Contributions to Zoology, 69 (3) (2000)Luca Luiselli; Francesco M. Angelici; Godfrey C. Akani: Large elapids and arboreality: the ecology of Jameson’s green mamba (Dendroaspis jamesoni) in an Afrotropical forested region
Results

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Sex ratio and sexual size dimorphism

Adult sex-ratio (males : females = 1.17 : 1, total n = 63) did not differ significantly from equality (binomial test with df = 1: P > 0.1).

Excluding young specimens (< 100 cm total length), we measured the total length of 22 males and 27 females. There was considerable sexual size dimorphism: the males (x_ = 166.4 cm, SD = 25.9) attained much larger sizes than the females (x = 146.9 cm, SD = 20.3) (Student t-test: t = 2.95, df = 47, P = 0.0049). The maximum length attained by males was 211.5 cm, and the maximum length attained by females was 174.7 cm.