| fire helps restore natural disturbance regime to benefit rare and endangered marsh birds endemic to the colorado river. | large flood events were part of the historical disturbance regime within the lower basin of most large river systems around the world. large flood events are now rare in the lower basins of most large river systems due to flood control structures. endemic organisms that are adapted to this historical disturbance regime have become less abundant due to these dramatic changes in the hydrology and the resultant changes in vegetation structure. the yuma clapper rail is a federally endangered bird th ... | 2010 | 21049887 |