Ecological Archives E086-105-A3

Kari Klanderud and Ørjan Totland. 2005. Simulated climate change altered dominance hierarchies and diversity in an alpine biodiversity hotspot. Ecology 86:2047–2054.

Appendix C (Table C1). Standardized regression coefficients and significance values (in parentheses) of simple linear regressions between change in Dryas octopetala cover and change in community diversity parameters from 2000 to 2003, in control plots (C), plots with warming (T), nutrient addition (N), and warming combined with nutrient addition (TN).

Community
response

Treatments

C

T

N

TN

Total diversity

-0.14 (0.696)

-0.56 (0.091)

0.46 (0.180)

0.15 (0.678)

- richness

-0.17 (0.649)

-0.73 (0.017)

0.57 (0.088)

-0.31 (0.383)

- abundance

-0.49(0.149)

-0.45 (0.187)

0.33 (0.348)

-0.54 (0.110)

Graminoid diversity

0.07 (0.850)

0.35 (0.319)

-0.08 (0.818)

0.09 (0.797)

- richness

-0.08 (0.818)

-0.17 (0.646)

0.28 (0.427)

-0.16 (0.665)

- abundance

0.06 (0.876)

0.07 (0.847)

-0.37 (0.292)

-0.10 (0.780)

Forb diversity

0.06 (0.874)

-0.76 (0.011)

0.18 (0.622)

-0.53 (0.116)

- richness

0.19 (0.594)

-0.55 (0.100)

-0.03 (0.931)

-0.28 (0.433)

- abundance

-0.02 (0.954)

-0.78 (0.008)

-0.19 (0.603)

-0.65 (0.042)

Dwarf shrub diversity

0.41 (0.244)

0.25 (0.480)

0.24 (0.511)

0.24 (0.507)

- richness

0.32 (0.362)

0.01 (0.985)

-0.18 (0.623)

-0.08 (0.817)

- abundance

0.38 (0.283)

0.23 (0.525)

-0.11 (0.770)

-0.27 (0.449)

Bryophyte diversity

-0.38 (0.278)

-0.56 (0.094)

0.41 (0.235)

-0.45 (0.197)

- richness

-0.17 (0.636)

-0.65 (0.043)

0.56 (0.090)

-0.41 (0.236)

- abundance

-0.56 (0.093)

-0.36 (0.306)

0.61 (0.063)

-0.55 (0.102)

Lichen diversity

-0.56 (0.095)

-0.13 (0.715)

0.63 (0.052)

-0.19 (0.602)

- richness

-0.45 (0.197)

-0.40 (0.253)

0.59 (0.070)

0.21 (0.571)

- abundance

-0.47 (0.169)

-0.05 (0.894)

0.02 (0.948)

0.13 (0.712)

   Notes: Bold and bold italic P values are significant at the 0.05 and 0.1 levels, respectively. Sample sizes are 10.



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