Rehabilitation and release of confiscated songbirds into the wild : a pilot study
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/257309 |
Resumo: | Songbirds are currently the most prevalent animals in illegal traffcking in Brazil and other countries, so they are often confiscated, and this poses legal, ethical, and conservation challenges. Returning them to nature requires complex and expensive management, a topic that is sparingly addressed in the literature. Here, we described the processes and costs associated with an attempt to rehabilitate and release confiscated songbirds into the wild. A total of 1,721 songbirds of several species were quarantined, rehabilitated, and released, primarily on two farms located within their typical geographical distribution. Health assessments were performed on samples from 370 birds. Serology revealed no antibodies against Newcastle disease, and Salmonella spp. cultures were negative. Real-time polymerase chain reactions detected M. gallisepticumin samples from seven birds. Atoxoplasma spp. and Acuaria spp. infections, sepsis, and trauma were the top causes of bird death. About 6% of the released birds were recaptured, within an average period of 249 days after release, and at a mean distance of 2,397 meters from the release sites. The majority of these birds were found with free-living mates within or close to fragments of transitional ecoregions with native or cultivated grasslands, and native groves/forests, and shrublands. However, eucalyptus plantations with rich understory regeneration provided a suitable environment for the released forest species to settle, since they were recaptured during the defense of these sites. Over half of the recaptured birds presented behavioral profiles with both dominant and tame traits. Birds with dominant traits are more likely to settle in habitats and face the live decoys during fieldwork, whereas birds with tame characteristics tend to accept close contact with humans. Ultramarine grosbeak (Cyanoloxia brissonii), the least common species among those released, at the release sites showed an almost 2-fold recapture rate in the shortest mean distances from the release sites. This suggests less territory competition, perhaps a major factor of bird re-establishment here. The total per-bird cost was USD 57. Our findings suggested suitable survival and re-establishment of confiscated songbirds in the wild, when managed as we describe. |
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Cruz, Claudio Estevao Farias daDriemeier, DavidSonne, LucianaPavarini, Saulo PetinattiPanziera, WeldenFünkler, Gustavo da RosaBöelter, Nicole SchulzHomem, Juan Lucca CostaSoares, Camila Eloine da SilvaTres, Gabrielle ZanettiniSilva, Vitor Gabriel Cardozo daCorrea, Miguel LeonettiCaporal, Francisco José MachadoMarques, Sandra Marcia TietzSoares, João FábioWagner, Paulo Guilherme CarnielCastro Neto, Walter de Nisa eAndretta, Ines2023-04-20T03:21:57Z20232297-1769http://hdl.handle.net/10183/257309001166681Songbirds are currently the most prevalent animals in illegal traffcking in Brazil and other countries, so they are often confiscated, and this poses legal, ethical, and conservation challenges. Returning them to nature requires complex and expensive management, a topic that is sparingly addressed in the literature. Here, we described the processes and costs associated with an attempt to rehabilitate and release confiscated songbirds into the wild. A total of 1,721 songbirds of several species were quarantined, rehabilitated, and released, primarily on two farms located within their typical geographical distribution. Health assessments were performed on samples from 370 birds. Serology revealed no antibodies against Newcastle disease, and Salmonella spp. cultures were negative. Real-time polymerase chain reactions detected M. gallisepticumin samples from seven birds. Atoxoplasma spp. and Acuaria spp. infections, sepsis, and trauma were the top causes of bird death. About 6% of the released birds were recaptured, within an average period of 249 days after release, and at a mean distance of 2,397 meters from the release sites. The majority of these birds were found with free-living mates within or close to fragments of transitional ecoregions with native or cultivated grasslands, and native groves/forests, and shrublands. However, eucalyptus plantations with rich understory regeneration provided a suitable environment for the released forest species to settle, since they were recaptured during the defense of these sites. Over half of the recaptured birds presented behavioral profiles with both dominant and tame traits. Birds with dominant traits are more likely to settle in habitats and face the live decoys during fieldwork, whereas birds with tame characteristics tend to accept close contact with humans. Ultramarine grosbeak (Cyanoloxia brissonii), the least common species among those released, at the release sites showed an almost 2-fold recapture rate in the shortest mean distances from the release sites. This suggests less territory competition, perhaps a major factor of bird re-establishment here. The total per-bird cost was USD 57. Our findings suggested suitable survival and re-establishment of confiscated songbirds in the wild, when managed as we describe.application/pdfengFrontiers in Veterinary Science. Lausanne. Vol. 10 (Mar. 2023), 1109568, 15 p.Aves canorasReabilitaçãoPlantações florestaisCustos financeirosDoenças dos animaisSeized passerinesRehabilitation and releasePost-release monitoringPathological findingsFinancial costsLive decoysAtoxoplasmaRehabilitation and release of confiscated songbirds into the wild : a pilot studyEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001166681.pdf.txt001166681.pdf.txtExtracted Texttext/plain91785http://www.lume.ufrgs.br/bitstream/10183/257309/2/001166681.pdf.txtbae9d9fcf0e9246704b32469ff068f78MD52ORIGINAL001166681.pdfTexto completo (inglês)application/pdf1117141http://www.lume.ufrgs.br/bitstream/10183/257309/1/001166681.pdfa0e7358429ea63b99393e003d8277c94MD5110183/2573092023-04-28 03:56:19.997412oai:www.lume.ufrgs.br:10183/257309Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-04-28T06:56:19Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Rehabilitation and release of confiscated songbirds into the wild : a pilot study |
