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| Type of paper: | Essay |
| Subject area: | Business |
| Academic level: | College |
| Style: | MLA |
| Size: | 45.0 kB |
| Word count: |
439 words/2 pages
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| Mark awarded: | |
| Author: | Micha Frederick |
| Date submitted: | 2008-11-18 15:54:10 |
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| Tags: | species, report, problems, lab, assignment, Sample, Gould, chemestry, Sample Size, Upper Quartile, Punctuated Equilibrium, Pare |
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PLOT SAMPLING 1 . Raw data table Species Diameters Sample 1 Species 2 .93 1 .3 Species 5 .57 Species 6 1 .23 1 .89 Species 8 1 .66 1 .38 .53 Species 9 .76 2 .1 Sample 2 Species 1 1 .45 .67 .92 .43 Species 2 1 .58 .35 Species 4 .53 Species 5 .77 .43 .21 Species 6 .9 Species 7 .84 1 .4 Species 8 .55 2 .4 Species 9 1 .13 .45 .78 .67 Sample 3 Species 1 .32 .41 .33 1 .1 Species 4 .58 .83 .19 Species 6 .61 2 .21 Species 9 .96 1 .14 Sample 4 Species 2 3 .43 1 .6 Species 3 .45 .97 Species 5 .34 .88 .56 Species 6 1 .66 Species 8 .69 .54 1 .17 Sample 5 Species 1 1 .87 .54 .97 Species 2 .52 .32 Species 3 1 .64 .67 .79 Species 4 2 .6 Species 6 .51 .69 .72 Species 7 .89 1 .45 2 .3 .59 Species 9 .79 .67 1 .12 Most common species are : 1 , 2 , 6 , 8 , 9 . 2 . Density and frequency of the five most common species : Density Number of species / Sum of all plot areas Frequency Number of plots which have at least 1 ind / plots Sum of all plot areas 0 .1 CH 5 0 .5 m2 For species 1 : Density 10 / 0 .5 20 Frequency 3 / 5 0 .6 Species Number Number of plots Density Frequency Species 1 10 3 20 .6 Species 2 8 4 16 .8 Species 6 9 5 18 1 Species 8 8 3 16 .6 Species 9 11 4 22 .8 3 . Relative densities and relative frequencies for the five most common species : Relative Density Density / Relative Frequency Frequency / For species 1 : RD 20 / 92 0 ,22 RF .6 / 3 .8 0 ,16 Species Relative Density Relative Frequency Species 1 .22 .16 Species 2 .17 .21 Species 6 .2 .26 Species 8 .17 .16 Species 9 .24 .21 4 . Dominance of species 1 : Dominance Area covered by a species / Sum of all plot areas pecies (0 ,5 Diameter )2 Diameters 1 ,45 0 ,67 0 ,92 0 ,43 0 ,32 0 ,41 0 ,33 1 ,10 1 ,87 0 ,54 Basal area 4 ,55 2 ,10 2 ,89 1 ,35 1 ,00 1 ,29 1 ,04 3 ,45 5 ,87 1 ,70 28 ,29 For species 1 : Dominance 28 ,29 cm2 / 0 ,5 m2 56 ,58 cm2 /1m2 6 . The most abundant are species 9 . In 1 hectare there are 10 ,000 m2 . So , if there are 11 individuals on 0 .5 m2 , then on 1 ha there are 11 CH (10000 / 0 .5 220000 individuals . 7 . Values of density , dominance and frequency converted to relative values in order to simplify the obviousness of species ' values part in distribution and relative importance of each species in the community . 8 . One of the advantages of measuring frequency is that there are fewer opportunities for observer bias due to inadequate or inconsistent... |
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