Figure 3.

Back-transformed means (±95% CI) of post-capture testosterone levels were similar during the early and the parental breeding phase, and between the low- and the high-altitude population. However, the physiological potential to mount an androgen response to GnRH was significantly higher during the early breeding than during the parental phase, and higher in the high than in the low-altitude population. Sample sizes are given above the bars. Light grey bars, post-capture; dark grey bars, GnRH induced.