| |
| Title: |
American Dipper foraging on Pacific salmon
eggs |
| Abstract: |
We quantified the feeding rates of American Dippers (Cinclus
mexicanus) foraging for salmon eggs and invertebrates along salmon rivers
in southeastern Alaska. Dippers foraging in salmon-spawning stream reaches
ate 1.8 eggs/minute versus 0.6 invertebrates/minute in non-spawning reaches.
The success of dippers foraging for eggs, combined with high nutritional
value of salmon eggs and their availability, may have consequences for dipper
reproduction and populations. |
| Keywords: |
American Dipper, Cinclus mexicanus, food, salmon
eggs, Juneau, Berners Bay, Chilkat River |
| Status: |
Complete; see Canadian Field-Naturalist 113: 288-290 for
full summary. |
| Duration: |
1997-1998 |
| Location: |
Juneau, Berners Bay, Chilkat River |
| Region: |
Southeastern Alaska |
| Cooperators: |
U.S. Forest Service, Forest Sciences Laboratory; K. E. Obermeyer,
A. Hodgson |
| Contacts: |
- Mary Willson
- U.S. Forest Service, Forest Sciences Laboratory
- 2770 Sherwood Lane, Juneau, AK 99801 USA
- 907-586-8811
- willsonm@ptialaska.net
|
