Assessing arrays of multiple trail cameras to detect North American mammals.

摘要: Motion triggered camera traps are an increasingly popular tool for wildlife research and can be used to survey multiple species simultaneously. As with all techniques, it is crucial conduct trapping following study designs that include adequate spatial temporal replication, sufficient probability of detecting presence. The use configuration within a single site understudied considerations could have substantial impact on detection probability. Our objective was test the role number (one, two or three units), spacing along linear transect (100 m 150 m), given present. From January March, 2017 we collected data six mammal in Maine, USA: coyote (Canis latrans), fisher (Pekania pennanti), American marten (Martes americana), short-tailed weasel (Mustela erminea), snowshoe hare (Lepus americanus), red squirrel (Tamiasciurus hudsonicus). We multi-scale occupancy modelling compare pooled histories different five cameras deployed at same (n = 32), how would influence available site. Across species, found increases as increased from one (22 400 percent increase), regardless between cameras. For most magnitude increase less when adding third (4 85 showing pronounced effect. station features also varied by species. suggest using cost effective approach success over camera.