Checking billy barr’s snow log…
The effect of altitude on the distribution of insects has not been widely studied, and except for isolated observations, no work has been done on the vertical distribution of the ground beetles (Carabidae). It is the purpose of this thesis to show the distribution of the Carabidae throughout the altitudinal zones of Boulder County, Colorado. The Carabidae is a large and important family of Coleoptera and is world-wide in its distribution. The species are predatory and many are definitely beneficial since they attack other insects which are plant pests. Because of this carnivorous habit, the carabids are dependent only indirectly upon vegetation for their existence.
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