analysis/reports/submission2/appendices/s9_fia_comparison.md

In diazrenata/scadsanalysis: What the Package Does (One Line, Title Case)

Comparison of FIA and equally-sized communities

Renata Diaz 2021-04-02

• Percentile scores
  • Histograms
  • Proportions of extreme percentile scores
  • K-S test results
• Breadth indices
  • Histograms
  • K-S test results

We identified \~330 communities in FIA with exact matches, in terms of S and N, among communities from other datasets. We then compared the distributions of percentile scores and breadth indices of FIA communities to communities from other datasets, visually and using Kolmogorov-Smirnov tests.

Percentile scores

Histograms

Proportions of extreme percentile scores

| Dataset | High dissimilarity | High proportion of rare species | High skew | Low Simpson | Low Shannon | |:---------------|:-------------------|:--------------------------------|:--------------|:-------------|:-------------| | FIA | 17%; n = 373 | 4.8%; n = 330 | 7%; n = 330 | 15%; n = 330 | 16%; n = 330 | | Other datasets | 17%; n = 373 | 6.1%; n = 330 | 6.4%; n = 330 | 15%; n = 330 | 15%; n = 330 |

K-S test results

| | Variable | K-S D | p-value | |:----|:----------------------------------|----------:|----------:| | D…1 | Simpson | 0.0575758 | 0.6447379 | | D…2 | Skew | 0.0000000 | 1.0000000 | | D…3 | Shannon | 0.0606061 | 0.5794869 | | D…4 | Number of rare species | 0.0363636 | 0.9812077 | | D…5 | Dissimilarity to central tendency | 0.0424242 | 0.9277987 |

Breadth indices

Histograms

K-S test results

| | Variable | K-S D | p-value | |:----|:----------------------------------|----------:|----------:| | D…1 | Simpson | 0.0393939 | 0.9599607 | | D…2 | Skew | 0.0000000 | 1.0000000 | | D…3 | Shannon | 0.0424242 | 0.9277987 | | D…4 | Number of rare species | 0.0333333 | 0.9930019 | | D…5 | Dissimilarity to central tendency | 0.0268097 | 0.9993106 |

diazrenata/scadsanalysis documentation built on May 14, 2021, 6:59 p.m.