| |
| Title: |
Optimal Sampling Design for Monitoring Population
Trends of Alaska Landbirds |
| Abstract: |
The objective of this research project is to determine the
optimal sampling design and test methodology for a cooperative, regional
program to monitor population trends of landbirds breeding in boreal regions
of North America. Results will be used to establish an interagency, cooperative
Boreal Landbird Monitoring Program, which will be implemented across public
lands. This research endeavor has entailed a two-part effort. An intensive,
controlled study was conducted to determine the relative effects of time
of day, season, year, location, and observer on the variability of detections
of birds during point counts in the boreal region. An extensive study was
also conducted to examine interannual variability in detections across broad
geographic scales. To date, about 200 miniroutes in roadless areas have
been surveyed for one to six years, encompassing all biogeographic regions
of Alaska. This effort has included voluntary contributions from more than
30 different partners. |
| Keywords: |
Monitoring, population trends, status, surveys, seasonal
chronology, methodology, power analysis, Alaska |
| Status: |
Field work complete. Preliminary data analysis complete and
power analysis in progress. Summary tables and maps of distribution available
on this web site. Initial recommendations developed for Boreal Landbird
Monitoring Program. |
| Duration: |
1992-until manuscript complete. |
| Location: |
Alaska |
| Region: |
Alaska |
| Cooperators: |
See list of contributors to Alaska Off-road Breeding Bird
Survey. |
| Contacts: |
- Colleen M. Handel
- USGS-Alaska Science Center
- 1011 E. Tudor Road, Anchorage, AK 99503
- 907-786-3418
- colleen_handel@usgs.gov
|
