Geographical and seasonal distributions of the seedeaters Sporophila bouvreuil and Sporophila pileata (aves: Emberizidae)

Detalhes bibliográficos
Autor(a) principal: Machado, Érika
Data de Publicação: 2010
Outros Autores: Silveira, Luís Fábio
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Papéis Avulsos de Zoologia (Online)
Texto Completo: https://www.revistas.usp.br/paz/article/view/33932
Resumo: Many species in the genus Sporophila are migratory. Migration patterns, while poorly studied, may be influenced by seed production which can be very seasonal in some regions. The distribution of S. bouvreuil extends from the Amazon and Suriname south through a large part of the open regions of Brazil. Sporophila pileata, on the other hand, is found in southeastern and southern Brazil as well as Argentina and Paraguay. Both of these species migrate, but their movement patterns are poorly known. To better understand the geographical and the seasonal distributions of S. bouvreuil and S. pileata, we grouped the records into two categories: the breeding season (September to March) and the putative migration season (April to August). We found two areas of sympatry between S. bouvreuil and S. pileata in the Brazilian states of Minas Gerais and São Paulo. For S. bouvreuil we suggest that populations that breed in the Amazon migrate to the Cerrado or Caatinga, where they will encounter resident populations of the same species. These resident populations may take part in short distance migrations. Sporophila pileata, on the other hand, occur in the Cerrado and open areas within the Atlantic Forest and it is not yet possible to determine migratory tendencies or destinations in the non-breeding season.
id USP-69_cb4001cfcf23fceed94813592112b146
oai_identifier_str oai:revistas.usp.br:article/33932
network_acronym_str USP-69
network_name_str Papéis Avulsos de Zoologia (Online)
repository_id_str
spelling Geographical and seasonal distributions of the seedeaters Sporophila bouvreuil and Sporophila pileata (aves: Emberizidae) AvesCaboclinhoSporophilaMigraçãoSazonalidadeAvesSporophila pileataSporophila bouvreuilMigrationSeasonality Many species in the genus Sporophila are migratory. Migration patterns, while poorly studied, may be influenced by seed production which can be very seasonal in some regions. The distribution of S. bouvreuil extends from the Amazon and Suriname south through a large part of the open regions of Brazil. Sporophila pileata, on the other hand, is found in southeastern and southern Brazil as well as Argentina and Paraguay. Both of these species migrate, but their movement patterns are poorly known. To better understand the geographical and the seasonal distributions of S. bouvreuil and S. pileata, we grouped the records into two categories: the breeding season (September to March) and the putative migration season (April to August). We found two areas of sympatry between S. bouvreuil and S. pileata in the Brazilian states of Minas Gerais and São Paulo. For S. bouvreuil we suggest that populations that breed in the Amazon migrate to the Cerrado or Caatinga, where they will encounter resident populations of the same species. These resident populations may take part in short distance migrations. Sporophila pileata, on the other hand, occur in the Cerrado and open areas within the Atlantic Forest and it is not yet possible to determine migratory tendencies or destinations in the non-breeding season. Muitos representantes do gênero Sporophila são migratórios. Estes movimentos são pouco estudados e podem ser determinados por fatores como a produção de gramíneas, que podem ser altamente sazonais em algumas regiões. A distribuição de Sporophila bouvreuil se estende desde a região amazônica e Suriname passando pelas áreas abertas de boa parte do Brasil, enquanto que S. pileata distribui-se pelo sul e sudeste do Brasil, além da Argentina e Paraguai. Os movimentos migratórios destas duas espécies são pouco conhecidos e há evidências de que algumas populações podem ser residentes durante todo o ano. Com o objetivo de definir a distribuição geográfica e sazonal de S. bouvreuil e S. pileata, os registros foram agrupados em dois tipos, um durante o período reprodutivo (setembro a março) e outro durante os meses de abril a agosto, quando supostamente estas espécies podem migrar. Foram identificadas duas áreas de simpatria entre S. bouvreuil e S. pileata, nos estados de Minas Gerais e São Paulo. Para S. bouvreuil sugere-se que as populações que reproduzem na Amazônia se deslocam para o Cerrado ou a Caatinga, onde se encontram com as populações residentes nestes biomas. As populações desta diagonal seca se reproduzem nestes domínios e provavelmente realizam apenas migrações de curta distância. Na Mata Atlântica parte das populações são residentes, permanecendo neste bioma durante todo o ano. As populações de S. pileata que ocorrem no Cerrado e nas áreas abertas da Mata Atlântica se reproduzem nos seus respectivos biomas, mas não foi possível identificar as possíveis áreas de invernagem para esta espécie. Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).2010-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/paz/article/view/3393210.1590/S0031-10492010003200001Papéis Avulsos de Zoologia; v. 50 n. 32 (2010); 517-533 Papéis Avulsos de Zoologia; Vol. 50 Núm. 32 (2010); 517-533 Papéis Avulsos de Zoologia; Vol. 50 No. 32 (2010); 517-533 1807-02050031-1049reponame:Papéis Avulsos de Zoologia (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/paz/article/view/33932/36663Machado, ÉrikaSilveira, Luís Fábioinfo:eu-repo/semantics/openAccess2012-07-20T02:38:43Zoai:revistas.usp.br:article/33932Revistahttps://www.revistas.usp.br/pazPUBhttps://www.revistas.usp.br/paz/oaipublicacaomz@usp.br ; einicker@usp.br1807-02050031-1049opendoar:2023-01-12T16:41:37.277608Papéis Avulsos de Zoologia (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Geographical and seasonal distributions of the seedeaters Sporophila bouvreuil and Sporophila pileata (aves: Emberizidae)
title Geographical and seasonal distributions of the seedeaters Sporophila bouvreuil and Sporophila pileata (aves: Emberizidae)
spellingShingle Geographical and seasonal distributions of the seedeaters Sporophila bouvreuil and Sporophila pileata (aves: Emberizidae)
Machado, Érika
Aves
Caboclinho
Sporophila
Migração
Sazonalidade
Aves
Sporophila pileata
Sporophila bouvreuil
Migration
Seasonality
title_short Geographical and seasonal distributions of the seedeaters Sporophila bouvreuil and Sporophila pileata (aves: Emberizidae)
title_full Geographical and seasonal distributions of the seedeaters Sporophila bouvreuil and Sporophila pileata (aves: Emberizidae)
title_fullStr Geographical and seasonal distributions of the seedeaters Sporophila bouvreuil and Sporophila pileata (aves: Emberizidae)
title_full_unstemmed Geographical and seasonal distributions of the seedeaters Sporophila bouvreuil and Sporophila pileata (aves: Emberizidae)
title_sort Geographical and seasonal distributions of the seedeaters Sporophila bouvreuil and Sporophila pileata (aves: Emberizidae)
author Machado, Érika
author_facet Machado, Érika
Silveira, Luís Fábio
author_role author
author2 Silveira, Luís Fábio
author2_role author
dc.contributor.author.fl_str_mv Machado, Érika
Silveira, Luís Fábio
dc.subject.por.fl_str_mv Aves
Caboclinho
Sporophila
Migração
Sazonalidade
Aves
Sporophila pileata
Sporophila bouvreuil
Migration
Seasonality
topic Aves
Caboclinho
Sporophila
Migração
Sazonalidade
Aves
Sporophila pileata
Sporophila bouvreuil
Migration
Seasonality
description Many species in the genus Sporophila are migratory. Migration patterns, while poorly studied, may be influenced by seed production which can be very seasonal in some regions. The distribution of S. bouvreuil extends from the Amazon and Suriname south through a large part of the open regions of Brazil. Sporophila pileata, on the other hand, is found in southeastern and southern Brazil as well as Argentina and Paraguay. Both of these species migrate, but their movement patterns are poorly known. To better understand the geographical and the seasonal distributions of S. bouvreuil and S. pileata, we grouped the records into two categories: the breeding season (September to March) and the putative migration season (April to August). We found two areas of sympatry between S. bouvreuil and S. pileata in the Brazilian states of Minas Gerais and São Paulo. For S. bouvreuil we suggest that populations that breed in the Amazon migrate to the Cerrado or Caatinga, where they will encounter resident populations of the same species. These resident populations may take part in short distance migrations. Sporophila pileata, on the other hand, occur in the Cerrado and open areas within the Atlantic Forest and it is not yet possible to determine migratory tendencies or destinations in the non-breeding season.
publishDate 2010
dc.date.none.fl_str_mv 2010-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/paz/article/view/33932
10.1590/S0031-10492010003200001
url https://www.revistas.usp.br/paz/article/view/33932
identifier_str_mv 10.1590/S0031-10492010003200001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/paz/article/view/33932/36663
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 Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).
publisher.none.fl_str_mv Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).
dc.source.none.fl_str_mv Papéis Avulsos de Zoologia; v. 50 n. 32 (2010); 517-533
Papéis Avulsos de Zoologia; Vol. 50 Núm. 32 (2010); 517-533
Papéis Avulsos de Zoologia; Vol. 50 No. 32 (2010); 517-533
1807-0205
0031-1049
reponame:Papéis Avulsos de Zoologia (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Papéis Avulsos de Zoologia (Online)
collection Papéis Avulsos de Zoologia (Online)
repository.name.fl_str_mv Papéis Avulsos de Zoologia (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv publicacaomz@usp.br ; einicker@usp.br
_version_ 1797051526836912128

Registros relacionados