Several errors were introduced in the preparation of this article for publication.

In the third sentence of the "Random walk with one turning angle" section of the Results, a symbol was removed from the definition of the Fourier-Laplace-transform. The correct definition can be found here:

In the second sentence of the second paragraph of the "Comparison of the chemotactic drift speed for E. coli and V. alginolyticus" section of the Results, a symbol was removed from the Rotational diffusion value. The correct value can be found here:

The publisher apologizes for these errors.