2011/08/11 by Pâmela Castro Antunes, Marilena Altenfelder Arruda Campos, Luiz Gustavo Rodrigues Oliveira‐Santos +1 · 1 citation
Agricultural and Biological Sciences · Earth and Planetary Sciences · Environmental Science · #Abundance (ecology) #Animal Ecology and Behavior Studies #Biology #Cricetidae #Demography #Ecology #Evolution and Paleontology Studies #Population #Population density #Rabbits: Nutrition, Reproduction, Health #Reproduction #Sex ratio
paper · pdf · doi:10.5007/2175-7925.2009v22n2p143
openalex publication_date 2011/08/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
The population dynamics and reproductive issues of two species of rodents of the family Cricetidae, Rice Rats (Euryoryzomys russatus) and Pygmy Rice Rats (Oligoryzomys nigripes), were studied for 24 months in an Atlantic Forest area in southern Brazil. Euryoryzomys russatus presented density-dependent population fluctuation, and recruitment was positively associated with temperature. Oligoryzomys nigripes displayed the lowest abundance, greatest population fluctuation and shortest permanence time. Abundance and survival were found to be negatively correlated with temperature. The sex ratio was not biased in any of the species.