8 дек. 2017 г. · Roads, dikes and levees can have damaging impacts on wetlands if they alter natural fresh water or tidal flow patterns or hinder movement of ...

Some of the threatened species found in wetlands include, the Blanding's Turtle, the Ringed Boghaunter Dragonfly, the Sedge Wren, the Black Tern and the ...

Draining wetlands for agricultural purposes is significant, but declining, while development pressure is emerging as the largest cause of wetland loss.

Human activity, pests and weeds and climate change are some of the main threats to wetlands.

Pollution is another important problem that wetlands are exposed to. On a glob- al scale, 80% of wastewater is discharged into wetlands without any treatment. ...

Because warmer waters are more productive, wetlands may end up overrun by algae, which degrades water quality and poses health problems to humans and animals.

Common direct impacts to wetlands include filling, grading, removal of vegetation, building construction and changes in water levels and drainage patterns. Most ...

The biggest threat to wetlands comes from humans. We have lost vital wetland connectivity through dams, dykes, drains, ditches, and deforestation.

Threats · Alteration of natural hydrological regimes. Alteration of natural hydrological regimes · Catchment degradation. Catchment degradation · Pollution