Table 3 Differential prevalence of plant species between microhighs (“H”) and microlows (“L”).

From: Temporal change in plant communities and its relationship to soil salinity and microtopography on the Caspian Sea coast

Species

‘Late’ site

‘Early’ site

H

L

p-value*

Preferred**

H

L

p-value*

Preferred**

Atriplex tatarica

0.007

0.076

0.002

L

0.047

0.071

0.613

n.s.

Bassia hyssopifolia

0.007

0.025

0.241

n.s.

0.000

0.008

1.000

n.s.

Climacoptera crassa

0.517

0.093

0.000

H

–

–

–

–

Frankenia hirsuta

0.026

0.490

0.000

L

0.581

0.669

0.150

n.s.

Halocnemum strobilaceum

0.026

0.053

0.279

n.s.

0.000

0.004

1.000

n.s.

Kalidium foliatum

0.351

0.612

0.000

L

–

–

–

–

Limonium caspium

–

–

–

–

0.081

0.031

0.066

n.s.

Limonium scoparium

–

–

–

–

0.174

0.047

0.001

H

Petrosimonia brachiata

0.901

0.622

0.000

H

0.419

0.674

0.000

L

Petrosimonia oppositifolia

–

–

–

–

0.174

0.229

0.361

n.s.

Suaeda acuminata

0.026

0.091

0.014

L

0.012

0.101

0.005

L

Suaeda microphylla

0.947

0.912

0.256

n.s

–

–

–

–

Tamarisk big (> 1 m)

–

–

–

–

0.744

0.238

0.000

H

Tamarisk medium (0.5–1 m)

–

–

–

–

0.372

0.459

0.167

n.s.

Tamarisk small (< 0.5)

–

–

–

–

0.314

0.454

0.023

L

Tamarisk all

–

–

–

–

0.860

0.833

0.609

n.s.

  1. For each species, the fraction of plots at which it was found (i.e. the number of plots where this species was found divided by the total number of plots) is shown.
  2. *p-value of Fisher’s exact test. Species witht p-value < 0.05 after Bonferroni correction for multiple testing are in bold. Species for which the p-value was significant only before the correction are underlined.
  3. **Preferred site according to Fisher’s exact test; n.s.—test is insignificant. H—microhighs. L—microlows. Dash—plant species did not occur at the key site.
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