Distribuição do padrão reprodutivo em comunidades de anuros na Mata Atlântica

• Autor(a) principal: Oliveira, Helena Thereza Carvalho de
• Data de Publicação: 2021
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/214578
• topic: Ecologia; Hotspots; Anfíbio; Análise multivariada; Biodiversidade

The Atlantic Forest is one of the main Brazilian forest formations and due to the anthropic actions have been impacted mainly by changes in use and land cover and climate change. These impacts have been increasingly larger and considering its high biodiversity, makes this region a focus of conservation measures and studies that can improve the management of your biodiversity in the present and in the future. This biome is considered a hotspot of biodiversity of diverse taxonomic groups, with the majority species is endemic and has great biological and ecological importance. You anurans have a high degree of endemism (~77%) in this formation, with species residents in specific and restricted locations. In addition, this biome holds a large number of species (>600), with high diversity of characteristics. functional, resulting in a wide distribution of these species, with large adaptation to different habitats and climatic conditions. Considering this great diversity of this group and the imminent and future threats, this work sought to understand the relationship of climatic conditions and two functional attributes [reproductive patterns of species - explosive (various individuals reproducing in a short period) or prolonged (individuals reproduce over a long period or in several events) and the CRC - snout-vent length], present in anuran communities in the Atlantic Forest Biome. To perform this correspondence we use in a complementary way multivariate analyses, RLQ and Four corners. Given the high relationship of reproductive patterns with precipitation regimes, mainly the explosive pattern, we expected the climatic conditions explain the distribution of reproductive patterns to the along the anuran communities in the Atlantic Forest. With the results of analyses, even with axis 1 of the RLQ explaining 84.84% of the variation found and simulated model 2 being significant (p < 0.001), model 4 did not was significant (p = 0.321), which indicated that there is no correlation between the patterns. breeding of anurans and their distribution. In the analysis of Quatro Cantos, no there was a significant relationship between reproductive patterns and conditions environmental factors, but it was possible to visualize a positive correlation of the length snout-vent (CRC) and the environmental descriptor that refers to temperature. This The result indicates that regions with higher temperatures harbor individuals larger, in addition to also being related to the explosive pattern of reproduction. In general, these studies need further larger, in order to explore the results found in more detail.