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Title:

What is a Plant Community

Description:

(CALY SAVI)-(POPA JUBA) CALY = Carex lyngbei. SAVI ... JUBA = Juncus balticus. Methods Plant Community Indicator. Not interested in individual species ... – PowerPoint PPT presentation

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Tags: community | juba | plant

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Title: What is a Plant Community


1
(No Transcript)
2
Introduction
  • What is a Plant Community?
  • Why are they important?
  • How have they been used at this site?
  • What methods of analysis have been used?
  • Importance of visualization
  • Use of kriging

3
Study Site
  • Location

4
Study Site
  • Location
  • Early Uses
  • Diking
  • Restoration

5
Data
  • Previously Collected
  • Species percent cover
  • Biomass
  • Soil salinity
  • X,Y location
  • Elevation
  • Data used in analysis
  • Species percent cover
  • X,Y location

6
Methods Plant Community Indicator
  • Not interested in individual species
  • Plant community indicator development
  • NPCI

7
Methods Plant Community Indicator
  • Not interested in individual species
  • Plant community indicator development
  • NPCI
  • Based on NDVI
  • Band1-Band2/Band1Band2

8
Methods Plant Community Indicator
  • Not interested in individual species
  • Plant community indicator development
  • NPCI
  • Based on NDVI
  • Band1-Band2/Band1Band2
  • (CALYSAVI)-(POPAJUBA)
  • CALY Carex lyngbei
  • SAVI Salicornia virginica
  • POPA Potentilla pacifica
  • JUBA Juncus balticus

9
Methods Plant Community Indicator
  • Not interested in individual species
  • Plant community indicator development
  • NPCI
  • Based on NDVI
  • PCA
  • Captures variation with one variable
  • CALY
  • SAVI
  • POPA
  • JUBA

10
Methods Data distribution
  • Statistical assumptions
  • Importance of data normality
  • What is normal
  • Histogram
  • Normal QQ

11
Methods Data distribution
  • NPCI and PCA Component 1

12
Methods Data Transformation
  • ArcSIN transformation
  • Data Caveat
  • Will this work?

13
Methods Kriging
  • Ordinary Kriging
  • Prediction map
  • 1st order trend removal
  • Anisotropy
  • Comparison of Indicators
  • Ground truthing
  • A priori knowledge

14
Results Transformation
  • Data Transformation

PCA Component 1
ArcSIN Transformation
15
Results Kriging
  • NPCI

16
Results Kriging
  • Component 1

17
Results Kriging
  • ArcSIN Transformation

18
Discussion
  • Plant Community Indicator
  • Transformation
  • Kriging
  • Alternative Visual Approach

19
Discussion
  • Plant Community Indicator
  • Transformation
  • Kriging
  • Alternative Visual Approach

20
Discussion
  • Plant Community Indicator
  • Transformation
  • Kriging
  • Alternative Visual Approach

21
Discussion
  • Plant Community Indicator
  • Transformation
  • Kriging
  • Alternative Visual Approach

22
(No Transcript)
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