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Journal Watch

Hidden Effects of Climate Change


Photo by ©Paul Kemp

Seal mating patterns shift with climate

By Robin Meadows
April-June 2007 (Vol. 8, No. 2)

S. Twiss et al. 2007. The impact of climatic variation on the opportunity for sexual selection. Biology Letters 3:12-15.


Beyond shifting species' ranges, climate change may also cause hidden alterations at the genetic level by disrupting animal mating patterns. New research reveals that climate variation can undermine the breeding hierarchy in grey seal colonies. When rainfall is scant, dominant males mate less and subordinate males mate more.

"A broader range of individuals will contribute



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