Disentangling the seasonal effects of agricultural intensification on birds and bats in Mediterranean olive groves

Detalhes bibliográficos
Autor(a) principal: Jiménez-Navarro, Gerardo
Data de Publicação: 2023
Outros Autores: Rodríguez-Pérez, Javier, Melguizo-Ruiz, Nereida, Silva, Bruno, Vasconcelos, Sasha, Beja, Pedro, Moreira, Francisco, Morgado, Rui, Barreiro, Silvia, Herrera, José M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/30274
Resumo: Assessing the spatio-temporal impact of agricultural intensification on species and communities is key for biodiversity conservation. Here, we investigated the seasonal effects of olive grove intensification at both local (farming practices and grove structural complexity) and landscape scale (land-cover diversity) on birds and bats, at species and community-level. Both groups were surveyed during spring, summer, and autumn in 60 sites representing varying levels of olive grove intensification throughout the Alentejo region (southern Portugal). At the local scale, the number of chemical applications was used as a proxy for the intensification of farming practices and a Structural Index, which accounted for within-grove variability in tree density and features, was used as a measure of grove structural complexity. At landscape scale, we quantified the proportion of the major land-cover types potentially affecting birds and bats. We found that the abundance of ca. 77% of the species analyzed (ca. 84% and 55% of birds and bats respectively) was negatively related to olive grove intensification in at least one season. The Structural Index was the most influential factor at both species and community-levels, especially for birds, with a consistent and strong effect across seasons. Chemical applications had a stronger negative effect on birds, whereas the amount of olive grove cover had a stronger detrimental effect on bats. Birds and bats showed a variable response to predictor variables depending on the season, particularly for the bat community. Our study shows differences in bird and bat responses associated with the spatio-temporal variability of the agricultural intensification components. On the one hand, birds and bats showed a seasonal pattern of association with the different components of olive grove intensification, probably due to their ecological and biological requirements. On the other hand, the responses of both groups also appear to be scale-dependent: while birds seem to respond to in-farm or local intensification more strongly, bats seem to be more influenced by landscape-scale simplification. Overall, we highlight the importance of the structural complexity of olive groves for birds and bats, an aspect that should be considered in the design of agricultural policies aiming to promote biodiversity conservation.
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spelling Disentangling the seasonal effects of agricultural intensification on birds and bats in Mediterranean olive grovesagricultural intensificationolive grovesbirds and batsgrove structural complexitybiodiversity conservation in agroecosystemsAssessing the spatio-temporal impact of agricultural intensification on species and communities is key for biodiversity conservation. Here, we investigated the seasonal effects of olive grove intensification at both local (farming practices and grove structural complexity) and landscape scale (land-cover diversity) on birds and bats, at species and community-level. Both groups were surveyed during spring, summer, and autumn in 60 sites representing varying levels of olive grove intensification throughout the Alentejo region (southern Portugal). At the local scale, the number of chemical applications was used as a proxy for the intensification of farming practices and a Structural Index, which accounted for within-grove variability in tree density and features, was used as a measure of grove structural complexity. At landscape scale, we quantified the proportion of the major land-cover types potentially affecting birds and bats. We found that the abundance of ca. 77% of the species analyzed (ca. 84% and 55% of birds and bats respectively) was negatively related to olive grove intensification in at least one season. The Structural Index was the most influential factor at both species and community-levels, especially for birds, with a consistent and strong effect across seasons. Chemical applications had a stronger negative effect on birds, whereas the amount of olive grove cover had a stronger detrimental effect on bats. Birds and bats showed a variable response to predictor variables depending on the season, particularly for the bat community. Our study shows differences in bird and bat responses associated with the spatio-temporal variability of the agricultural intensification components. On the one hand, birds and bats showed a seasonal pattern of association with the different components of olive grove intensification, probably due to their ecological and biological requirements. On the other hand, the responses of both groups also appear to be scale-dependent: while birds seem to respond to in-farm or local intensification more strongly, bats seem to be more influenced by landscape-scale simplification. Overall, we highlight the importance of the structural complexity of olive groves for birds and bats, an aspect that should be considered in the design of agricultural policies aiming to promote biodiversity conservation.ElsevierRepositório da Universidade de LisboaJiménez-Navarro, GerardoRodríguez-Pérez, JavierMelguizo-Ruiz, NereidaSilva, BrunoVasconcelos, SashaBeja, PedroMoreira, FranciscoMorgado, RuiBarreiro, SilviaHerrera, José M.2024-03-04T19:43:09Z2023-022023-02-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/30274engAlvarenga, Paula, et al. “Evaluation of the Fertilizer Potential of Chlorella Vulgaris and Scenedesmus Obliquus Grown in Agricultural Drainage Water from Maize Fields.” Science of The Total Environment, vol. 861, Feb. 2023, p. 160670.10.1016/j.scitotenv.2022.160670info: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:RCAAP2024-03-10T01:34:29Zoai:www.repository.utl.pt:10400.5/30274Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:14:15.574030Repositório 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 Disentangling the seasonal effects of agricultural intensification on birds and bats in Mediterranean olive groves
