1. The number of eggs, their size, mass and development time, and the starvation time of newly hatched young, was examined in four populations of Gammarus lacustris along an elevation gradient from ...
Journal of Coastal Research, Vol. 5, No. 1 (Winter, 1989), pp. 103-112 (10 pages) A field study was conducted to examine phenotypic plasticity in reproduction and seed mass (weight per seed) ...
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