physical.doc - -1 TIEE Teaching Issues and Experiments in Ecology Volume 7 August 2011 Using Stream Leaf Packs to Explore Community Assembly STREAM

physical.doc - -1 TIEE Teaching Issues and Experiments in...

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- 1 - TIEE Teaching Issues and Experiments in Ecology - Volume 7, August 2011 Using Stream Leaf Packs to Explore Community Assembly STREAM PHYSICAL CHARACTERISTICS DATA SHEET Measure a 10m segment of your stream to collect the following measurements: Stream width: Measure the stream at three different spots along your length and find an average: _________ Water appearance/odor: ___ clear ____ clear-brown _____ milky _____ greenish ___ foamy ____ muddy _____ multi-color _____ other (describe) Stream velocity: Step 1: Stream segment width Find the average width of your stream segment at the top, middle, and bottom end of your segment. Width top: _______ Width middle: ______ Width bottom: ______ Average: ______ m Step 2: Stream segment velocity Using your segment, drop a ping pong ball or a tennis ball (depending on the perceived velocity of your stream-a ping pong ball works better in slower moving water) and record the speed at which the object travels the length of the segment. You should do this at the left, middle, and right side of the stream, and then average your measurements. TIEE , Volume 7 © 2011 – Jennifer H. Doherty, Cornelia Harris, Laurel Hartley , and the Ecological Society of America. Teaching Issues and Experiments in Ecology
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  • Spring '14
  • DennisA.Petruska
  • Orders of magnitude, Stream bed, Ecological Society of America

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