PPT Slide
Frogs and other amphibians, such as the one pictured here, are often adversely impacted by an increase in impervious cover and can also act as indicators of stream quality.
Copyright 2000, Center for Watershed Protection
Notes:
In addition, wetlands and the plants and animals found within them can be adversely impacted by upstream impervious cover. Research has found that frog and salamander density is reduced in urban streams and the plant community is directly influenced by upstream impervious cover. The imbalance in water elevations caused by introduction of stormwater tends to simplify the structure and species of urban wetlands.