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Abstract
The black brant is a sea goose that depends on coastal habitats from high arctic nesting sites in Canada, Alaska, and Russia to wintering areas in the Pacific coastal states, the Baja California peninsula, and mainland Mexico estuaries. Population estimates are based on aerial surveys in Mexico, California, Oregon, and Washington during mid-winter. Despite much annual variability in estimates, a plot of the counts from 1964 to 1992 reveals a significant downward trend in the winter populations (Fig. 1). Three of four major colonies on the Yukon-Kuskokwim (Y-K) delta declined an average of 60% during the first half of the 1980’s. This is significant because about 79% of the world population of the black brant nest in these colonies (Table). Because few other breeding colonies have been consistently monitored, we have little understanding of their dynamics.
| Publication type | Report |
|---|---|
| Publication Subtype | Federal Government Series |
| Title | Life history strategies and habitat needs of the black brant |
| Series title | Fish and Wildlife Leaflet |
| Series number | 3.1.15 |
| Year Published | 1993 |
| Language | English |
| Publisher | U.W. Fish and Wildlife Service |
| Publisher location | Washington, D.C. |
| Contributing office(s) | Alaska Science Center |
| Description | 6 p. |
| Google Analytic Metrics | Metrics page |