A century of avifaunal change in Alaska
Kessel B and Gibson DD. 1994. A century of avifaunal change in Alaska. Studies in Avian Biology. 15:4-13
Avifaunal changes in Alaska have resulted from both natural and man-induced causes. The geographic ranges of eight North American species have expanded into Alaska, and the range of one (Barn Swallow) has contracted significantly--apparently all naturally. Most changes in distribution and numbers, however, have been man-induced, either through over-harvesting or through environmental alterations (Short-tailed Albatross, swans, geese, Peregrine Falcon, Bald Eagle). Through management efforts, declines in some species appear to have been stemmed, even reversed, but declines in others are only now being detected (two Beringian eiders and six Central Alaska passerines).
- Type
- Journal Article
- Authors
- Kessel, Brina; Gibson, Daniel
- Units
- ALAG , ANIA , ARCN , BELA , CAKN , CAKR , DENA , GAAR , GLBA , KATM , KEFJ , KLGO , KOVA , LACL , NOAT , SEAN , SITK , SWAN , WRST , YUCH
- Keywords
- albatrosses, avian population changes, avian range expansions, Cormorants, Passerines, Raptors, Waterfowl