Camera traps
are remotely activated cameras that are triggered by either motion sensors, an
infrared sensor, or uses a light beam. It is a method used for capturing wild
animals on film without the researchers having to be present (and therefore
altering behaviours).
Although originally this type of trapping was used in
hunting to detect the presence and location of large numbers of game animals,
today it is primarily used in research applications including studies of nest
ecology, detection of rare species, estimation of population size and species
richness, as well as research on habitat use and occupation of human-built
structures (such as owl nests etc).
The main
benefit of camera traps (also known as trail cameras) is that they can be used
to capture images of animals in the wild with as little human interference as
possible. In recent decades, with advancements in the quality of camera
equipment, this method of field observation has become more and more popular
among researchers. Further, this once very expensive form of research has now
become relatively affordable.
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