TREES - Amazon freshwater ecosystems found vulnerable to degradation

A study published in Conservation Letters this week found that freshwater ecosystems in the Amazon are highly vulnerable to environmental degradation. River, lake and wetland ecosystems—encompassing approximately one-fifth of the Amazon basin area—are being increasingly degraded by deforestation, pollution, construction of dams and waterways, and over-harvesting of plant and animal species.
http://phys.org/news/2013-02-amazon-freshwater-ecosystems-vulnerable-degradation.html