Individual dispersal vectors, seasonal and annual means and variances and wind roses.

<p>Plots in the left column are for the dry season and on the right for the wet season. The top row are dispersal vectors for each night and enclosure experiments were conducted (black lines with open circles) with the circular mean and variance of movement directions for 2009 in blue and 2010 in red. Vectors in this row are plotted relative to magnetic East at 0 radians (all angles measured counterclockwise). The middle row of plots are wind roses for nights when the experiment was conducted as measured from 18:00 to 06:00, again with East pointing to the right. The percent calm conditions is shown by the size of the center circle. Each branch represents the wind coming from that direction, with its thickness proportional to the speed of the wind (see scale at center). The length of each branch is proportional to the frequency of wind coming from that direction. The bottom row of the figure shows individual dispersal vectors plus means and variances relative the the mean wind direction on the night the experiment was conducted (upwind direction is 0 radians).