Although habitat fragmentation fosters extinctions, it also increases the probability of speciation by promoting and maintaining divergence among isolated populations. Here we test for the effects of ...

I studied allozymic variation in five species of Amazonian birds at two geographic scales. At a local scale (all sites within 200 km of one another), I included samples from six sites, three within ...

SALISBURY — Andrew Jacobson, assistant professor of geographic information systems and conservation at Catawba College, is the lead author of a National Geographic-funded research paper, “Global Areas ...

On the side of a mountain road in Pennsylvania's Tiadaghton State Forest, I'm trying to avoid a steady stream of heavy truck traffic. Acres of freshly cut tree stumps stretch out in front of me. Kevin ...

Natural gas might be the same commodity everywhere in the world, but prices can vary dramatically because of the complex network of infrastructure needed to transport it. The result is a partially ...

PICATINNY ARSENAL, N.J., Aug. 17, 2011 -- The shifting dynamics on the battlefield can inject variation and unpredictability at various levels. For instance, the impact of artillery bombardments can ...