Ecological Archives M082-001-A2

Scott L. Wing, Caroline A. E. Strömberg, Leo J. Hickey, Fleur Tiver, Brian Willis, Robyn J. Burnham, and Anna K. Behrensmeyer. 2012. Floral and environmental gradients on a Late Cretaceous landscape. Ecological Monographs 82:23–47. http://dx.doi.org/10.1890/11-0870.1

Appendix B. Significance tests of environmental differences between floral associations data. Significance levels for pairwise Kolmogorov-Smirnov tests have been adjusted using Holm-Bonferroni correction (Sokal and Rohlf 1994). Values in bold italic font are significant at p < 0.01, those in plain italics are significant at p < 0.05, and underlined values are not significant.

TABLE B1. Percent Total Organic Carbon

Kruskal-Wallis chi-squared = 58.94, df = 5, p value = 2.012e-11

 

F11assoc

F1assoc

DN14assoc

M1assoc

F1assoc

0.000

 

 

 

DN14assoc

0.000

0.005

 

 

M1assoc

0.000

0.037

0.006

 

F2assoc

0.000

0.008

0.010

0.799

 

TABLE B2. Percent Sand

Kruskal-Wallis chi-squared = 12.15, df = 5, p value = 0.03274

 

F11assoc

F1assoc

DN14assoc

M1assoc

F1assoc

0.007

 

 

 

DN14assoc

0.307

0.328

 

 

M1assoc

0.003

0.470

0.284

 

F2assoc

0.196

0.076

0.488

0.132

 

TABLE B3. Topographic Level

Kruskal-Wallis chi-squared = 47.00, df = 5, p value = 5.681e-09

 

F11assoc

F1assoc

DN14assoc

M1assoc

F1assoc

0.001

 

 

 

DN14assoc

0.000

0.456

 

 

M1assoc

0.000

0.681

0.040

 

F2assoc

0.000

0.361

0.004

0.651

 

TABLE B4. Silt:Clay Ratio

Kruskal-Wallis chi-squared = 26.75, df = 5, p value = 6.392e-05

 

F11assoc

F1assoc

DN14assoc

M1assoc

F1assoc

0.137

 

 

 

DN14assoc

0.000

0.002

 

 

M1assoc

0.003

0.196

0.176

 

F2assoc

0.000

0.029

0.614

0.188

 

LITERATURE CITED

Sokal, R. R., and F. James Rohlf. 1998. Biometry. The principles and practice of statistics in biological research. Third edition. W. H. Freeman, New York, New York, USA.


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