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COMMUNITY STRUCTURE OF FORAMINIFERAL COMMUNITIES WITHIN TEMPORAL BIOZONES FROM THE WESTERN ARCTIC OCEAN

¹ Smithsonian Institution, Washington, D. C. 20560-0121
² U. S. G. S.

^* E-mail: hayekl{at}si.edu

Community structure is often an overlooked dimension of biodiversity. Knowledge of community structure, the statistical distribution of the relative species abundance vector, makes possible comparisons and contrasts across time, space and/or environmental conditions. Our results indicate that species of Arctic foraminifera in age-correlated cores from abyssal depths are each best described by log-series distributions. Using this structural information, we were able to determine that structural stability exists for at least 50 ka. The foraminiferal communities in this study show remarkable concordance, distributional similarity and support the neutral theory of biodiversity.

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