|
| |
|
|
|
|
||||
| Home Help Feedback Subscriptions Archive Search Table of Contents | ||||
|
Fig. 3. Effects of acclimation on pH tolerance of larval Aedes aegypti.
(A) Survival times in extreme pH are increased by prior acclimation. Bars
represent mean ± S.E.M. of survival time following transfer
from acclimation pH to test pH. Sample sizes: 4 to 3, 32; 7 to 3, 24; 11 to
12, 27; 7 to 12, 10. (B) Acclimation to extreme pH does not influence survival
at the other pH extreme. Bars represent the mean ± S.E.M. of
the proportion of larvae surviving to pupation following acclimation at pH 4
or 11, then either maintained in the acclimation pH or transferred to the test
pH. Samples sizes are four runs for all groups except 11 to 4, where only
three runs were performed. (C) Transfer of acclimated larvae from one pH
extreme to the other has little influence on the growth rate. Larvae were
acclimatized to pH 4 or 11 for 3 days, then transferred to the other pH
extreme. Males, filled bars; females, open bars. Sample sizes are (for males;
females): 4 to 4 (8;8); 4 to 11 (14;6); 11 to 11 (9;15); 11 to 4 (10;10).
Significance of comparison of transfers to same test pH are indicated for A
and B; significance of comparisons within males or females from the same
acclimation pH are shown for C. *P<0.05; NS,
P>0.05.
|
