Cormorants are highly effective piscivorous birds whose expanding populations in freshwater and coastal habitats have prompted extensive research into their effects on fish stocks. Predation pressure ...

Defaunation—the decline or loss of animal species from ecological communities—has emerged as a pressing challenge in tropical forests worldwide. Driven principally by hunting, habitat fragmentation ...

Seals and sea lions are important top predators within a complex ecosystem. Removing them will have unknown and unintended ...

When wolves were reintroduced to Yellowstone National Park in 1995, the effects were dramatic. Among other things, elk numbers fell far more than expected. It turns out that the mere fear of wolves ...