Fig. 3From: Potential for adaptation to climate change: family-level variation in fitness-related traits and their responses to heat waves in a snail populationImmune activity of L. stagnalis snails. (a) Haemocyte concentration (cells/μl; estimated marginal means ± SE), (b) phenoloxidase (PO)-like activity (increase in optical density in miliunits; estimated marginal means ± SE), and (c) antibacterial activity (decrease in optical density in miliunits; estimated marginal means ± SE) in 15 families after maintained in two temperature treatments (15 °C, 25 °C) for seven days. Families are arranged according to their rank order (from lowest to highest) at 15 °C, and they are connected between the treatments using reaction normsBack to article page