The study noted the annual mortality (33-68%) was highest in ponds with the greatest RES density. Winter mortality was 30%-32% and considered significant regardless of density. Summer or growing season mortality ranged from 3% in pond 1 to 36% in pond 4 and mortality was highest for the greatest RES density. To me this suggests lack of food might have contributed to the higher RES growing season mortality (pond4). Lack of food due to competition and less fat going into winter may also contribute to winter mortality.
Last edited by Bill Cody; 11/22/14 12:08 PM.
