In environmental science, the H.J. Andrews Forest is a place of beginnings. It’s here that researchers monitor the heartbeat of aging trees, leading to new understanding for the term “old growth.” It’s where studies of an obscure owl shape forest policy, trickling streams become windows on abrupt and sudden events and scientists prod, poke and measure trees like doctors in the emergency room.
In ecosystems around the world, the decline of large predators such as lions, wolves and cougars is changing the face of landscapes from the tropics to the Arctic. An analysis of 31 carnivore species shows how threats such as habitat loss, persecution by humans and reductions in prey combine to create global hotspots of carnivore decline.