Fig. 5From: Adaptive drift and barrier-avoidance by a fly-forage migrant along a climate-driven flywayExploring linear relationships between daily migration parameters and realized/available wind support (n = 1842 travel days). Linear relationships of a daily distance and b daily mean travel speed with daily travel time budgets. Linear relationships of (i-ii) daily travel time budgets , (iii, iv) daily distances and (v, vi) daily mean travel speed with (i, iii, v) realized wind support and (ii, iv, vi) wind support along the GCR during autumn (red) and spring (blue) migration. Y-axes for daily distances and daily mean travel speeds were log-transformed. Regression lines are estimated according a linear model (y ~ a + b*x) for each season (autumn = red; spring = blue), and are only plotted if there was a significant (P < 0.05) effect of x in at least one seasonBack to article page