2009 Klondike Gold Rush National Historical Park amphibian monitoring report
Wetherbee H. 2014. 2009 Klondike Gold Rush National Historical Park amphibian monitoring report. Natural Resource Data Series. NPS/KLGO/NRDS—2014/626. National Park Service. Fort Collins, Colorado
Amphibian monitoring has been conducted in Klondike Gold Rush National Historical Park since 2004. The 2009 monitoring season spanned a four-month period between April 14 and August 19. Routine amphibian surveys were conducted at eight western toad (Bufo boreas) core breeding sites in Dyea, three non-core sites at Lost Lake and West Creek, and 13 extensive sites along the Chilkoot Trail corridor. Western toad breeding activity was observed at five of the core sites. Only two sites exhibited a fully successful breeding cycle, meaning eggs laid during the 2009 spring breeding season reached maturity and migrated to their upland winter sites. Biotechs observed 22 adult western toads in Dyea and 2 adult western toads along the Chilkoot trail, for a total of 24 adult toad observations. An estimated 10,000 to 15,000 tadpoles in the Nelson Slough area (monitoring sites DY13 and DY14) survived long enough to reach metamorph stage. Hundreds of metamorphs were observed at upland forest sites around the Dyea townsite in late August and early September. No other amphibian species were detected in the park in 2009.
- Type
- Published Report
- Authors
- Wetherbee, Heather
- Date of Issue
- 2014-02
- Publisher
- National Park Service
- Units
- KLGO , NRSS
- Keywords
- Amphibian, Chilkoot Trail, chytrid, Dyea, KLGO, Klondike Gold Rush National Historical Park, Monitoring, Nelson Slough, Western toad
- Subjects
- Ecological Framework: Biological Integrity | Infestations and Disease | Animal Diseases , Ecological Framework: Biological Integrity | Focal Species or Communities | Amphibians and Reptiles