Breeding Status and Population Trends of Seabirds in Alaska in 1999
Dragoo DE, Byrd VG, Irons DB. 2000. Breeding Status and Population Trends of Seabirds in Alaska in 1999. AMNWR 2000/02. US Fish and Wildlife Service, Alaska Maritime National Wildlife Refuge. Homer, AK
[from executive summary] Data are being collected annually for selected species of marine birds at breeding colonies on the far-flung Alaska Maritime National Wildlife Refuge (NWR) and at other areas in Alaska to monitor the condition of the marine ecosystem and to evaluate the conservation status of species under the trust of the Fish and Wildlife Service. The strategy for colony monitoring includes estimating timing of nesting events, rates of reporductive success (e.g., chicks per nest), and population trends of representative species of various foraging guilds (e.g., off-shore diving fish-feeders, offshore surface-feeding fish-feeders, diving plankton-feeders) at geographically-dispersed breeding sites. This information enables managers to better understand ecosystem processes and respond appropriately to resource issues. It also provides a basis for researchers to test hypotheses about ecosystem change. The value of the marine bird monitoring program is enhanced by having sufficiently long time-series to describe patterns for these long-lived species....
- Type
- Published Report
- Authors
- Dragoo, Donald; Byrd, Vernon; Irons, David
- Date of Issue
- 2000
- Publisher
- US Fish and Wildlife Service, Alaska Maritime National Wildlife Refuge
- Units
- AKRO , AKSO , ANIA , GLBA , KATM , KEFJ , LACL , SITK , WRST
- Keywords
- aethia, Alaska, Aleutian Islands, ancient murrelet, auklet, Birds, Black-legged Kittiwake, Breeding, cerorhinca, Chukchi Sea, coastal wildlife, Common Murre, Cormorant, crested auklet, Cyclorrhynchus, double-crested cormorant, fork-tailed storm-petrel, Fratercula, Fulmarus, glaucous-winged gull, Gulf Of Alaska, hatching chronology, horned puffin, kittiwake, Larus, Monitoring, murre, Population Trends, Productivity, puffin, Seabirds