ABC Islands (Alaska)
| ABC islands | ||
|---|---|---|
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| Waters | Pacific Ocean | |
| archipelago | Alexander Archipelago | |
| Geographical location | 56 ° 59 ′ N , 134 ° 58 ′ W | |
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| Number of islands | 3 | |
| Main island | Baranof Island | |
| Total land area | 13,334 km² | |
| Residents | 10,524 (2000) | |
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The ABC Islands are a collective term for the islands of Admiralty Island , Baranof Island and Chichagof Island in the northwest of the Alexander Archipelago , which in turn is located in southeast Alaska . There is little industry and little human settlement on these islands.
Most of the islands are nature reserves, Admiralty Island is almost completely designated as a National Monument . There is a significant population of brown bears on the islands . Analyzes showed that the brown bear population of the ABC islands has a high genetic proportion of polar bears . Since all polar bears are descended from brown bears, but the genetic relationships in this case indicate a transfer in the opposite direction, an unusual genetic drift seems to have occurred in this region in recent periods.
Individual evidence
- ↑ »www.laender-center.de«
- ↑ James A. Cahill, Richard E. Green et al .: Genomic Evidence for Island Population Conversion Resolves Conflicting Theories of Polar Bear Evolution. In: PLOS Genetics, 9 (3): e1003345. doi : 10.1371 / journal.pgen.1003345