Monitoring Passerine Birds in Denali National Park and Preserve, Alaska: 2007 Progress Report
McIntyre C. 2007. Monitoring Passerine Birds in Denali National Park and Preserve, Alaska: 2007 Progress Report. National Park Service Central Alaska Inventory and Monitoring Network. Fairbanks, AK
We conducted 10-minute point transect surveys in Denali National Park and Preserve, Alaska, as part of the Central Alaska Network’s Vital Signs monitoring program. Surveys were conducted between 1 and 26 June between 0300 and 0900 hours. All birds detected (seen or heard) at each sampling point were recorded during a 10-minute sampling period in one of four time intervals (0 to 3 min, >3 5 8 150-m). The survey crew sampled 187 points on 8 minigrids in 2007, and detected 1,941 birds (1,982 detection events). The number of detections per grid ranged from 55 to 396 birds and detections per point ranged from 3.9 to 16.5 birds. Species richness ranged from 14 to 23 species per minigrid and 2.6 to 7.6 species per point. Fifty-eight species were detected on minigrids (47 species during the 10-minute counts and 11 species on the minigrids but not during the 10-minute counts). Members of two families, Emberizidae (Sparrows) and Parulidea (Warblers), compromised approximately 84% of all detections. White-crowned Sparrow was the most commonly detected species, occurring at approximately 81% of all points and comprising 28.2% of all detections. Approximately 87% of all the detections were of singing birds. Less than 9% of all detections were made within the 10 to 50 meter distance intervals and approximately 46% of detections were in the >150 meter interval. Sixty-seven percent of all detections were made in the 0-3 minute interval.
- Type
- Unpublished Report
- Authors
- McIntyre, Carol
- Date of Issue
- 2007
- Publisher
- National Park Service Central Alaska Inventory and Monitoring Network
- Units
- CAKN , DENA
- Keywords
- Denali, Monitoring, Passerine
- Subjects
- Ecological Framework: Biological Integrity | Focal Species or Communities | Birds