Figure 6
From: Diversity, dynamics, direction, and magnitude of high-altitude migrating insects in the Sahel
The number of insects per species crossing at altitude (50–250 m agl) imaginary lines perpendicular to the prevailing wind. Migrants per night per 1 km (left Y axis, blue) are superimposed on the annual number per 1,000 km line across Mali (right Y axis, red, see text).
