The Eggs and Larvae of the Yosemite Toad Bufo canorus Camp
Karlstrom EL and Livezey RL. 1955. The Eggs and Larvae of the Yosemite Toad Bufo canorus Camp. Herpetologica. 11(3):221-227
The few published references on the natural history of the Yosemite toad include little information on the larva and no description of the eggs or the manner in which they are deposited. While engaged in research during 1954 on the ecology of Bufo canorus, Karlstrom collected eggs at two localities. The northernmost site is 200 yards northeast of the Tioga Pass Ranger Station, 9900 feet, Mono County, California, visited June 19, 1954 (MVZ 61790), and the second locality is near the presently known southern limit of the range of the species, Kaiser Peak Meadows, 8000 feet, 21/2 miles northwest of Kaiser Pass Summit, Fresno County, California, visited May 26, 1954 (MVZ 61788). Livezey in 1952 obtained tadpoles and metamorphosed toads at two localities-east base of Mount Conness, 10,000 feet, Mono County, California, July 30, 1952 (MVZ 61795), and 11/2 miles south of Ebbett's Pass, 7800 feet, Alpine County, California, August 11, 1952 (MVZ 61796). The Ebbett's Pass locality represents a northward range extension of the species (Livezey 1955). For comparative purposes larvae of Bufo boreas halophilus B. & G., have been collected at Yosemite Valley, 4000 feet, Yosemite National Park, Mariposa County, California, May 24, 1954 (MVZ 61805) and 61/2 miles east of Avery, 4175 feet, Stanislaus County, California, June 7, 1954 (MVZ 61838).
- Type
- Journal Article
- Authors
- Karlstrom, Ernest; Livezey, Robert
- Units
- YOSE
- Keywords
- Animal Studies, Eggs, Larvae, Yosemite Toad (Bufo canorus)