Do “Piggyback Rides” Play an Important Role in Invasive Species Dispersal?
by Neil Coughlan and Andy Stevens Late one night, Andy Stevens, then a Center for Limnology graduate student, pulled a minnow trap out of the water off of the Hasler Lab pier in Lake Mendota. In the glare of his flashlight, Stevens could see the already familiar clusters of zebra mussels colonizing the wire mesh …