Sentences with phrase «impacted seabird populations»
For example, the introduction of DDT, a long - lived pesticide, into the marine environment has severely impacted seabird populations at the islands.
https://www.nps.gov/ Not exact matches
The resulting data is used to compare relative abundance of seabirds over time — to help us understand populations within the sanctuary and their possible impacts on local ecosystems and as a barometer for other changes in the environment.