Fig. 1

Number of sperm cells (log-transformed) quantified from female spermathecae in the pre-mating hydric-stressed male experiment (a), and the pre-mating stressed-female reciprocal experiment (b). Males or females were stressed prior to overnight mating by preventing access to water for stress durations 4 h and 8 h or no stress (control). Means and 95% confidence intervals (error bars) are presented and significant differences (post-hoc Tukeyʼs tests) are indicated by different letters