The effect of sublethal predation on the biology of echinoderms

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Published 1997 in Oceanographic Literature Review

ABSTRACT

In contrast to plants, predation on animais is usually lethal. Analysis of the effect of predation on animal populations and on predator-prey dynamics typically assumes this is the case. However, sublethal predation occurs in echinoderms, primarily on the arms of crinoids, asteroids, and ophiuroids. Sublethal predation is important in the se echinoderms as it meets one of Harris' ( 1989) major criteria, affecting basic biological processes such as acquisition of food and allocation of nutrients to growth and reproduction. Sublethal predation would have an effect on their ecological role. It is essential to consider sublethal predation in the analysis of the life-histories of these species.

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