title |
Rehabilitation and release of confiscated songbirds into the wild : a pilot study |
spellingShingle |
Rehabilitation and release of confiscated songbirds into the wild : a pilot study Cruz, Claudio Estevao Farias da Aves canoras Reabilitação Plantações florestais Custos financeiros Doenças dos animais Seized passerines Rehabilitation and release Post-release monitoring Pathological findings Financial costs Live decoys Atoxoplasma |
title_short |
Rehabilitation and release of confiscated songbirds into the wild : a pilot study |
title_full |
Rehabilitation and release of confiscated songbirds into the wild : a pilot study |
title_fullStr |
Rehabilitation and release of confiscated songbirds into the wild : a pilot study |
title_full_unstemmed |
Rehabilitation and release of confiscated songbirds into the wild : a pilot study |
title_sort |
Rehabilitation and release of confiscated songbirds into the wild : a pilot study |
author |
Cruz, Claudio Estevao Farias da |
author_facet |
Cruz, Claudio Estevao Farias da Driemeier, David Sonne, Luciana Pavarini, Saulo Petinatti Panziera, Welden Fünkler, Gustavo da Rosa Böelter, Nicole Schulz Homem, Juan Lucca Costa Soares, Camila Eloine da Silva Tres, Gabrielle Zanettini Silva, Vitor Gabriel Cardozo da Correa, Miguel Leonetti Caporal, Francisco José Machado Marques, Sandra Marcia Tietz Soares, João Fábio Wagner, Paulo Guilherme Carniel Castro Neto, Walter de Nisa e Andretta, Ines |
author_role |
author |
author2 |
Driemeier, David Sonne, Luciana Pavarini, Saulo Petinatti Panziera, Welden Fünkler, Gustavo da Rosa Böelter, Nicole Schulz Homem, Juan Lucca Costa Soares, Camila Eloine da Silva Tres, Gabrielle Zanettini Silva, Vitor Gabriel Cardozo da Correa, Miguel Leonetti Caporal, Francisco José Machado Marques, Sandra Marcia Tietz Soares, João Fábio Wagner, Paulo Guilherme Carniel Castro Neto, Walter de Nisa e Andretta, Ines |
author2_role |
author author author author author author author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Cruz, Claudio Estevao Farias da Driemeier, David Sonne, Luciana Pavarini, Saulo Petinatti Panziera, Welden Fünkler, Gustavo da Rosa Böelter, Nicole Schulz Homem, Juan Lucca Costa Soares, Camila Eloine da Silva Tres, Gabrielle Zanettini Silva, Vitor Gabriel Cardozo da Correa, Miguel Leonetti Caporal, Francisco José Machado Marques, Sandra Marcia Tietz Soares, João Fábio Wagner, Paulo Guilherme Carniel Castro Neto, Walter de Nisa e Andretta, Ines |
dc.subject.por.fl_str_mv |
Aves canoras Reabilitação Plantações florestais Custos financeiros Doenças dos animais |
topic |
Aves canoras Reabilitação Plantações florestais Custos financeiros Doenças dos animais Seized passerines Rehabilitation and release Post-release monitoring Pathological findings Financial costs Live decoys Atoxoplasma |
dc.subject.eng.fl_str_mv |
Seized passerines Rehabilitation and release Post-release monitoring Pathological findings Financial costs Live decoys Atoxoplasma |
description |
Songbirds are currently the most prevalent animals in illegal traffcking in Brazil and other countries, so they are often confiscated, and this poses legal, ethical, and conservation challenges. Returning them to nature requires complex and expensive management, a topic that is sparingly addressed in the literature. Here, we described the processes and costs associated with an attempt to rehabilitate and release confiscated songbirds into the wild. A total of 1,721 songbirds of several species were quarantined, rehabilitated, and released, primarily on two farms located within their typical geographical distribution. Health assessments were performed on samples from 370 birds. Serology revealed no antibodies against Newcastle disease, and Salmonella spp. cultures were negative. Real-time polymerase chain reactions detected M. gallisepticumin samples from seven birds. Atoxoplasma spp. and Acuaria spp. infections, sepsis, and trauma were the top causes of bird death. About 6% of the released birds were recaptured, within an average period of 249 days after release, and at a mean distance of 2,397 meters from the release sites. The majority of these birds were found with free-living mates within or close to fragments of transitional ecoregions with native or cultivated grasslands, and native groves/forests, and shrublands. However, eucalyptus plantations with rich understory regeneration provided a suitable environment for the released forest species to settle, since they were recaptured during the defense of these sites. Over half of the recaptured birds presented behavioral profiles with both dominant and tame traits. Birds with dominant traits are more likely to settle in habitats and face the live decoys during fieldwork, whereas birds with tame characteristics tend to accept close contact with humans. Ultramarine grosbeak (Cyanoloxia brissonii), the least common species among those released, at the release sites showed an almost 2-fold recapture rate in the shortest mean distances from the release sites. This suggests less territory competition, perhaps a major factor of bird re-establishment here. The total per-bird cost was USD 57. Our findings suggested suitable survival and re-establishment of confiscated songbirds in the wild, when managed as we describe. |
publishDate |
2023 |
dc.date.accessioned.fl_str_mv |
2023-04-20T03:21:57Z |
dc.date.issued.fl_str_mv |
2023 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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http://hdl.handle.net/10183/257309 |
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2297-1769 |
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001166681 |
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http://hdl.handle.net/10183/257309 |
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eng |
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eng |
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Frontiers in Veterinary Science. Lausanne. Vol. 10 (Mar. 2023), 1109568, 15 p. |
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openAccess |
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