Aleuts, sea otters, and alternate stable-state communities
Simenstad CA, Estes JA, Kenyon KW. 1978. Aleuts, sea otters, and alternate stable-state communities. Science. 200(4340):403-411
Reexamination of stratified faunal components of a prehistoric Aleut midden excavated on Amchitka Island, Alaska, indicates that Aleut prey items changed dramatically during 2500 years of aboriginal occupation. Recent egolocial studies in the Aleutian Islands have shown the concurrent existence of two alternate stable nearshore communities, one dominated by macroalgae, the other by epibenthic herbivores, which are respectively maintained by the presence or absence of dense sea otter populations. Thus, rather than cultural shifts in food preference, the changes in Aleut prey were probably the result of local overexploitation of sea otters by aboriginal Aleuts.
- Type
- Journal Article
- Authors
- Simenstad, C; Estes, J; Kenyon, K
- Units
- GLBA , SEAN
- Keywords
- Community Ecology, Community Structure, Invertebrate, Kelp, Marine Mammal, Otter