Fig. 2From: The role of climate factors in geographic variation in body mass and wing length in a passerine birdCorrelations between body mass or wing length of P. montanus and altitude. a Body mass vs altitude (df = 218, t = 4.125, p < 0.001), b wing length versus altitude (male: df = 113, t = 2.972, p = 0.004, open circles and dashed lines; female: df = 77, t = 2.811, p = 0.006, black dots and solid lines)Back to article page