Maternal effects in gypsy moth: only sex ratio varies with population density.

From: Ecology | Date: January 1, 1998| Author: Myers, Judith H.; Boettner, George; Elkinton, Joseph | Copyright information

A number of species of forest caterpillars fluctuate in density with a periodicity of 8-11 yr. One explanation for these "cycles" is that changes in food quality or quantity and crowding influence the growth rate and final size of moths at high density. Carryover of these influences to the next generation through maternal effects could modify the dynamics of the population. To determine whether development, survival, pupal size, fecundity, or sex ratio varied among offspring of gypsy moths fr...

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