title Disentangling the seasonal effects of agricultural intensification on birds and bats in Mediterranean olive groves
spellingShingle Disentangling the seasonal effects of agricultural intensification on birds and bats in Mediterranean olive groves
Jiménez-Navarro, Gerardo
agricultural intensification
olive groves
birds and bats
grove structural complexity
biodiversity conservation in agroecosystems
title_short Disentangling the seasonal effects of agricultural intensification on birds and bats in Mediterranean olive groves
title_full Disentangling the seasonal effects of agricultural intensification on birds and bats in Mediterranean olive groves
title_fullStr Disentangling the seasonal effects of agricultural intensification on birds and bats in Mediterranean olive groves
title_full_unstemmed Disentangling the seasonal effects of agricultural intensification on birds and bats in Mediterranean olive groves
title_sort Disentangling the seasonal effects of agricultural intensification on birds and bats in Mediterranean olive groves
author Jiménez-Navarro, Gerardo
author_facet Jiménez-Navarro, Gerardo
Rodríguez-Pérez, Javier
Melguizo-Ruiz, Nereida
Silva, Bruno
Vasconcelos, Sasha
Beja, Pedro
Moreira, Francisco
Morgado, Rui
Barreiro, Silvia
Herrera, José M.
author_role author
author2 Rodríguez-Pérez, Javier
Melguizo-Ruiz, Nereida
Silva, Bruno
Vasconcelos, Sasha
Beja, Pedro
Moreira, Francisco
Morgado, Rui
Barreiro, Silvia
Herrera, José M.
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Jiménez-Navarro, Gerardo
Rodríguez-Pérez, Javier
Melguizo-Ruiz, Nereida
Silva, Bruno
Vasconcelos, Sasha
Beja, Pedro
Moreira, Francisco
Morgado, Rui
Barreiro, Silvia
Herrera, José M.
dc.subject.por.fl_str_mv agricultural intensification
olive groves
birds and bats
grove structural complexity
biodiversity conservation in agroecosystems
topic agricultural intensification
olive groves
birds and bats
grove structural complexity
biodiversity conservation in agroecosystems
description Assessing the spatio-temporal impact of agricultural intensification on species and communities is key for biodiversity conservation. Here, we investigated the seasonal effects of olive grove intensification at both local (farming practices and grove structural complexity) and landscape scale (land-cover diversity) on birds and bats, at species and community-level. Both groups were surveyed during spring, summer, and autumn in 60 sites representing varying levels of olive grove intensification throughout the Alentejo region (southern Portugal). At the local scale, the number of chemical applications was used as a proxy for the intensification of farming practices and a Structural Index, which accounted for within-grove variability in tree density and features, was used as a measure of grove structural complexity. At landscape scale, we quantified the proportion of the major land-cover types potentially affecting birds and bats. We found that the abundance of ca. 77% of the species analyzed (ca. 84% and 55% of birds and bats respectively) was negatively related to olive grove intensification in at least one season. The Structural Index was the most influential factor at both species and community-levels, especially for birds, with a consistent and strong effect across seasons. Chemical applications had a stronger negative effect on birds, whereas the amount of olive grove cover had a stronger detrimental effect on bats. Birds and bats showed a variable response to predictor variables depending on the season, particularly for the bat community. Our study shows differences in bird and bat responses associated with the spatio-temporal variability of the agricultural intensification components. On the one hand, birds and bats showed a seasonal pattern of association with the different components of olive grove intensification, probably due to their ecological and biological requirements. On the other hand, the responses of both groups also appear to be scale-dependent: while birds seem to respond to in-farm or local intensification more strongly, bats seem to be more influenced by landscape-scale simplification. Overall, we highlight the importance of the structural complexity of olive groves for birds and bats, an aspect that should be considered in the design of agricultural policies aiming to promote biodiversity conservation.
publishDate 2023
dc.date.none.fl_str_mv 2023-02
2023-02-01T00:00:00Z
2024-03-04T19:43:09Z
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/10400.5/30274
url http://hdl.handle.net/10400.5/30274
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Alvarenga, Paula, et al. “Evaluation of the Fertilizer Potential of Chlorella Vulgaris and Scenedesmus Obliquus Grown in Agricultural Drainage Water from Maize Fields.” Science of The Total Environment, vol. 861, Feb. 2023, p. 160670.
10.1016/j.scitotenv.2022.160670
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.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
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instname_str 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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