Amphibian surveys at Klondike Gold Rush NHP: 2015 summary

Surdyk SL and Belt J. 2018. Amphibian surveys at Klondike Gold Rush NHP: 2015 summary. Natural Resource Report. NPS/KLGO/NRR—2018/1655. National Park Service. Fort Collins, Colorado

Amphibian monitoring has been conducted annually at Klondike Gold Rush National Historical Park since 2004 with the primary goal to monitor long-term changes in amphibian distribution, abundance, reproduction, and survival at core breeding sites. The Park has two confirmed amphibian species, the boreal toad (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 2015, the monitoring season spanned a four month period from May 1 to August 28. A total of 55 routine Visual Encounter Surveys were conducted at eight intensive core breeding sites in Dyea, three intensive non-core sites in Dyea and West Creek, and four extensive sites along the Chilkoot and Laughton Glacier Trails. Breeding activity was observed at three of the core sites. A total of 27 adult boreal toads (4 of which were in amplexus), 7 egg masses, ~ 60,000 tadpoles, 4 juveniles, and ~19,000 of metamorphs were observed. Two western toads were also fitted with radio-transmitters and tracked to identify upland habitat use, hibernation sites, and migration corridors.

Type
Published Report
Authors
Surdyk, Shelby; Belt, Jami
Date of Issue
2018-05
Publisher
National Park Service
Units
KLGO , NRSS
Subjects
Ecological Framework: Biological Integrity | Focal Species or Communities | Amphibians and Reptiles

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