Sustainability 2014, 6 378 Although these migrations appear to be influenced by socio-cultural drivers, movements are often underpinned by the search for fertile land for farming and grazing cattle or as a result of rapid environmental degradation [29,30]. In light of the foregoing, we seek to...
Significant natural disturbances include ice storms in 1936 and 1950 and a severe wind event in 2003, as well as long-term moderate to severe grazing pressures from a large population of white-tailed deer. For a detailed history of the Allegheny hardwood forest, see Marquis [18]. For each ...