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Connections of a River - Connectivity
Temporal connections (pg 1 of 3)

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A stream exhibits a pattern of connectivity moving from headwaters to mouth, such as decreasing gradient, increasing size, changing sources of food and energy, evolving assemblages of fish and other organisms.

Similarly, a stream exhibits temporal connectivity-that is, it displays continuous physical, chemical, and biological interactions over time, according to a rather predictable pattern. It is, literally, a river of time. These patterns and continuity are important to the functioning of the ecosystem.

Some of these processes have already been discussed. Over time, sediment shifts, meanders form, bends erode, oxbows break off from the main channel, channels shift and braid. A stream rises and falls according to seasonal patterns, depending on rain and snowmelt. The stream channel has adjusted to these normal fluctuations, and stream organisms have in many cases evolved to depend on them.


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Introduction
Flow
Shape
Connections
Description
Longitudinal
Lateral
Vertical
Temporal
Quality
Life
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