|SREL Reprint #1883|
Relative Importance of Mechanisms Determining Decomposition in a
Southeastern Blackwater Stream
ABSTRACT.-Cliemical inhibitors were used to separate the effects and determine the relative
importance of microbial degradation, flow-related fragmentation, and shredder fraginenta6on on
sweet gum (Liquidambar slyraciflua) decomposition rates in Upper Three Runs, in South
Carolina. 'A'e correlated several abiotic and biotic variables (current velocity accumulation of
inorganic and fine particulate organic matter, water depth, bacterial density and shredder biomass)
with the decomposition of individual sweet gum leaf packs. NA'e also surveyed the biomass and
density of shredders in natural leaf accumulations and in constructed leaf packs to help determine
the importance of shredders in decomposition.
SREL Reprint #1883
Rader, R.B., J.V. McArthur, and J.M. Aho. 1994. The relative importance of mechanisms determining decomposition in a southeastern blackwater stream. The American Midland Naturalist 132:19-31.