Ecological Relationships of Rattlesnakes in Southeastern Arizona with Notes on Other Species

ers at the Research Station. Points along the Portal Road are most conveniently expressed as distance by road northwest of the ArizonaNew Mexico state boundary. Locations of captures were recorded to 0.1 mile whenever possible, but because data from other sources were used records were lumped in 0.5-mile classes in the data analysis. Activity temperatures were recorded to 0.1? C with Wesco quick-reading thermometers. In 1960 snakes were marked by painting an identifying number on the basal rattle segment with quick-drying waterproof paint (Testor's Butyrate Dope). THE STUDY AREA