_str_mv |
Oñate, Juan J. Suárez, Francisco Calero-Riestra, María Hernández Justribó, Jorge Hervás, Israel García de la Morena, Eladio Ramírez García, Álvaro Viñuela, Javier García, Jesús T. |
| author |
Oñate, Juan J. |
| author_facet |
Oñate, Juan J. Suárez, Francisco Calero-Riestra, María Hernández Justribó, Jorge Hervás, Israel García de la Morena, Eladio Ramírez García, Álvaro Viñuela, Javier García, Jesús T. |
| author_role |
author |
| author2 |
Suárez, Francisco Calero-Riestra, María Hernández Justribó, Jorge Hervás, Israel García de la Morena, Eladio Ramírez García, Álvaro Viñuela, Javier García, Jesús T. |
| author2_role |
author author author author author author author author |
| dc.contributor.none.fl_str_mv |
MDPI Universidad Complutense de Madrid |
| dc.subject.none.fl_str_mv |
591.5 598.2(64) Aridity Bird assemblages Community variability Larks Mediterranean Morocco Passerines Ecología (Biología) Aves 2401.06 Ecología Animal 2401.20 Ornitología |
| topic |
591.5 598.2(64) Aridity Bird assemblages Community variability Larks Mediterranean Morocco Passerines Ecología (Biología) Aves 2401.06 Ecología Animal 2401.20 Ornitología |
| description |
We explored the influence of habitat structure on bird density and species richness in the poorly known bird communities in the steppes of Eastern Morocco, along a 200 km long N–S gradient of increasing aridity. The birds were surveyed, and habitat structure was measured in 44 transects regularly distributed along the gradient and during the winter and spring seasons in two consecutive years. After applying a principal component analysis (PCA), five axes were identified, including one related to the latitude–altitude–soil-type gradient and another describing the development of herbaceous vegetation. Generalized linear models were used to explore the relations between bird density and species richness with PCA axes in each season, considering both the entire community and groups of granivorous, insectivorous, and mixed-diet species. More than 90% of the birds were year-round residents, with larks dominating the community in both seasons. We conclude that a distinct multifactorial response can be identified for each functional group of species. In the winter, the community is mainly affected by the structure of the habitat, while aridity (and its assumed relation to primary production) is less influential. In the spring, habitat structure continues to have the greatest explanatory power, but location along the aridity gradient becomes more relevant. These findings reveal the interaction of the negative effects of climatic and anthropogenic changes in the habitat available to these bird communities, with a greater impact expected on birds with diets that include seeds, as well as a general shift of optimal breeding conditions toward more northerly latitudes. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023 2023-06-02 2023 2023-06-02 |
| 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 |
https://hdl.handle.net/20.500.14352/103788 |
| url |
https://hdl.handle.net/20.500.14352/103788 |
| 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 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| 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 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
MDPI |
| publisher.none.fl_str_mv |
MDPI |
| dc.source.none.fl_str_mv |
reponame:Docta Complutense instname:Universidad Complutense de Madrid (UCM) |
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Universidad Complutense de Madrid (UCM) |
| reponame_str |
Docta Complutense |
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Docta Complutense |
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1869406823618969600 |
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15.300724 |