What is River Continuum Concept PDF?
The River Continuum Concept (RCC) provides a framework for integrating predictable and observable biological features of lotic systems. It is a model for classifying and describing flowing water, in addition to the classification of individual sections of waters after the occurrence of indicator organisms.
What is a river continuum concept explain?
The River Continuum Concept (RCC) describes the entire river system as a continuously integrating series of physical gradients and associated biotic adjustments as the river flows from headwater to mouth. Within the stream system, longitudinal connectivity refers to the pathways along the entire length of a stream.
Who developed River Continuum Concept?
scientist Robin Vannote
At the end of the Rockefeller study, Stroud™ Water Research Center invited water researchers from across the country to a two-day conference. It was here that Stroud Center scientist Robin Vannote first presented his river continuum hypothesis that was to have a deep impact on aquatic studies.
Why are shredders so important in headwater streams Orders 1/3 )?
Headwaters (Stream order 1 to 3) In this section, respiration (consumption) out paces production (P/R<1). Here shredders play a major role in breaking down coarse plant material. In this area, the largest diversity of organic material can be expected.
What is the river continuum concept?
GUSHING. 1980. The river continuum concept. Can. J. Fish. Aquat. Sci. 37: 130-137. From headwaters to mouth, the physical variables within a river system present a con- tinuous gradient of physical conditions.
Who are the contributors to the River Continuum Project?
The ideas presented here have been refined through dis- cussions with our associates in the River Continuum Project, especially T. L. Bott, J. D. Hall, R. C. Petersen, and F. J. Swanson; and other colleagues including S. A. Fisher, C. A. S. Hall, L. B. Leopold, F. J. Triska, and J. B. Webster.
What is the biological succession of river continua?
The concept of biological succession (Margalef 1960) is of little use for river continua., because the com- munities in each reach have a continuous heritage rather than an isolated temporal composition within a sequence of discrete successional stages.
How predictable are River inefficiency and rdjtistments?
Both the upstrc;im inefficiency (leakage) and the downstream rdjtistments seem predictable. Communities distributed along the river are structured to process materials (specific detrital sizes, algae, and vascular hydrophytes) thereby minimizing the variance in system structure mnd function.