INFLUENCE OF RAINFALL, ENVIROMENTAL TEMPERATURE AND ECOLOGICAL CHANGES ON MAMMAL ACTIVITY AT TWO HABITATS (SECONDARY FOREST AND PINUS PLANTATION), HANTHANA MOUNTAIN, PERADENIYA, SRI LANKA

摘要

Fundamental to studies involving the determination of the abundance of animals by census techniques is the assumption that their detectability remains constant through the time. However, environmental parameters may affect the behavior, and therefore the detectability of animals, and this changes between sample periods as the parameters vary (Goldingay, et al., 1998 ; Golly et ah, 1975).