“…Thus, researchers have increasingly used indirect methods to document wildlife activity, such as motion-sensor camera traps (see O'Connell et al, 2010 for a review). Researchers suggest that camera traps provide a more accurate empirical documentation and quantification of wildlife behavior and activity patterns than historical trapping and observational methods (Dillon and Kelly, 2007;Meek et al, 2012). For example, camera traps provided a rare insight into specific partitioning of activity timing in small mammals that was previously unknown (Meek et al, 2012), of extended activity in amphibians (Hoffman et al, 2010), and of the first known evidence of nocturnal activity in a presumptive diurnal primate (Tan et al, 2013).…”