Using space to event modeling to estimate density of multiple species in northeastern Washington

Concurrent monitoring of multiple species with a single study design can be an efficient use time and financial resources. Using camera traps to estimate density or abundance is only possible if the captures photographs all target in unbiased manner. We used trap data originally collected for different purpose applied Space Event (STE) model simultaneously. had sufficient densities moose (Alces alces), black bear (Ursus americanus), mountain lions (Puma concolor), wolves (Canis lupus), deer (white-tailed [Odocoileus virginianus] mule [O. hemionus] combined). Our estimated were lower than those derived from other methods area, possibly due lack sampling specific STE. However, our estimates generally comparable published across species' range. approach allowed us each same effort required species. results suggest that appropriate design, STE could effective, efficient, low cost non-invasive method estimating unmarked using array.