Fig. 3From: Variation in male spermiation response to exogenous hormones among divergent populations of Red-eyed TreefrogsMean (± SE) sperm viability of Agalychnis callidryas varied over time for both populations, Bijagual (white bars) and La Selva (dark gray bars) to 4 μg/g LHRH with the highest concentration occurring at 3 h PI and decreasing at 24 h PI (P < 0.05)Back to article page