STREAM ECOLOGY & SELF PURIFICATION: An Introduction - Chapter 5 pps

... abandonment, the climax oak-hickory forest was restored. 5. 6 POPULATION RESPONSE TO STRESS AND STREAM ECOLOGY It is important to understand that the dynamic balance of the stream ecosys- ... dynamics of animal and plant com- muni ties. 5. 6 produces aggregation, the result of responses by plants and animals to habitat differences. 85~ iller, G. T., Environmental Science:...

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... 10.69 4 7.13 15. 48 5 6.40 20.88 6 5. 59 26 .55 7 4.79 32.17 8 4.03 37.47 9 3. 35 42.24 10 2.76 46. 35 11 2.28 49.73 12 1.89 52 .41 13 1.60 54 . 45 14 1.39 55 .92 15 1.24 56 . 95 Fast River: ... 10.69 4 6.73 15. 48 5 5.83 20.88 6 4. 75 26 .55 7 3.63 32.1 7 8 2 .57 37.47 9 1.62 42.24 10 0.80 46. 35 11 0.12 49.73 12 0.00 52 .41 13 0.00 54 . 45 14...

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... typically an S1 greater than 1 .5. Many variables affect the degree of sinuosity, however, and S1 values range from near unity in simple, well-defined channels to four in highly mean- dering channels ... shape channels, or move signifi- cant quantities of sediment in all but sand-bed streams, which can experience change more rapidly. During extreme events, the greatest scour occurs...

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... Sediments Animal 'N' Excretion I Ammonia ++ Organic Nitrogen as Amino Acids Figure 3.3 Nitrogen cycle. the topic of stream ecology and self- purification, it is important to ... compounds. However, an important distinction between cycling of sulfur and cycling of ni- trogen and carbon is that sulfur is "already fixed." That is, plenty of sulfate an-...

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... the major determinant of stream water chem- istry locally as well. These "determinants" of stream water chemistry are actu- ally the stream& apos;s "DNA." More specifically, ... human use), including water for drinking, washing, agriculture, energy production, transportation, recreation, and waste disposal. Humans cannot live without water. Consider the 5- 5...

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... suspended or- ganisms, the plankton, such as phytoplankton (plants) and zooplankton (ani- mals), and some consumers such as insects and fish. Plankton are small organ- isms that can feed and reproduce ... particularly, stream ecology and self- purification, the two different ecosystems, land and freshwater habitats, will be contrasted. 95~ arr, J., Design for a Livable Planet. N...

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... salts, toxic metals, and their compounds-water-soluble inorganic chemicals (4) Water-soluble nitrate and phosphate salts-inorganic plant nutrients (5) Insoluble and water-soluble oil, gasoline, ... pesticides, cleaning sol- vents, and many others-organic chemicals (6) Insoluble particles of soil, silt, and other inorganic and organic materials that can remain suspended in water-sedim...

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... the left and right stream banks separately. Define the "left" and "right" banks by standing at the downstream end of the study stretch and look up- stream. Each bank is evaluated ... time of day and seasons. There are three fundamental sizes of plankton: nannoplankton, microplankton, and macroplankton. The smallest are nannoplankton that range in size from 5- 6...

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... 14.42 a 14.43 b 14.44 c 14. 45 b 14.46 c 14.47 b 14.48 c 14.49 a 14 .50 b 14 .51 c 14 .52 c 14 .53 c 14 .54 b 14 .55 c 14 .56 c 14 .57 d 14 .58 a 14 .59 b 14.60 d 14.61 Food web ... R. and Marsson, M., Okologie der pjlanzlichen saprobiean. Berichte der Deutchen botanischen Gesellschaft., 26a: pp. 50 5- 5 19, 1906. (Translated 1976. Biology of plant saprobia),...

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... four- to sevenfold under the trees, and total carbon and potassium increase two- to threefold. Furthermore, nitrogen, calcium, and magnesium increase one-and-a-half to threefold, and cation exchange ... AM-mediated N transfer from the root zone of soybean to maize varies with the mode of N input, (2) transfer of nutrients other than N is variable and can be significant and bidirectional, and...

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