(Frontiers) It was once believed that roads posed no problem to birds because of their ability to fly. A new study finds that they can find these man-made structures problematic, especially small, forest-dwelling species. Their hesitance to cross roads could restrict their positive effects on the natural environment, such as seed dispersal, pollination and insect control.
from EurekAlert! - Social and Behavioral Science http://ift.tt/2uyXmJ2
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