Peregrine Falcon Monitoring in Yukon - Charley Rivers National Preserve, Alaska
Flamme M, Ambrose R, Florian C, McIntyre C. Peregrine Falcon Monitoring in Yukon - Charley Rivers National Preserve, Alaska. 2006. National Park Service
This project monitors Peregrine Falcons in the Central Alaska Network of National Parks. The number of occupied territories within the study area, which is located within Yukon-Charley Rivers National Preserve, has shown a steady increase since the species neared extinction in the early 1970s because of nest failure caused by DDT contamination. In 2007, 50 occupied territories were observed, which is nearly a 5-fold increase since 1975. Reproductive success has improved during the past 3 decades. The number of nestlings, though variable among years, has increased from 17 in 1975 to 82 in 2007. Recent evidence suggests that American Peregrine Falcons are still threatened by environmental contaminants, though. Analyses of Peregrine eggs from the upper Yukon River suggest that mercury levels are increasing. Mercury is a persistent compound which bioaccumulates at high trophic levels and causes toxic effects (similar to DDT). The amount of mercury being found in Yukon area eggs is currently at levels that may affect reproduction. High levels of mercury are made biologically available through industrial processes such as mining and waste incineration, and will likely increase with global industrialization. Additionally, DDT and other pesticides are still being used on Peregrine wintering grounds, which may cause continued risk to the population.
- Type
- Project
- Authors
- Flamme, Melanie; Ambrose, Robert; Florian, Chris; McIntyre, Carol
- Publisher
- National Park Service
- Units
- CAKN , YUCH
- Keywords
- Alaska, Contaminants, Egg, Falco Peregrinus, Mercury, Monitoring, National Park, Peregrine Falcon, Population, Reproductive Success, territories, Yukon-Charley Rivers
- Subjects
- Ecological Framework: Biological Integrity | Focal Species or Communities | Birds
Program
Products
- Upper Yukon peregrine falcon dataset
- American peregrine falcon monitoring protocol for the Central Alaska Network: Protocol narrative, version 2.0
- Monitoring American peregrine falcons in Central Alaska Inventory and Monitoring Network: Data quality standards
- Protocol for Monitoring American Peregrine Falcons, Standard Operating Procedure (SOP) 1: Before the Field Season
- Standard Operating Procedure (SOP) 1: Before the Field Season
- Standard Operating Procedure (SOP) 2: Training Observers; Protocol for Monitoring American Peregrine Falcons, Central Alaska Network (CAKN) Inventory and Monitoring Network
- Standard operating procedure (SOP) 3: Using Global Positioning System (GPS) Units
- Standard operating procedure (SOP) 4: Documenting Territory and Nest-Site Location, Protocol for Monitoring American Peregrine Falcons, Central Alaska Inventory and Monitoring Network
- Standard operating procedure (SOP) 5: Conducting the Peregrine Falcon Survey, Protocol for Monitoring American Peregrine Falcons, Central Alaska Inventory and Monitoring Network
- Standard operating procedure (SOP) 7: Data Managenent, Protocol for Monitoring American Peregrine Falcons, Central Alaska Inventory and Monitoring Network
- Standard operating procedure (SOP) 9: After the Field Season, Protocol for Monitoring American Peregrine Falcons, Central Alaska Inventory and Monitoring Network
- Standard operating procedure (SOP) 10: Revising the Protocol, Protocol for Monitoring American Peregrine Falcons, Central Alaska Inventory and Monitoring Network
- American peregrine falcon monitoring along the Upper Yukon River, Alaska, 2011
- The American Peregrine Falcons of Yukon-Charley Rivers National Preserve, Alaska
- 2008 American Peregrine Falcon (Falcon peregrinus anatum) Monitoring along the Upper Yukon River in Yukon-Charley Rivers National Preserve, Central Alaska Network
- American peregrine falcon (Falco peregrinus anatum) monitoring along the Upper Yukon River in Yukon-Charley Rivers National Preserve, Central Alaska Network: 2008 report
- American Peregrine Falcon (Falco peregrinus anatum) Monitoring along the Upper Yukon River in Yukon-Charley Rivers National Preserve, Central Alaska Network.
