  Certain properties of maximal abelian projection are derived which suggest
that the fundamental and adjoint SU(2) string tensions are reproduced by singly
and doubly charged abelian Wilson loops, respectively. Thus, abelian dominance,
which has been observed for color sources (quarks) in the fundamental
representation, can be extended to higher representations. Numerical evidence
in support of this conjecture also for adjoint quarks is presented. The
difference between maximal abelian and local projections is elucidated and the
role of non-Wilson-like terms in the effective abelian action is discussed.
