Seasonal variation of estuarine birds from Trapandé Bay, Cananéia, Brazil

dc.contributor.authorRoselli, Larissa Yoshida [UNESP]
dc.contributor.authorBarbieri, Edison
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionGoverno do Estado de São Paulo
dc.date.accessioned2022-04-29T08:41:13Z
dc.date.available2022-04-29T08:41:13Z
dc.date.issued2022-01-01
dc.description.abstractEstuaries are important environments for birds as resting and foraging sites. Therefore, information about the abundance, distribution, and biology of bird populations are necessary for preservation of such ecosystems. In this work, we studied the dynamic population of birds at Baixio do Arrozal, Trapandé Bay, Cananéia Estuary on the southern coast of São Paulo state, Brazil. As an original hypothesis, we expected that the species abundances would display differences across months and seasons. Using the point count method, bird data were collected monthly between April and December 2013. For comparing the assemblages, a bar chart of the total abundance as a function of the monthly frequency was used along with boxplot graph of this index as a function of the seasons. We also investigated variations in the abundance of some specific bird populations. The results obtained for the total abundance indicated a seasonal pattern, peaking during the warmer months. The population analyses showed a greater abundance occurring in spring/summer, and a decrease of resident species populations in the winter. Migratory birds were recorded in the autumn and spring, following the migratory movements. This demonstrated that bird assemblages varied according to seasons due to the life cycle and the population sizes. Therefore, Baixio do Arrozal is an important environment for avifauna, which use the area throughout the year and need to be preserved.en
dc.description.affiliationUniversidade Estadual Paulista “Júlio de Mesquita Filho” Instituto de Biociências PPG Biodiversidade Aquática - Campus Liotral Paulista, Praça Infante Dom Henrique s/nº - Parque Bitaru - 11.330-900 - São Vicente
dc.description.affiliationInstituto de Pesca (APTA) Governo do Estado de São Paulo, Av. Prof. Besnar s/n. Morro do São João
dc.description.affiliationUnespUniversidade Estadual Paulista “Júlio de Mesquita Filho” Instituto de Biociências PPG Biodiversidade Aquática - Campus Liotral Paulista, Praça Infante Dom Henrique s/nº - Parque Bitaru - 11.330-900 - São Vicente
dc.identifierhttp://dx.doi.org/10.1590/2675-2824070.21067lyr
dc.identifier.citationOcean and Coastal Research, v. 70.
dc.identifier.doi10.1590/2675-2824070.21067lyr
dc.identifier.issn2675-2824
dc.identifier.scopus2-s2.0-85126728163
dc.identifier.urihttp://hdl.handle.net/11449/230610
dc.language.isoeng
dc.relation.ispartofOcean and Coastal Research
dc.sourceScopus
dc.subjectAbundance
dc.subjectAssemblage
dc.subjectAvifauna
dc.subjectEstuary
dc.subjectPopulation
dc.titleSeasonal variation of estuarine birds from Trapandé Bay, Cananéia, Brazilen
dc.typeArtigo

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