The Post Lab has a new NSF grant to study secondary contact between landlocked and anadromous alewife. The research will take advantage of river restoration efforts to study the ecological and evolutionary consequences of secondary contact from the initiation of contact. A fishway at Rogers Lake, CT, will allow anadromous alewife to pass into Rogers Lake, initiating contact between the anadromous and landlocked populations of alewife that have been isolated for centuries. Post and his collaborators, Gisella Caccone and Eric Palkovacs, will track both the ecological changes in lakes that result from anadromous alewife restoration and the evolutionary changes in alewife and other species, such as Daphnia, that strongly interact with alewife.