STREAM ECOLOGY & SELF PURIFICATION: An Introduction - Chapter 2 docx

... Approach." Vert. Int. Ver. Theor. Awg Liminol., 22 ,l -2 2 ,1984. Copyright © 20 01 by Technomic Publishing Company, Inc. 24 STREAM GENESIS AND STRUCTURE Turbulentflow-occurs in a stream ... Figure Deposition /;,? sion 2. 2 A meandering reach. High Flow. .A Intermediate, , Water surface - - - - flow * _ _ _ .L - -...

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... 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 on their own and serve as food ... species present in any one part of the stream. Such balance ensures that there is never an overabundance of one species. Nature structures the stream environment so that plant and animal...

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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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... Community ecology- the study of the structure and dynamics of animal and plant commu- nities. Population ecology provides modeling tools that can be used for predicting corn- munity structure and ... Hawaiian Volcano Observatory http://hwo.wr.usgs.gov/volcanowatch/l999/99012l.hl, p. 1.3, February 1999. Copyright © 20 01 by Technomic Publishing Company, Inc. Population ecology-...

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... salt- water (about 97% of the earth's water) in the oceans, and less than 3% is fresh- water. Of the latter, 77% is frozen in polar ice caps and glaciers, 22 % is ground- water, and ... the stream& apos;s "DNA." More specifically, if we were to analyze a sample of stream water, at any given time or place, the dissolved and suspended constitu- ents found in the stream...

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... 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-sediment ... plants; leaks and overflows from sewage lines and septic tanks; stormwater runoff from agricul- tural and urban lands; and decaying vegetation, including aquatic plants from the stream itsel...

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... 3.37 2 7.63 4.73 3 7.49 6.68 4 7 .20 9.08 5 6.75 11.77 6 6 .21 14.61 7 5.65 17. 42 8 5. 12 20.07 9 4.64 22 .45 10 4 .23 24 .51 11 3.89 26 .20 12 3.63 27 .54 13 3. 42 28.56 14 3 .27 29 .29 15 ... 13 .27 2. 74 2 13 .26 2. 87 3 13 .22 3.03 4 13.14 3 .20 5 13.03 3.35 6 12. 94 3.46 7 12. 87 3.53 8 12. 83 3.57 9 12. 81 3.59 10 12. 80 3.60 11 12. 80 3.60 12...

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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 ... S and M - S, 95.46% of the results lie between M + 2s and M - 2s, and 99.74% of the results lie between M + 3s and M - 3s. Therefore, if precise, then 68 .26 %...

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... a 14.18 c 14.19 c 14 .20 a 14 .21 c 14 .22 a 14 .23 c 14 .24 c 14 .25 a 14 .26 d 14 .27 c 14 .28 d 14 .29 a Copyright © 20 01 by Technomic Publishing Company, Inc. CHAPTER 14 Final Comprehensive ... esis." Evolution, 36, 81 0-8 21 , 19 82. Tansley, A. G., "The use and abuse of vegetational concepts and terms." Ecology, 16: 28 4-3 07. Tchobano...

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... Linde - man claimed, for instance, that the ratio of transfer up the food pyramid var- ied from 10 to 22 .3% depending on the trophic level. Lindeman, 7 years following Tansley’s definition of an ... fire and by human fire suppression. With the loss of fire certain plant species dis - © 20 00 by CRC Press LLC organisms to differ from the top-down forces organisms have on the lan...

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