The marine iguana of the Galápagos Islands, its behavior and ecology

Volume: 34Start Page: 329End Page: 37

Comparative Ecology Of The Common Garter Snake (thamnophis S. Sirtalis), The Ribbon Snake (thamnophis S. Sauritus), And Butler's Garter Snake (thamnophis Butleri), In Mixed Population.

PhDZoologyUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/183103/2/0002578.pd