Uso do espaço por Rhipidomys mastacalis (Rodentia: Cricetidae) na Estação Ecológia do Panga, Uberlândia, Brasil

• Autor(a) principal: Machado, Pamella Melo Silva Ferreira
• Data de Publicação: 2019
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UFU
• Texto Completo: https://repositorio.ufu.br/handle/123456789/28236
• topic: Distância média movida; Área de vida; Tamanho corporal; CNPQ::CIENCIAS BIOLOGICAS

Space use patterns reflect strategies to maximize reproductive success and survival of individuals, and have implications for species population dynamics. Factors such as body size and physiological and behavioral differences between the sexes are the main determinants of small mammalian space use patterns. This study aimed to describe the use of the Rhipidomys mastacalis rodent space. To this end, the following hypotheses were tested: 1) males have a home range and longer moving distance than females, 2) living home range varies seasonally, 3) there is a positive relationship between space use measures (living area and average distance moved) and body mass of individuals. Monthly catches at Panga Ecological Station from August 2012 to August 2019 allowed to assess the home range (VA) of 17 individuals (eight males and nine females), using the Minimum Convex Polygon (95%) method for individuals with five or more catches, and the Moving Average Distance (DMM over Euclidean distance) of 25 individuals. The results showed a positive correlation between DMM and AV estimated by MPC, showing that this metric is a good indicator of space use, especially in species with low catch rate. There was no effect of climatic season or R. mastacalis body mass on the space use metrics evaluated. At the same time, we observed that males have greater mean distance moved than females, as well as greater body mass. This result suggests that the difference in space use between genders may be related to behaviors associated with maximizing reproductive success.