More than four decades ago, field ecologists set out to quantify the diversity of trees on a forested plot on Barro Colorado Island in Panama, one of the most intensively studied tracts of tropical ...

This station is about a species that you probably won’t see from the Waldbauer trail, and yet you see its effects everywhere you look in the Adirondacks. The North American beaver (Castor canadensis) ...

For decades, ecologists have puzzled over a mystery: Why do some natural habitats get overrun by invasive species while others seem to repel outside threats? In a classic 1958 book on the subject, the ...