Estimating the influence of overhead transmission power lines and landscape context on the density of little bustard Tetrax tetrax breeding populations.

Detalhes bibliográficos
Autor(a) principal: Silva, João Paulo
Data de Publicação: 2010
Outros Autores: Santos, Mário, Queirós, Luís, Leitão, Domingos, Moreira, Francisco, Pinto, Márcia, Leqoc, Miguel, Cabral, João Alexandre
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10348/4309
Resumo: Collision with conductors and earth cables is a known impact generated by transmission power lines, however there is virtually no information on how these infrastructures might affect bird distribution in a landscape context. With this work we specifically hypothesise that transmission power lines may affect the occurrence of a threatened bird, the little bustard (Tetrax tetrax). To test this hypothesis we used a Stochastic Dynamic Methodology (StDM), analysing the effects of power lines in a landscape perspective and simulating population trends as a response to power line installation and habitat changes induced by agricultural shifts in southern Portugal. The data used in the dynamic model construction included relevant gradients of environmental conditions and was sampled during the breeding seasons of 2003–2006. Transmission power lines were significantly avoided by the little bustard and the developed StDM model showed that the distance to these utility structures is the most important factor determining breeding densities in sites with suitable habitat for the species, which possibly leads to displacement of populations and habitat fragmentation. The model simulations also provided the base to analyse the cumulative effects caused by the habitat degradation that can ultimately lead to the extinction of local populations. Within priority conservation sites, the dismantling of existing transmission lines should be considered whenever possible, in order to ensure adequate breeding habitat. The model is considered useful as an auxiliary tool to be used in environmental impact assessments, management and conservation studies
id RCAP_b6154fc016727cf14335e406f213ae46
oai_identifier_str oai:repositorio.utad.pt:10348/4309
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Estimating the influence of overhead transmission power lines and landscape context on the density of little bustard Tetrax tetrax breeding populations.Tetrax tetraxTransmission power linesStochastic Dynamic MethodologyAvoidanceDisplacementLand use changesCollision with conductors and earth cables is a known impact generated by transmission power lines, however there is virtually no information on how these infrastructures might affect bird distribution in a landscape context. With this work we specifically hypothesise that transmission power lines may affect the occurrence of a threatened bird, the little bustard (Tetrax tetrax). To test this hypothesis we used a Stochastic Dynamic Methodology (StDM), analysing the effects of power lines in a landscape perspective and simulating population trends as a response to power line installation and habitat changes induced by agricultural shifts in southern Portugal. The data used in the dynamic model construction included relevant gradients of environmental conditions and was sampled during the breeding seasons of 2003–2006. Transmission power lines were significantly avoided by the little bustard and the developed StDM model showed that the distance to these utility structures is the most important factor determining breeding densities in sites with suitable habitat for the species, which possibly leads to displacement of populations and habitat fragmentation. The model simulations also provided the base to analyse the cumulative effects caused by the habitat degradation that can ultimately lead to the extinction of local populations. Within priority conservation sites, the dismantling of existing transmission lines should be considered whenever possible, in order to ensure adequate breeding habitat. The model is considered useful as an auxiliary tool to be used in environmental impact assessments, management and conservation studies2015-03-17T15:11:41Z2010-01-01T00:00:00Z2010info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10348/4309engdoi:10.1016/j.ecolmodel.2010.03.027metadata only accessinfo:eu-repo/semantics/openAccessSilva, João PauloSantos, MárioQueirós, LuísLeitão, DomingosMoreira, FranciscoPinto, MárciaLeqoc, MiguelCabral, João Alexandrereponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-02T12:58:39Zoai:repositorio.utad.pt:10348/4309Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:06:51.053362Repositório 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 Estimating the influence of overhead transmission power lines and landscape context on the density of little bustard Tetrax tetrax breeding populations.
title Estimating the influence of overhead transmission power lines and landscape context on the density of little bustard Tetrax tetrax breeding populations.
spellingShingle Estimating the influence of overhead transmission power lines and landscape context on the density of little bustard Tetrax tetrax breeding populations.
Silva, João Paulo
Tetrax tetrax
Transmission power lines
Stochastic Dynamic Methodology
Avoidance
Displacement
Land use changes
title_short Estimating the influence of overhead transmission power lines and landscape context on the density of little bustard Tetrax tetrax breeding populations.
title_full Estimating the influence of overhead transmission power lines and landscape context on the density of little bustard Tetrax tetrax breeding populations.
title_fullStr Estimating the influence of overhead transmission power lines and landscape context on the density of little bustard Tetrax tetrax breeding populations.
title_full_unstemmed Estimating the influence of overhead transmission power lines and landscape context on the density of little bustard Tetrax tetrax breeding populations.
title_sort Estimating the influence of overhead transmission power lines and landscape context on the density of little bustard Tetrax tetrax breeding populations.
author Silva, João Paulo
author_facet Silva, João Paulo
Santos, Mário
Queirós, Luís
Leitão, Domingos
Moreira, Francisco
Pinto, Márcia
Leqoc, Miguel
Cabral, João Alexandre
author_role author
author2 Santos, Mário
Queirós, Luís
Leitão, Domingos
Moreira, Francisco
Pinto, Márcia
Leqoc, Miguel
Cabral, João Alexandre
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Silva, João Paulo
Santos, Mário
Queirós, Luís
Leitão, Domingos
Moreira, Francisco
Pinto, Márcia
Leqoc, Miguel
Cabral, João Alexandre
dc.subject.por.fl_str_mv Tetrax tetrax
Transmission power lines
Stochastic Dynamic Methodology
Avoidance
Displacement
Land use changes
topic Tetrax tetrax
Transmission power lines
Stochastic Dynamic Methodology
Avoidance
Displacement
Land use changes
description Collision with conductors and earth cables is a known impact generated by transmission power lines, however there is virtually no information on how these infrastructures might affect bird distribution in a landscape context. With this work we specifically hypothesise that transmission power lines may affect the occurrence of a threatened bird, the little bustard (Tetrax tetrax). To test this hypothesis we used a Stochastic Dynamic Methodology (StDM), analysing the effects of power lines in a landscape perspective and simulating population trends as a response to power line installation and habitat changes induced by agricultural shifts in southern Portugal. The data used in the dynamic model construction included relevant gradients of environmental conditions and was sampled during the breeding seasons of 2003–2006. Transmission power lines were significantly avoided by the little bustard and the developed StDM model showed that the distance to these utility structures is the most important factor determining breeding densities in sites with suitable habitat for the species, which possibly leads to displacement of populations and habitat fragmentation. The model simulations also provided the base to analyse the cumulative effects caused by the habitat degradation that can ultimately lead to the extinction of local populations. Within priority conservation sites, the dismantling of existing transmission lines should be considered whenever possible, in order to ensure adequate breeding habitat. The model is considered useful as an auxiliary tool to be used in environmental impact assessments, management and conservation studies
publishDate 2010
dc.date.none.fl_str_mv 2010-01-01T00:00:00Z
2010
2015-03-17T15:11:41Z
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/10348/4309
url http://hdl.handle.net/10348/4309
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv doi:10.1016/j.ecolmodel.2010.03.027
dc.rights.driver.fl_str_mv metadata only access
info:eu-repo/semantics/openAccess
rights_invalid_str_mv metadata only access
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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
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
repository.mail.fl_str_mv
_version_ 1799137156948557824