Skip to Main Content
Taxonomic variation in oviposition by tailed frogs (Aschaphus spp.).Author(s): Nancy E. Karraker; David S. Pilliod; Michael J. Adams; Evelyn L. Bull; Paul Stephen Corn; Lowell V. Diller; Linda A. Dupuis; Marc P. Hayes; Blake R. Hossack; Garth R. Hodgson; Erin J. Hyde; Kirk Lohman; Bradford R. Norman; Lisa M. Ollivier; Christopher A. Pearl; Charles R. Peterson
Source: Northwestern Naturalist. 87: 87-97
Publication Series: Miscellaneous Publication
PDF: View PDF (120 KB)
DescriptionTailed frogs (Ascaphus spp.) oviposit in cryptic locations in streams of the Pacific Northwest and Rocky Mountains. This aspect of their life history has restricted our understanding of their reproductive ecology. The recent split of A. montanus in the Rocky Mountains from A. truei was based on molecular differentiation, and comparisons of their ecology are limited. Our objectives were to provide a range-wide summary of information on Ascaphus oviposition, compare some aspects of the reproductive ecology of the 2 species, and examine geographic variation in their reproductive traits. Reproductive ecology of the 2 species differed. Ascaphus truei had smaller clutches, oviposited later in the summer, and had a longer duration of oviposition than A. montanus. A greater number of communal oviposition sites were attributed to A. montanus. These ecological differences support the recent taxonomic revision of Ascaphus and suggest that different management strategies may be necessary for each species where conservation is a priority.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationKarraker, Nancy E.; Pilliod, David S.; Adams, Michael J.; Bull, Evelyn L.; Corn, Paul Stephen; Diller, Lowell V.; Dupuis, Linda A.; Hayes, Marc P.; Hossack, Blake R.; Hodgson, Garth R.; Hyde, Erin J.; Lohman, Kirk; Norman, Bradford R.; Ollivier, Lisa M.; Pearl, Christopher A.; Peterson, Charles R. 2006. Taxonomic variation in oviposition by tailed frogs (Aschaphus spp.). Northwestern Naturalist. 87: 87-97
Keywordscoastal tailed frog, Ascaphus truei, Rocky Mountain tailed frog, A. montanus, reproduction, clutch size, oviposition, communal oviposition, geographic variation
- Divergent patterns of abundance and age-class structure of headwater stream tadpoles in burned and unburned watersheds
- Tailed frogs: distribution, ecology, and association with timber harvest in northeastern Oregon.
- Genetic structure among coastal tailed frog populations of Mount St. Helens is moderated by post-disturbance management
XML: View XML