Key points are not available for this paper at this time.
Leo S. Luckinbill, Robert Arking, Michael J. Clare, William C. Cirocco, Steven A. Buck, Selection for Delayed Senescence in Drosophila melanogaster, Evolution, Vol. 38, No. 5 (Sep., 1984), pp. 996-1003
Luckinbill et al. (1984) studied this question.