Aleuts, Sea Otters, and Alternate Stable-State Communities

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 ecological studies in the Aleutian Islands have shown the concurrent existence of...

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Bibliographic Details
Published in:Science
Main Authors: Simenstad, Charles A., Estes, James A., Kenyon, Karl W.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1978
Subjects:
Amchitka
Amchitka Island
aleut
Alaska
Aleutian Islands
Online Access:http://dx.doi.org/10.1126/science.200.4340.403
https://www.science.org/doi/pdf/10.1126/science.200.4340.403
Description
Summary: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 ecological 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.

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