Capture rates did not differ among the three study areas or four seasonal periods for any of the species. All daytime nests of Black Rats found were above ground, generally in cavities within tree canopies. View of montane wet forest within the Hakalau Forest National Wildlife Refuge on the island of Hawaii. Black and Polynesian rats exhibited overlapping home ranges 1.6 to 4.4 ha in size. All rats became active immediately after dark and remained active until just before dawn.
Rats leave tracks on treated paper when they walk through the tunnels baited with coconut chunks.
Hawaii b. Testing small mammal toxicants and application methods in Hawaiian mesic and wet forests.