Figure 2From: Adaptive behavioural syndromes due to strategic niche specializationWhen breeders were present, the frequency of aggressive displays towards an intruder correlated negatively with the frequency of digging (r s = -0.69, N = 12; P = 0.01). This relationship was also significant for females only (r s = -0.66, N = 9, P = 0.05).Back to article page