-12- 



Oldham, R.S. 1967 (see XI. Behavior c. Migration and Orientation). 



Penn, G.H. 1950. Utilization of crawfishes by cold-blooded vertebrates in the 

 eastern United States. Amer. Midi. Natur. 44:643-658. 



Raney, E.G. and R.M. Roecker. 1947. Food and growth of two species of water- 

 snakes from western New York. Copeia 1947 (3) : 171-174. 



Steinwascher , Kurt. 1980. Host-parasite interaction as a potential population 

 regulatory mechanism. Ecology 60:884-890. 



Thorson, T.B. 1955. The relationship of water economy to terrestrialism in 

 amphibians. Ecology 36:100-116. 



Turner, F.B. 1962. The demography of frogs and toads. Quart. Rev. Biol. 37:303-314. 



Walters, B. 197 5. Studies of interspecific predation within an amphibian community. 

 J. Herpetology 9:267-279. 



Werner, J.K. and M.B. McCune. 1979. Seasonal changes in anuran populations in a 

 northern Michigan pond. J. Herpetology 13:101-104. 



Wood, J.T. 1945. Variation in length of newly-born garter snakes. Copeia 1945(2) :11£ 



XI. Behavior 



a. General 



Boice, R. 1970. Avoidance learning in active and passive frogs and toads. J. Comp. j 

 Physiol. Psychol. 70 (1, Part 1):154-156. ' 



Davis, D.D. 1933. Unusual behavior in a leopard frog. Gopeia 1933 (3) : 223-224. 



Greding, J. , Jr. 1971. Comparative rates of learning in frogs (Ranidae) and toads 

 (Bufonidae) . Caribbean J. Sci. 11 (3,4) :203-208. 



Hoppe, D.M. 1979 (see VI. Color). 



Jenssen, T.A. 1968. Some morphological and behavioral characteristics of an enter- 

 grade population of the green frog R. clamitans in southern Illinois. Trans. 

 111. State Acad. Sci. 61 (3):252-259. 



Jenssen, T.A. and W.B. Preston. 1968. Behavioral responses of the male green frog, 

 Rana clamitans , to its recorded call. Herpetologica 24:181-182. 



Marqhisin, A. and J.D. Anderson. 1978 (see X. Ecology). 



Schmidt, R.S. 1968. Chuckle calls of the leopard frog (Rana pipiens ) . Copeia 

 1968(4) : 561-569. 



Schroeder, E.E. 1968. Aggressive behavior in Rana clamitans . J. Herpetology 1:95-96. 



