Table 6

Plant diversity at the study sites and after warming

2003

H

H

H change (2005–2003)

Locations

Community

nr species

Control

OTC

Control

OTC


Falkland Islands

grass

5 ab

0.8 (0.2)a

0.6 (0.2)

0.5 (0.1)

-0.0 (0.2)

dwarf shrub

6 a

1.1 (0.2)ab

1.1 (0.2)

-0.1 (0.1)

-0.2 (0.1)

Signy Island

lichen

7 a

1.3 (0.1)ab

1.1 (0.2)

-0.1 (0.1)

-0.1 (0.1)

moss

3 b

0.8 (0.1)a

0.7 (0.0)

-0.0 (0.0)

-0.0 (0.0)

Anchorage Island

lichen

8 a

1.5 (0.1)b

1.3 (0.1)

-0.3 (0.1)

-0.5 (0.1)

moss

3 b

0.6 (0.1)a

0.9 (0.1)

0.0 (0.1)

-0.1 (0.2)


Species number and diversity of the vegetation expressed in Shannon's diversity index (H). Different letters indicate significant (P < 0.05 Tukey HSD) differences in diversity between communities (tested for controls only as there was no effect after two years of warming). Values between brackets are se.

Bokhorst et al. BMC Ecology 2007 7:15   doi:10.1186/1472-6785-7-15

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