268 TELFORD: MULTIMAMMATE RAT POPULATION BIOLOGY IN TANZANIA


 60 77
 0.8
0.&6 54 s 71 43101

0.4- 138 73

0.2


 DEC FEB APR JUN AUG OCT DEC
 1983 1984


VISIBLE N
NOT VIS.E3


Figure 12. Mean testis weight of P. natalensis correlated with visibility of epididymal tubules
from December 1983 to December 1984.


1981-82 -----

1982-83 --

1983-84 .

1984-85 ---


..T'"


SEP-OCT JAN-FEB


MAY-JUN


Figure 13. Trap success by bimonthly periods, corrected, for P. natalensis in the study areas,
September 1981-February 1985.