Monitoring shorebird and waterfowl use at Krusenstern Lagoon, Cape Krusenstern National Monument, Alaska: 1991-1993 summary
Schroeder MT. 1993. Monitoring shorebird and waterfowl use at Krusenstern Lagoon, Cape Krusenstern National Monument, Alaska: 1991-1993 summary. In Schroeder MT. Natural Resource Technical Report NRTR-95/25
(Adapted from author's abstract). Nesting birds, primarily shorebirds and waterfowl, were studied in Cape Krusenstern National Monument, during the summers of 1991 - 1993. Nest searches were used to quantify nest densitry in a variety of arctic habitats. Waterfowl productivity was assessed by brood surveys in 1992 - 1993. Skiff-based trend counts were used to assess seasonal patterns in the relative abundance and distribution of birds in 1991 and 1992. A daily observation log was maintained each summer to document species presence. Peak shorebird nesting occurred a minimum of three weeks later in 1992 than in 1991 and 1993. Delayed breeding may have been due to a late snowmelt. Overall nesting densities were lower in 1992 than 1991 or 1993. Shorebird nesting densities were greatest in dwarf ericaceous shrub tundra than other habitats each year. Several species appeared to nest in alternative habitats or forego breeding when preferred habitats were snow-covered or flooded due to late snowmelt. Waterfowl broods were not evenly distributed amoung lakes and pond habitats. Recommendations regarding long-term monitoring methodology are included.
- Type
- Book Chapter
- Authors
- Schroeder, Mark
- Date of Issue
- 1993
- Units
- CAKR
- Keywords
- Anatiidae, Animal Studies, Birds, Birds (Aves), Cape Krusenstern National Monument, Carardiidae, Ecology, Habitat Use, Monitoring, Nesting, Passerine, Scolopacidae, Shorebirds, waterfoel, Wildlife surveys