https://ri.ufs.br/jspui/handle/riufs/2415 2026-08-01T14:50:33Z https://ri.ufs.br/jspui/handle/riufs/25675 Título: Novas compreensões sobre a diversidade de borboletas (Lepidoptera: Papilionoidea) da Caatinga Autor(es): Viana, Guilherme Magalhães 2026-01-28T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/25637 Título: Determinantes de padrões espaciais, ambientais e evolutivos das lacunas hutchinsonianas de serpentes (Squamata: serpentes) Autor(es): Lima, Luiz Antônio Gonzaga de Abstract: Knowledge of the different dimensions of biodiversity is marked by gaps and biases that unevenly affect data availability, being strongly influenced by geographic, historical, and phylogenetic factors. Among these gaps, the Hutchinsonian shortfall—related to the lack of knowledge about tolerance limits to abiotic factors—stands out as particularly relevant in the context of rapid climate change, since the absence of information on thermal tolerance compromises our understanding of species vulnerability, persistence, and future distributions. In this study, we investigated the magnitude of the Hutchinsonian shortfall associated with thermal biology traits of snakes, assessing the distribution and biases of available knowledge across geographic, phylogenetic, and climatic spaces. To this end, we integrated thermal biology data from the literature with spatial, phylogenetic, and environmental analyses. We compiled morphological, physiological, and climatic information from global databases and a systematic review, including data on thermal tolerance, evapotranspiration, and climatic niche under current conditions and future scenarios. Knowledge representativeness was evaluated using niche overlap tests, spatial autocorrelation analyses, and the phylogenetic aggregation index (NRI), in addition to analyses of changes in climatic conditions projected until 2100 under the SSP585 scenario. Our results demonstrate that knowledge of snake thermal biology is limited, strongly biased, and structured across phylogenetic, environmental, and geographic spaces, characterizing a multifaceted Hutchinsonian shortfall. Data are concentrated in a few clades and temperate regions, incompletely representing the group’s climatic niche, particularly for traits associated with minimum thermal tolerance and water balance. This pattern results in extensive portions of climatic space—especially in tropical regions—being systematically underrepresented. Projections of future climate scenarios indicate climatic rearrangements and the emergence of non-analog conditions, increasing uncertainty and limiting ecological inferences and realistic predictions about snake responses to global climate change. 2026-02-11T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/25558 Título: Análise de fatores causais e previsão temporal de acidentes por Bothrops no Brasil Autor(es): Silva, Franciely Fernanda Barbosa da Abstract: nakebite envenomation represents a significant public health challenge, especially in tropical and subtropical developing countries where healthcare systems are precarious, antivenoms are scarce, and warmer climates favor the abundance of snakes. This medical emergency primarily affects impoverished individuals living in rural communities, due to their high exposure to risk areas. Brazil is among the countries with the highest annual occurrence of snakebite cases. In the country, snake species of the Bothrops genus are responsible for most recorded accidents. In Chapter 1 of this dissertation, were employed spatial analyses to identify the determinants of Bothrops snakebite incidence in different regions of Brazil. Across the country, significantly higher snakebite incidence rates were observed in areas with higher percentages of native forest and historical forest loss. Additionally, we found that areas with higher temperatures and precipitation levels in the South, as well as higher climatic suitability for the B. jararaca species in the Southeast, exhibited significantly higher snakebite incidence rates. On the other hand, areas with higher percentages of pasture exhibited significantly lower snakebite incidence rates. In Chapter 2, we employed the Prophet time series model to develop snakebite incidence prediction models for each Brazilian region, considering the influence of covariates on predictive models. The Prophet model proved to be an effective tool in predicting snakebite incidence. We found that the Prophet model integrated with the covariate of maximum temperature in the South, forest fires in the North and Midwest, and a model without covariate integration in the Northeast and Southeast regions, demonstrated the best performance, indicating its potential application in epidemiological surveillance of this public health issue. Understanding the determinants and predicting snakebite incidence can help policymakers, public health authorities, and healthcare professionals develop and implement prevention and mitigation measures, thereby reducing the number of cases and associated adverse impacts. 2024-05-06T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/25505 Título: Aspectos da ecologia básica do Guigó-da-caatinga (Callicebus Barbarabrownae Hershkovitz, 1990) em fragmentos de Caatinga, Nordeste do Brasil Autor(es): Barreto, Hamilton Ferreira Abstract: The blond titi monkey (C. barbarabrownae), classified as Critically Endangered (CR) by the International Union for Conservation of Nature (IUCN), is the only primate endemic to the Caatinga biome. Despite its high threat status and endemism, there are still significant knowledge gaps regarding the species. With this in mind, this study was developed to expand knowledge about its biology and ecology. The first chapter addresses acoustic ecology, with the main objective of describing the species’ vocalization patterns and their daily, seasonal, and annual variations, in association with resource availability. Over two years (10 days per month), we collected acoustic data using autonomous recorders in two forest fragments of different sizes. We recorded 242 independent vocalization events in 193 samples, 28 in the smaller fragment (7 ha) and 214 in the larger fragment (70 ha). Of these, 81% were recorded in the morning period, with the highest frequency at 08:00. The month with the lowest number of records was October 2021 and the highest was June 2022. Vocalization frequency showed significant differences between morning and afternoon periods, times of day, months of the year, fragments, and seasons. No significant relationship was found between vocalization frequency and the availability of ripe fruits, suggesting that ripe fruits may influence vocalization frequency. The second chapter investigates the structure and composition of trees in fragments where the species occurs, with the main objective of characterizing the habitat in five fragments and examining its relationship with species density in these locations. Data were collected at five sites in the municipalities of Euclides da Cunha, Jacobina, Jeremoabo, and Lamarão (Bahia State), and Monte Alegre de Sergipe (Sergipe State). We sampled 200 trees in five transects per fragment (point-centered quarter method), selecting individuals with diameter at breast height (DBH) > 10 cm. For each tree, we identified the species and measured DBH, tree height (TH), distance to the previous tree (DPT), and crown cover (CC). Fabaceae was the most abundant family in all areas, except in Jacobina, where Myrtaceae predominated. The areas differed in diversity (H’), ranging from 2.27 to 3.35. Significant differences among areas were also found for TH, DPT, and CC, but not for DBH. This study represents the first approach to identifying habitat factors and their relationship with ecological aspects of C. barbarabrownae, highlighting its response to fruit availability as well as its occurrence in structurally heterogeneous yet compositionally more homogeneous areas. 2025-08-26T00:00:00Z