miércoles, 6 de noviembre de 2013

Animals as victims of human impact in nature

In addition to altering global ecology, human activities and human population growth also affect evolutionary trajectories of many others species. Human impact on the global biosphere actually controls many of major facets of ecosystem structure. Is known for everyone to a large fraction of the world’s available fresh water, fertile land, CO2 balance and see conditions are dominated by human activities effects. Consequences are diverse, for one hand affect evolutionary trajectories accelerating evolutionary change, especially in commercially important species (resistance to drugs in bacterial strains, plants and insects resistance to pesticides, rapid changes in invasive species are examples of this) where biological engineering advances are, in great hand, responsible of this. On the other hand, deforestation, desertification, pollution on the air and water, introducing species in new environments, indiscriminate killing, among others, have generated massive extinction of many species in our ecosystem, broken biome balance. In Chile are many species extinct, but this number is low comparative with other Latin Americans countries. Species like Numenius borealis commonly called “Zarapito boreal”, Ctenomys magellaniscus dicki or “Tuco-tuco”, Rhinoderma rufum or “Rana Darwin”, Pseudalopex fulvipes or “Zorro Chilote” are few examples of extinct animals (if we considering others kingdoms, like vegetal o fungi, this number would increase significatively).

Solutions for this problem are so simple (theoretically) like poor convenient to dominant groups: limit, restrict and supervise efficiently the activities of big industries, major responsibles of pollution and enviroment destruction. But, this isn't rentable for the industry and commerce, so... the question is ¿are political measures aimed at protection of risk species and biodiversity or, rather, are aimed to protected large economic groups interests? I think response is known for all of us.

No hay comentarios:

Publicar un comentario