Round Island Field Report
Round Island is one of four terrestrial haulouts for walrus (Odobenus rosmarus) located in Bristol Bay, Alaska. It is the only one ofthe four located in the Walrus Islands State Game Sanctuary and has traditionally supported the largest number ofwalrus. The other haulouts are Cape Newenham and Cape...
| Main Authors: | , , |
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| Format: | Text |
| Language: | English |
| Published: |
1999
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.383.6071 http://www.arlis.org/docs/vol1/RoundIsland/714160020-1999.pdf |
| Summary: | Round Island is one of four terrestrial haulouts for walrus (Odobenus rosmarus) located in Bristol Bay, Alaska. It is the only one ofthe four located in the Walrus Islands State Game Sanctuary and has traditionally supported the largest number ofwalrus. The other haulouts are Cape Newenham and Cape Pierce, both located within Togiak National Wildlife Refuge, and Cape Seniavin on the Alaskan Peninsula. Walrus at the Round Island haul out were counted daily from May 17 through August 10, 1999. Counts for all East side beaches combined ranged from 0 to a high of4186 on June 8. Counts on the West side ranged from 0 to a high of 764 on June 25. Seabird plots were monitored for both population size and productivity _ Common murres (Uria aa/ge) and black-legged kittiwakes (Risso tridactyla) experienced wide-spread nesting failure, while pelagic cormorants (Phalacrocorax pe/agicus) fledged an average ofone chick per nest. Ravens (Corvus corax) and foxes (Vufpes vulpes) commonly preyed upon adult murres and kittiwakes. and on chicks and eggs ofall three monitored seabird species. An average of45 Steller sea lions (Eumetopias jubatas) used the East Cape haul out throughout the The summer of 1999 marked the seventh consecutive year ofa cooperative program between the |
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