Common Cannibals, A New Study Examines The Role That Intraspecific Predation Plays In Determining The Dynamics Of A ...( among certain species ofcrabs fish an...)

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Common Cannibals, A New Study Examines The Role That Intraspecific Predation Plays In Determining The Dynamics Of A Population

among certain species of crabs, fish and copepods can result in skewed age distributions among their populations.

Other studies have also drawn conclusions about flour beetle cannibalism. But this most recent study is the first to empirically examine the cannibalistic interactions of the species throughout all the stages of its life cycle.

The flour beetle, in particular, presents an intriguing example for scientists because populations of this species tend to be demographically stable under natural conditions.

"The really interesting finding to us was that relatively simple mathematical equations could be used to predict, qualitatively, the dynamic effects of cannibalism for this flour beetle species," said Benoit. "These experiments provide a direct test of the role of cannibalism in a long-term study of population dynamics."

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Contact: Nadine Lymn
nadine@esa.org
202-416-6182
Ecological Society of America
10-Dec-1998

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