@MISC{_1researchupdate, author = {}, title = {1Research Update Research News}, year = {} }
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Abstract
rapidly can two populations diverge when exposed to different selection pressures? And what mechanisms contribute to rapid population divergence? A remarkable new study by Badyaev et al. of house finches Carpodacus mexicanus suggests that simultaneous maternal adjustment of offspring sex ratio and growth rates has played an important role in rapid population differentiation associated with an explosive range expansion. Introductions of alien species can have disastrous consequences for native fauna, but might also provide important evidence relating to pattern and process in evolution