Data/hora: 06/06/2024 08:47:46

Provedor de dados: | 104
País: | Brazil
Título: | Diurnal and seasonal variability in bird counts in a forest fragment in southeastern Brazil
Autores: | Antunes,Alexsander Z.
Data: | 2008-06-01
Ano: | 2008
Palavras-chave: | Atlantic Forest; Census; Detection; Seasonal variation; Transects.
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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000200011
Editor: | Sociedade Brasileira de Zoologia
Relação: | 10.1590/S0101-81752008000200011
Formato: | text/html
Fonte: | Revista Brasileira de Zoologia  v.25 n.2 2008
Fonte: | info:eu-repo/semantics/openAccess