[Mn/α] versus [Fe/H] for each of the α elements Mg and Ca, for the Sculptor (blue dots), Fornax (red dots), Carina (dark green symbols), and Sextans (green symbols) galaxies. The key to the symbols is the same as in Fig. 3. For comparison, we provide results for field Milky Way stars, gathered from the literature: the open and full black dots are the thin and thick, respectively, disk dwarf stars measured by Bensby et al. (2003), Bensby et al. (2005), and Feltzing et al. (2007). The full grey symbols are from Cayrel et al. (2004) (round dots), and Gratton et al. (2003) (squares).