- PEREGRINE NUMBERS HAVE GROWN, BUT ENVIRONMENTAL THREATS REMAIN: PEREGRINE MONITORING IN THE CENTRAL ALASKA NETWORK: YUKON-CHARLEY RIVERS
- American Peregrine Falcon Monitoring Along the Upper Yukon River, Yukon-Charley Rivers, Alaska, 2005
- American Peregrine Falcon Monitoring Protocol for Yukon-Charley Rivers National Preserve (Version 1.0)
- American peregrine falcons along the upper Yukon River, Alaska, 1998
- Survey for American Peregrine Falcons in east-central Alaska
- American Peregrine Falcons Along the Upper Yukon River, Alaska, 1997
- Charley River Peregrine Falcon (Falco peregrinus) Survey, 1996
- Charley River peregrine falcon occupancy survey, 1996
- American peregrine falcons along the upper Yukon River, Alaska
- Surveys for peregrine falcons along the Charley River, Yukon-Charley National Preserve, 1980-1995
- Charley River peregrine falcon occupancy survey, 1995
- Charley River Peregrine Falcon (Falco peregrinus) Survey, 1995
- Fortymile River trip report : south-facing bluff plant community inventory peregrine falcon breeding observations
- Charley River peregrine falcon occupancy survey, results of field survey, 1-7 June 1994
- Monitor peregrine falcons and their Neotropical prey
- Charley River Survey Summary
- Peregrine falcon survey Charley River, June 27-July 2 1992
- Supplemental peregrine falcon, Falco peregrinus, surveys near Yukon-Charley Rivers National Preserve
- Peregrine falcon banding on the Charley River, July 1990
- Peregrine Falcon Research in the Yukon-Charley Rivers National Preserve, Alaska
- Peregrine falcon banding on the Charley River and observations on the Kandik River, 1989
- Peregrine falcon surveys in interior and northern Alaska, 1989
- Peregrine falcon banding Charley River, July 7-12 1988
- Peregrine falcon surveys in interior and northern Alaska, 1988
- Upper Yukon River : 1988 survey results on endangered species (peregrine falcons)
- Peregrine falcon banding Charley and Yukon rivers, 1987
- Peregrine falcon surveys in interior and northern Alaska, 1987 and comparison with recovery plan criteria
- Peregrine falcon surveys in interior and northern Alaska, 1986, and comparison with recovery plan criteria
- Peregrine falcon banding on the Charley River
- Kandik River peregrine survey and banding, July 12-17, 1985
- Peregrine falcon banding surveys in and adjacent to Yukon-Charley Rivers National Preserve, 1985
- Peregrine falcon and bald eagle studies along the upper Tanana and upper Yukon Rivers, Alaska, 1984
- American Peregrine Falcon (Falco peregrinus anatum) Studies on the Upper Yukon River
- 1982 peregrine falcon survey : field notes
- The status of peregrine falcons along the upper Yukon River, Alaska, and blood sampling of peregrine falcons in interior Alaska for toxicological analysis, 1981
- The occurrence of peregrine falcons (Falco peregrinus anatum) and other raptors on the Charley River
- Results of the 1980 peregrine falcon surveys on the upper Yukon, Charley and Colville rivers, Alaska
- Combined reports of the Yukon river peregrine falcon surveillance program, 1979
- A Final report of the peregrine falcon surveillance program between Circle, Alaska and the Alaska-Yukon border, 1978
- Report on peregrine falcon surveillance program on the upper Yukon, 1977
- Floating the Charley River to conduct Peregrine Falcon surveys: Helpful hints and general descriptions of known Peregrine Falcon nest sites
- American Peregrine Falcon Monitoring along the Upper Yukon River, Alaska, 2006
- Estimating Occupancy and Nest Survival of Cliff-Nesting Raptors in an Open Population Framework