Ecology LabDonna Culver - Ecology Lab Donna Culver 26...

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Unformatted text preview: Ecology Lab Donna Culver 26 April, 2009 Density vs. A verage Diam eter 23 21 19 D iam eter (in.) R2 = 0.1477 17 15 13 11 9 7 5 3 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Density Fig. 1 Scatter plot showing the relationship between tree density and average tree diameter. R square value = 0.15 showing that there is no relationship. P value = 0.001442 Tree Subsampled vs. Mean 18.5 16.5 Mean Density 14.5 12.5 10.5 8.5 6.5 4.5 3 6 9 16 all Original Randomly Shuffled Tree subsampled Fig 2 Number of trees subsampled (randomly shuffled and original) vs. the mean with two standard errors Belt Transect and Point Quadrant 14.00 12.00 10.00 8.00 Mean Density belt transect point quadrant 6.00 4.00 2.00 0.00 group 1 group 2 Group Number group 3 Fig 3 The means of tree density for both belt transect and point quadrant with two standard errors. The difference between the two means for Group 1 and 3 is not statistically significant. ...
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Ecology LabDonna Culver - Ecology Lab Donna Culver 26...

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