Emmons, LH. Neoptrocial Rainforest Mammals: A Field Guide. The University of Chicago Press. Chicago, 1990.
Walking in the forest on trails and opportunistically. And once a sloth was found (or reported to the author), the following habitat features were collected at a presence site:
Day,Month,Year,Presence/Absence, Circumference,Diameter, Estimate Height m, Distance to Hiking Trail m, Distance to edge m, Type of Edge, Moss coverage, Canopy coverage, Height of sloth, Species of sloth, Latitude, Longitude, Altitude, Nearest Big Tree, Estimate Age, Genus of Tree, Arrow liana present, Bromeliad present, Fungi present, Fern, Shrub, Plant, Small trees Grass, Location name, Observer name, Comments For random locations, the same data were collected at absence plots.