Evolution in an Urbanizing World
Given the right conditions, life in the city might just lead to speciation. Wouter Halfwerk digs into the potential for and evidence of urban speciation in his latest paper in Frontiers in Ecology and Evolution. Halfwerk points out that many studies have revealed both genetic and phenotypic divergence in urban populations, but asks are we seeing... Continue Reading →
Urban areas are hot. The urban heat island effect causes urbanized regions to be significantly warmer than nearby forested areas, and the tropical islands of the Caribbean are no exception to this pattern. Just spend a few minutes in the noon heat in San Juan, Puerto Rico, and you will beg for the cool reprieve... Continue Reading →
Eastern Gray Squirrels, Sciurus carolinensis, are some of the most visible and well-known urban animals in the Northeastern United States. Prior to European settlement of the region, the black morph of S. carolinensis ("melanistic") was much more abundant. Scientists have hypothesized that the dark pelt was advantageous in the old growth forests that used to cover the region.... Continue Reading →
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