Vascular plant breakdown in freshwater ecosystems. Webster, J. Annual Review of Ecology Systems, 1986.
Vascular plant breakdown in freshwater ecosystems. [pdf]Paper  abstract   bibtex   
This is a review of the breakdown of detritus in freshwater ecosystems derived from aquatic vascular plants and riparian trees and herbs. The relative dominance of allochthonous vs. autochthonous sources varies between stream systems and with local conditions within streams. Many low-order streams that lack canopies of riparian vegetation may be dominated by autochthonous primary production of nonvascular plant origin. Theoretical models predict increasing importance of autochthonous production by periphyton and aquatic vascular plants for middle-order streams but less importance of these sources in very large streams, mainly due to light limitations. The direct contribution of wood to stream energy budgets is minimal because wood is resistant to breakdown. However, woody debris is indirectly important because it creates habitat for aquatic organisms, promotes physical stability of the stream channel, and retards loss of more readily available food sources.

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