Indirect gradient analysis - Alaska Geobotany Center

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Relating the plot ordination to environmental data pH4.5 If clear patterns exist, isolines can be drawn to show trends of environmental variables within the ordination space. GI>6 SM>90% SM=41-60% SM
Polar ordination • Developed by Bray and Curtis (1957) to analyze the upland forests of Wisconsin. • Followed a fix set of rules that could be done by hand or by a computer. • Based on Euclidian geometry. • Easily understood and good method for teaching the fundamentals of ordination.
Page 1 and 2: Lesson 18 Ordination II: Indirect g
Page 3 and 4: Vegetation Ecosystem Environmental
Page 5 and 6: Indirect gradient analysis • “I
Page 7 and 8: Plot ordinations vs. species ordina
Page 9 and 10: 1-, 2-, and 3-dimensional plot ordi
Page 11 and 12: Species ordination Species ordinati
Page 13: Relating the plot ordination to env
Page 17 and 18: Steps in calculation of the ordinat
Page 19 and 20: Jaccard s and Sorenson s similarity
Page 21 and 22: Similarity and dissimilarity for pl
Page 23 and 24: Step 2. Matrices of similarities an
Page 25 and 26: Calculation of x values along the 1
Page 27 and 28: Geometric determination of plots al
Page 29 and 30: Step 4. Define the second axis and
Page 31 and 32: Plotting the ordination Bray and Cu
Page 33 and 34: Polar ordination weaknesses and adv
Page 35 and 36: Example of isoline diagrams from Ba
Page 37 and 38: Example of Biplot Diagram from Anja
Page 39 and 40: Relating the ordination to environm
Page 41 and 42: Other ordination methods • Princi
Page 43 and 44: Summary • Oridination is based on

Indirect gradient analysis - Alaska Geobotany Center

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