Disentangling the seasonal effects of agricultural intensification on birds and bats in Mediterranean olive groves
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , , , , |
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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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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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 instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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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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1799137795398172672 |