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ATIVIDADE ACÚSTICA E PADRÕES TEMPORAIS ASSOCIADOS A VARIÁVEIS CLIMÁTICAS EM RHINELLA DIPTYCHA E PHYSALAEMUS CUVIERI NO CERRADO GOIANO

2026-01-23T12:05:10Z

Título: ATIVIDADE ACÚSTICA E PADRÕES TEMPORAIS ASSOCIADOS A VARIÁVEIS CLIMÁTICAS EM RHINELLA DIPTYCHA E PHYSALAEMUS CUVIERI NO CERRADO GOIANO Autor(es): Cordeiro, Gustavo da Cruz Primeiro Orientador: Morais, Alessandro Ribeiro de Abstract: Acoustic communication is crucial for the reproduction and behavior of anuran amphibians. This study investigated the daily and seasonal vocal activity patterns of Rhinella diptycha and Physalaemus cuvieri in the Cerrado, as well as the influence of air temperature and relative humidity on their occurrence. Using passive acoustic monitoring between January 2021 and January 2022 in the Aporé-GO area, a Cerrado-Atlantic Forest transition zone, nocturnal recordings were analyzed using circular statistics and logistic regression models. The results revealed distinct patterns: P. cuvieri exhibited vocal activity concentrated in the summer (January-February), with a consistent peak around 22:00 h. In contrast, R. diptycha showed greater plasticity, with peak activity between August and October and a progressive shift in peak time (from 20:44 to 22:39 h). The probability of vocalization for P. cuvieri increased significantly with temperature (β = 0.043; p < 0.001) and humidity (β = 0.053; p < 0.001), a pattern consistent with a dependence on humid conditions. Conversely, R. diptycha showed a response to temperature three times stronger (β = 0.125; p < 0.001) but a negative relationship with humidity (β = -0.050; p < 0.001), reflecting its morphological adaptations for tolerance to drier environments. It is concluded that the species possess distinct phenological and physiological strategies, with P. cuvieri being more dependent on humid conditions and R. diptycha more tolerant to drought. These differences imply distinct vulnerabilities to climate change, with P. cuvieri being potentially more threatened by alterations in precipitation regimes. Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso

LEVANTAMENTO FLORÍSTICO E SUA IMPORTÂNCIA PARA A MANUTENÇÃO DA BIODIVERSIDADE NO JARDIM BOTÂNICO DE RIO VERDE, GOIÁS

2025-12-09T21:05:21Z

Título: LEVANTAMENTO FLORÍSTICO E SUA IMPORTÂNCIA PARA A MANUTENÇÃO DA BIODIVERSIDADE NO JARDIM BOTÂNICO DE RIO VERDE, GOIÁS Autor(es): Gomes, Ana Carolina Primeiro Orientador: Menino, Gisele Cristina de Oliveira Primeiro Membro da Banca: Mendonça, Maria Andréia Corrêa Segundo Membro da Banca: Souza, Lucas Anjos de Abstract: This study aimed to conduct a floristic survey of the tree stratum of the ecological trail at the Botanical Garden of the Instituto Federal Goiano - Campus Rio Verde, in order to identify and characterize the plant species present, contributing to the knowledge of the regional flora and to conservation and management actions for the native vegetation of the Cerrado. Collections were carried out along two continuous transects, 5 meters wide, covering both sides of the trail, and all shrubby-arboreal individuals with a circumference at breast height (CBH) ≥ 8 cm were recorded. Seventy-two species distributed in 53 genera and 27 families were identified, with Fabaceae being the most representative. The results showed low floristic diversity, a consequence of the high dominance of Senegalia polyphylla (37.43%) and Anadenanthera colubrina (11.81%), which together concentrated most of the sampled individuals. The diameter distribution showed a pattern tending towards an inverted J shape, characteristic of communities in equilibrium, with a predominance of young individuals and continuous recruitment. The floristic composition was mostly formed by native species, with a low occurrence of exotic and naturalized species, in addition to the record of endangered species, such as Paubrasilia echinata. Thus, it was concluded that the tree stratum of the Botanical Garden presents a consolidated and functional structure, although with restricted species diversity. The survey contributes to the knowledge of the local vegetation, offering subsidies for the planning of management, conservation and environmental education actions, reinforcing the role of the Botanical Garden as a strategic space for the preservation of Cerrado biodiversity. Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso

