higher vegetative production Effects of sedimentation Greater stem densities, larger &amp; more rigid stems Changes in available detritus Differences in quantity &amp; quality of detritus Decreased bottom-dwelling algae production Lower light levels beneath Spartina canopy Increased wrack deposition &amp; disturbance to upper marsh Greater stem production &amp; subsequent deposition in high marsh Changes in habitats for native wetland animals Greater stem densities Changes in bottom-dwelling invertebrate populations Higher root densities & 
(higher vegetative production Effects of sedimentation Greater; stem; densities) (quality of detritus; Decreased; ) (Greater; stem; densities Changes in bottom-dwelling invertebrate populations Higher root densities)
higher vegetative production Effects of sedimentation Greater quality of detritus Greater
stem Decreased stem
densities
densities Changes in bottom-dwelling invertebrate populations Higher root densities