Padrões de movimentação de Pachyramphus viridis, Cnemotriccus fuscatus E Euscarthmus meloryphus (Aves: passeriformes) na caatinga: uma análise baseada em ciência cidadã

Abstract

Migration is a common phenomenon in nature, characterized by the seasonal movement of individuals between a breeding area and a resting area, and vice versa. This phenomenon is observed in various species and has a wide taxonomic distribution. However, knowledge about the migratory routes and distribution of some species within Brazilian territory is still limited, and many simple questions about various species remain unanswered, considering that this type of research requires significant effort and high costs, which in some cases, discourage progress in these research areas. To overcome this obstacle, citizen science emerges as a practical and efficient alternative for providing data for the analysis of movement patterns of New World birds. Thus, the present work aimed to analyze and characterize the occurrence patterns of possibly migratory species in the Caatinga using data available on citizen science platforms. The results showed an association with the highest number of species occurrences and the rainy season in the region, indicating marked seasonality possibly due to the availability of resources influenced by rainfall indices. The month with the highest number of species records was January, with peaks in the presence of these taxa extending until February/March coinciding with the rainy season. These findings highlight the importance of such research in filling gaps in the biology of these species, promoting more effective conservation and management of migratory species in Caatinga.