Are there differences in point count results between the first six hours after sunrise in subtropical forest bird communities?

We compared species richness, abundance and composition of bird communities during each of the first 6 h after dawn in two types of forests in Entre Ríos, Argentina, in four seasons of 2016. Richness in each of the 6 h was similar. Additionally, richness, abundance and composition of bird communitie...

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Bibliographic Details
Published in:Journal of ornithology 2019-07, Vol.160 (3), p.819-823
Main Authors: Frutos, Antonio E., Reales, Fabricio, Lammertink, Martjan, Piña, Carlos I.
Format: Article
Language:English
Subjects:
Abundance
Biomedical and Life Sciences
Birds
Ecology
Fish & Wildlife Biology & Management
Life Sciences
Short Communication
Species richness
Tropical forests
Zoology
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Summary:We compared species richness, abundance and composition of bird communities during each of the first 6 h after dawn in two types of forests in Entre Ríos, Argentina, in four seasons of 2016. Richness in each of the 6 h was similar. Additionally, richness, abundance and composition of bird communities in summer, autumn and spring were similar between the last 2 h and at least 3 of the first 4 h after dawn. We recommend counting birds in subtropical forests during the first 6 h after dawn, except in winter, when a marked drop in abundance occurs in the course of the morning.
ISSN:2193-7192
2193-7206
DOI:10.1007/s10336-019-01651-0