Sounds of North American Frogs: The Biological Significance of Voice in Frogs

FW-ASCH-7RR-0747

CDR copy FW-ASCH-7RR-0747 consists of frog calls which were used in conjunction with a presentation entitled "Amphibean Calls and Their Significance," presented by Charles M. Bogert at an August 1954 Florida meeting of the American Society of Ichthyologists and Herpetologists. The calls are grouped into four units: (1.) Warning calls, mating calls and screams of fright; (2.) Calls illustrating north/south trends, generally showing that higher-pitched and faster calls are in the South; (3.) Calls showing correlation between pitch and size of frog. (Larger frogs have lower-pitched calls.); and (4.) Sample calls of individual species of one genus in one region, illustrating the great diversity. Three pages of notes pertaining to the calls have been placed in the new tape box. FW-ASCH-7RR-0748 and -0749 are dubs of FW-ASCH-7RR-0747. Dr. Bogert also "conceived, narrated and documented" an important Folkways Record: Sounds of North American Frogs (now SFW45060), four years after this tape was made and which includes some songs from this tape, but many additional songs also. See other sheets for track list and durations.