Vol . 13, No. 3 
Page 3 
6. Rabbit Management G. B. Rose 
In livetrapping of cottontail rabbits on the 4-H Area at Robert AHerton 
Park, a total of 1,272 animals were captured during the years I 956 -I 965 . Of 
these 1,272 animals, 85 were recaptured the second year, 14 were recaptured the 
third (but not necessarily the second) year, 2 the fourth year, and 3 the fifth 
year. The annual mortality rate of adult cottontails, calculated from a 
regression based on the logarithms of numbers of animals recaptured in successive 
years after the first year or year of capture is 67 percent. This is considerably 
less than the 85 percent mortality of juvenile cottontails from one fall to the 
next. Turnover time for the rabbit population at Allerton is about five years. 
