Female life-history traits of a species pair of threespine stickleback in Mud Lake, Alaska

摘要

Aim: Compare several female life-history traits in a stickleback species pair (i.e. size and age at reproduction, clutch size, egg mass, and reproductive effort) to determine whether time during the reproductive season (early or late) or breeding habitat (vegetation, open sites) significantly affect trait values. Organisms: Sympatric ecotypes of anadromous and resident freshwater threespine stickleback (Gasterosteus aculeatus). Time and place: Mud Lake, Cook Inlet region, Alaska, May-July 2003. Resul