THE POTENTIAL FOR COEVOLUTION IN A HOST-PARASITOID SYSTEM. II. GENETIC VARIATION WITHIN A POPULATION OF WASPS IN THE ABILITY TO PARASITIZE AN APHID HOST
THE POTENTIAL FOR COEVOLUTION IN A HOST-PARASITOID SYSTEM. II. GENETIC VARIATION WITHIN A POPULATION OF WASPS IN THE ABILITY TO PARASITIZE AN APHID HOST(English)