Evolutionary theory has long held that natural selection largely operates at the level of individuals. Findings from Northern Arizona University researchers, recently published in the Annual Review of Ecology, Evolution, and Systematics, suggest that selection can also occur at multiple levels to shape whole communities. This multi-level selection arises from the interactions of key species that cascade to alter communities and ecosystems.
For example, unraveling the evolution of complex forest communities that… Read more
As Arctic summers warm, Earth’s northern landscapes are changing. Using satellite images to track global tundra ecosystems over decades, a team of researchers finds the region has become greener as warmer air and soil temperatures lead to increased plant growth.
Two researchers at the 
Often maligned and largely misunderstood throughout history, bats have more recently been recognized for the important role they play in ecosystems all over the world, pollinating flowers, dispersing seeds and controlling pests by eating insects.