Birds avoid crossing roads to prevent predationLeave a Comment
Why didn’t the bird cross the road? Because it was afraid of predators and venturing into another bird’s territory
Posted: 19 Jul 2017 07:05 AM PDT see full ScienceDaily article here
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 human-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….
…The authors of the study strongly advise that measures are put in place to connect fragments of forest across roads, allowing wildlife to move freely…”There are wildlife-friendly solutions to many of these issues, such as specially-designed overpasses, fauna underpasses and fencing so animals can avoid accessing the road, all of which need to be incorporated into the design of our road systems. Further studies should look at the impacts of man-made breaks in vegetation, such as forest tracks and park walkways on bird movements,” adds Professor Jones. “We are currently using our data to identify the ‘at risk’ bird species within suburban areas, to assist with conservation management.”
Christopher D. Johnson, Daryl Evans, Darryl Jones. Birds and Roads: Reduced Transit for Smaller Species over Roads within an Urban Environment. Frontiers in Ecology and Evolution, 2017; 5 DOI: 10.3389/fevo.2017.00036