Impact: toward a framework for understanding the ecological effects of invaders.

The most prominent ecological effect would be that of their tunneling and mounds.

Scientists have since been in the area studying the long-term ecological effects of the fire.

The ecological effects of economic activity spur research upon changing market economy incentives.

A number of ecological effects derive from grazing, and these may be either positive or negative.

The full ecological effect of privet is still being studied.

Both teams found, with very high certainty, a clear ecological effect of rising temperatures.

Nor is there even a clear sense of what uses are sustainable since ecological effects take many decades to play out.

Footprint approaches only provide information as to how an individual can decrease negative ecological effects.

This approach is controversial, however, due to the possibility of ecological and toxicological side effects.