When Emily Tornga first spotted the red-headed woodpecker (Melanerpes erythrocephalus), she didn't realize it was dealing ...

My research interests concern the behavioral and chemical ecology of social caterpillars. Much of my work has involved tent caterpillars but more recently I have been studying social species occurring ...

was controlled by Cactoblastis cactorum, a moth (Wilson & Schwarzlaender 2004). Predator, parasite, and parasitoid insects provide top-down management of herbivore populations (Naylor & Ehrlich 1997).

It lives in closed-canopy forests in Northern California and southern Oregon. Cactus ferruginous pygmy owl (Glaucidium brasilianum cactorum) is a small, fierce, day-hunting raptor found in the Sonoran ...