Allometric relations between seminal duct gland (SDG) and testes (T) weights vs soma weight for “sneaker” and “territorial” males categorised to tactics based on histological findings (Table 1) (early season: sneakers < 35 mm and territorial 40 mm <, late season: sneaker < 42 mm and territorial 44 mm <).

Linear modelling was applied on log-transformed data to estimate the parameter b of the equation log(Y) = log(a) + b*log(X), where Y refers to SDG and Testes weight and X to soma weight. Standard error of estimate in parentheses. t-value and p-value are given for the estimated parameter b.