ScienceDaily Posted April 18, 2012 Share Posted April 18, 2012 Analysis of 50 years' bird droppings inside a large decommissioned chimney on a university campus, provided evidence that DDT and bird diet may have played a role, in a long-term decline for populations of insect-eating birds in North America. View the full article Link to comment Share on other sites More sharing options...
PhysOrg Posted April 18, 2012 Share Posted April 18, 2012 New research findings highlight how deposits of animal droppings are scientifically important for determining the impact of environmental change on threatened species. View the full article Link to comment Share on other sites More sharing options...
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