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 ...

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 ...

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 ...

Crack formation is typically undesirable as it represents mechanical failure that compromises strength and integrity. Recently, there have also been numerous attempts to control crack formation in ...

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 ...