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Fig. 1 | BMC Ecology and Evolution

Fig. 1

From: Relationships between male secondary sexual traits, physiological state and offspring viability in the three-spined stickleback

Fig. 1

A Relationship between body weight and the quality of courtship in males with a nest (N = 20). B Relationship between body weight and relative size of red colour area (N = 36 measurements, N = 18 fish). C Relationship between relative size of nuptial colour area and the level of oxidative DNA damage in sperm (N = 18). Courtship and oxidative DNA damage in sperm are transformed values. Regression lines are presented for significant relationships (P < 0.05)

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