Primary factors responsible for reduction in distribution and abundance include changes in flow and temperature regimes caused by upstream dams and introduction of nonnative fish species which compete with or prey upon them.
(Primary factors responsible for reduction in distribution and abundance; include; changes in flow and temperature regimes caused by upstream dams and introduction of nonnative fish species) (changes in flow and temperature regimes; caused; by upstream dams and introduction of nonnative fish species) (nonnative fish species; compete; with; L:upon them)
Primary factors responsible for reduction in distribution and abundance changes in flow and temperature regimes nonnative fish species
include caused compete
changes in flow and temperature regimes caused by upstream dams and introduction of nonnative fish species
by upstream dams and introduction of nonnative fish species
with L:upon them