Fuente: Harvard Sustainability & Environment Channel
Expuesto el: martes, 25 de septiembre de 2012 14:01
Autor: Alvin Powell
Asunto: An invasion of New England
| While new species naturally expand to other places and sometimes disrupt the scene when they arrive, the pace of introduction of invasive species has picked up enormously over the past century and a half, stressing and transforming New England forests. |