ANÁLISE DE DANOS NO DNA DA AVIFAUNA POR MEIO DA ELETROFORESE EM GEL DE CÉLULA ÚNICA

2025-12-08T16:53:54Z

Título: ANÁLISE DE DANOS NO DNA DA AVIFAUNA POR MEIO DA ELETROFORESE EM GEL DE CÉLULA ÚNICA Autor(es): Pereira, Larissa Edriene Machado Primeiro Orientador: Santos, Lia Raquel de Souza Abstract: The Comet Assay is a sensitive, rapid, and easy-to-apply technique that requires a small biological sample. This assay has been used as a biomarker to assess DNA damage caused by environmental stressors in both humans and wild animals, such as birds. As one of the most diverse groups of vertebrates, birds provide a range of ecosystem services, are present almost everywhere on the planet, and contribute to trophic interactions, making them excellent bioindicators. Therefore, this study aimed to investigate global scientific studies that used the Comet Assay for avifauna biomonitoring. Fifty articles were found between 2001 and 2025, distributed across 17 countries. Most of the studies were conducted in laboratories, with domestic birds being the most frequently analyzed bird species. The effects of heavy metals and chemicals on birds were the most frequently investigated environmental stressors in the research. The comet assay design varied between studies, with blood being the primary sample analyzed. The comet assay is still rarely used in avifauna, particularly in free-ranging birds. Furthermore, there is a lack of standardization regarding the assay's application at different stages, such as lysis and electrophoresis times. Further studies using single-cell gel electrophoresis in avifauna are recommended, as it is a simple and non-invasive technique that can be applied alongside other biomarkers. Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso

TOLERÂNCIA À SECA E ALTAS TEMPERATURAS EM ESPÉCIES ARBÓREAS NATIVAS DO CERRADO EM UM CENÁRIO DE MUDANÇAS CLIMÁTICAS

2025-06-30T20:42:56Z

Título: TOLERÂNCIA À SECA E ALTAS TEMPERATURAS EM ESPÉCIES ARBÓREAS NATIVAS DO CERRADO EM UM CENÁRIO DE MUDANÇAS CLIMÁTICAS Autor(es): Mendes, Jeviny Lopes Primeiro Orientador: Farnese, Fernanda dos Santos Primeiro Membro da Banca: Sousa, Letícia Ferreira Segundo Membro da Banca: Silva, Paulo Eduardo de Menezes Abstract: The Cerrado, Brazil's second largest biome, is a critical biodiversity hotspot but also the most threatened savanna in the world due to the expansion of agribusiness and climate change. Rising temperatures and decreasing humidity, particularly over the last 60 years, have affected the physiology of plant species, threatening their adaptive capacity and, consequently, biodiversity conservation. Cerrado plants, adapted to a climate with well-defined dry and wet seasons, possess various physiological mechanisms to cope with water scarcity. However, global climate change is progressing much faster than species can adapt, potentially pushing them to a critical survival threshold. This study aims to analyze the plasticity associated with thermotolerance determinants in deciduous and evergreen species throughout the seasons, seeking to understand how these plants will respond to rising global temperatures. The results indicate that while some species exhibit stability in their physiological processes, others show greater leaf plasticity, adjusting to variations in temperature and water availability. Temperatures above 40 °C have already been shown to harm leaves, highlighting that the photosynthetic apparatus is particularly sensitive to warming. This underscores the importance of further investigating these responses to predict climate change impacts and develop appropriate conservation strategies for the Cerrado flora. Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso