Amphibian Surveys at Klondike Gold Rush NHP 2018 Summary

Laabes AS and Belt J. 2023. Amphibian Surveys at Klondike Gold Rush NHP 2018 Summary. National Park Service. Skagway, Alaska

Amphibian monitoring has been conducted annually at Klondike Gold Rush National Historical Park since 2004 with the primary goal of monitoring long-term changes in amphibian distribution, abundance, reproduction, and survival at core breeding sites. The Park has two confirmed amphibian species, the Boreal Toad (Anaxyrus boreas, formerly Bufo boreas) and the Columbia Spotted Frog (Rana luteiventris); however, toads are the primary focus of monitoring efforts due to their relative abundance in the Taiya River watershed. In 2018, the monitoring season spanned about two and a half months from May 8th until July 16th. A total of 16 routine Visual Encounter Surveys were conducted at five intensive core breeding sites in Dyea and West Creek, and one extensive site on the Chilkoot Trail. Breeding activity was observed at five of the eight core sites. A total of 11 adult Boreal Toads captured, measured and released. Survey effort this year focused only on core breeding areas, a modified approach as compared to previous years. Analysis of this data may not be suitable for occupancy analysis, but can inform inquiries related to breeding activity in 2018.

Type
Published Report
Authors
Laabes, Andres; Belt, Jami
Date of Issue
2023-11
Publisher
National Park Service
Keywords
amphibian, Anaxyrus boreas, Boreal Toad, Columbia Spotted Frog, Rana luteiventris
Subjects
Ecological Framework: Biological Integrity | Focal Species or Communities | Amphibians and Reptiles

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