  We study the electron transport in a deformable lattice modeled in the
semiclassical approximation as a discrete nonlinear elastic chain where
acoustic phonons are in thermal equilibrium at temperature T. We reveal that an
effective dynamic disorder induced in the system due to thermalized phonons is
not strong enough to produce Anderson localization. However, for weak
nonlinearity we observe a transition between ballistic (low T) and diffusive
(high T) regimes, while for strong nonlinearity the transition occurs between
the localized soliton (low T) and diffusive (high T) regimes. Thus, the
electron-phonon interaction results in weak temperature-dependent dynamic
localization.
