Diurnal and seasonal variability in bird counts in a forest fragment in southeastern Brazil

Detalhes bibliográficos
Autor(a) principal: Antunes,Alexsander Z.
Data de Publicação: 2008
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Zoologia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000200011
Resumo: Diurnal variation in detection can influence bird census results. I measured variation in daily and seasonal detections of birds in a forest fragment at Barreiro Rico ranch, Anhembi, state of São Paulo. Birds were recorded on transects of unlimited distance, sampled one day per month, dawn to dusk, between December 2000 and March 2001 (rainy season) and between May and August 2001 (dry season). Significant daily variation in detection occurred during the rainy season, with most detections between dawn and 9 h. In the dry season detections declined for total numbers of individuals and species and most detections occurred during late morning and mid afternoon. Detection patterns might reflect seasonal variation in bird behavior rather than seasonal variation in species composition.
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spelling Diurnal and seasonal variability in bird counts in a forest fragment in southeastern BrazilAtlantic Forestcensusdetectionseasonal variationtransectsDiurnal variation in detection can influence bird census results. I measured variation in daily and seasonal detections of birds in a forest fragment at Barreiro Rico ranch, Anhembi, state of São Paulo. Birds were recorded on transects of unlimited distance, sampled one day per month, dawn to dusk, between December 2000 and March 2001 (rainy season) and between May and August 2001 (dry season). Significant daily variation in detection occurred during the rainy season, with most detections between dawn and 9 h. In the dry season detections declined for total numbers of individuals and species and most detections occurred during late morning and mid afternoon. Detection patterns might reflect seasonal variation in bird behavior rather than seasonal variation in species composition.Sociedade Brasileira de Zoologia2008-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000200011Revista Brasileira de Zoologia v.25 n.2 2008reponame:Revista Brasileira de Zoologia (Online)instname:Sociedade Brasileira de Zoologia (SBZ)instacron:SBZ10.1590/S0101-81752008000200011info:eu-repo/semantics/openAccessAntunes,Alexsander Z.eng2008-07-25T00:00:00Zoai:scielo:S0101-81752008000200011Revistahttp://calvados.c3sl.ufpr.br/ojs2/index.php/zooONGhttps://old.scielo.br/oai/scielo-oai.php||sbz@bio.ufpr.br1806-969X0101-8175opendoar:2008-07-25T00:00Revista Brasileira de Zoologia (Online) - Sociedade Brasileira de Zoologia (SBZ)false
dc.title.none.fl_str_mv Diurnal and seasonal variability in bird counts in a forest fragment in southeastern Brazil
title Diurnal and seasonal variability in bird counts in a forest fragment in southeastern Brazil
spellingShingle Diurnal and seasonal variability in bird counts in a forest fragment in southeastern Brazil
Antunes,Alexsander Z.
Atlantic Forest
census
detection
seasonal variation
transects
title_short Diurnal and seasonal variability in bird counts in a forest fragment in southeastern Brazil
title_full Diurnal and seasonal variability in bird counts in a forest fragment in southeastern Brazil
title_fullStr Diurnal and seasonal variability in bird counts in a forest fragment in southeastern Brazil
title_full_unstemmed Diurnal and seasonal variability in bird counts in a forest fragment in southeastern Brazil
title_sort Diurnal and seasonal variability in bird counts in a forest fragment in southeastern Brazil
author Antunes,Alexsander Z.
author_facet Antunes,Alexsander Z.
author_role author
dc.contributor.author.fl_str_mv Antunes,Alexsander Z.
dc.subject.por.fl_str_mv Atlantic Forest
census
detection
seasonal variation
transects
topic Atlantic Forest
census
detection
seasonal variation
transects
description Diurnal variation in detection can influence bird census results. I measured variation in daily and seasonal detections of birds in a forest fragment at Barreiro Rico ranch, Anhembi, state of São Paulo. Birds were recorded on transects of unlimited distance, sampled one day per month, dawn to dusk, between December 2000 and March 2001 (rainy season) and between May and August 2001 (dry season). Significant daily variation in detection occurred during the rainy season, with most detections between dawn and 9 h. In the dry season detections declined for total numbers of individuals and species and most detections occurred during late morning and mid afternoon. Detection patterns might reflect seasonal variation in bird behavior rather than seasonal variation in species composition.
publishDate 2008
dc.date.none.fl_str_mv 2008-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000200011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000200011
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0101-81752008000200011
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Zoologia
publisher.none.fl_str_mv Sociedade Brasileira de Zoologia
dc.source.none.fl_str_mv Revista Brasileira de Zoologia v.25 n.2 2008
reponame:Revista Brasileira de Zoologia (Online)
instname:Sociedade Brasileira de Zoologia (SBZ)
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reponame_str Revista Brasileira de Zoologia (Online)
collection Revista Brasileira de Zoologia (Online)
repository.name.fl_str_mv Revista Brasileira de Zoologia (Online) - Sociedade Brasileira de Zoologia (SBZ)
repository.mail.fl_str_mv ||sbz@bio.ufpr.br
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