Why should anyone care, Heatley asked, whether forest creatures get replaced by invasive plants and animals that can better tolerate human activity?

WSJ: Northeast drilling boom threatens forest wildlife

Dany Heatley equalised but Chris Drury and Jamie Langenbrunner put the US two clear and Ryan Kesler sealed victory after a Sidney Crosby consolation.

BBC: United States ice hockey team stuns hosts Canada

After the interval, 29-year-old Heatley added a second for Canada but with four minutes left of the period, Drury, of the New York Rangers, gave his side the lead again.

BBC: United States ice hockey team stuns hosts Canada

Heatley, the ecologist, said that "not one" of the energy companies drilling in the area has a long-term restoration plan for sensitive deep-forest environments, and that permits usually require only minimal restoration, such as planting grasses.

WSJ: Northeast drilling boom threatens forest wildlife

"If you wanted to create a perfect storm for biological invasion, you would do what the energy companies are doing in north-central Pennsylvania, " said Kevin Heatley, an ecologist with the national firm Biohabitats who works to restore areas that have been damaged by human activity.

NPR: Northeast Drilling Boom Threatens Forest Wildlife