Influence of temporal variation and seasonality on population dynamics of three sympatric rodents

摘要: Population dynamics of small mammals can be strongly influenced by seasonality. Long-term studies are important in detecting population size variation mammals, and understanding the causes that variation. We performed a six-year study to investigate fluctuations parameters (reproduction, recruitment, survival rates, abundance, capture probability) three rodent species at core Brazilian cerrado domain. Small were captured monthly within two grids during six years Aguas Emendadas Ecological Station Federal District, Brazil. Model selection for explaining rates probability was using MARK (Robust Design model). All showed highest proportion reproductive females wet seasons. Calomys tener T. lasiotis seasonal is higher dry than seasons, while most abundant N. lasiurus had no patterns. Annual abundance also these species. Thalpomys declined over study. These estimates season. Our results reinforce idea not only climatic (rainfall drought) events linked numbers, capturability, but life histories play an role their responses variations rainfall-productivity events.