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Ecological Processes

Table 3 Number and abundance of species in soil seed bank by invasion rate

From: Variations in soil properties and native woody plant species abundance under Prosopis juliflora invasion in Afar grazing lands, Ethiopia

Parameters

Site

Invasion rate

High

Medium

Low

None

Density

Amibara

65.2 ± 1.2

45.0 ± 0.89

25.0 ± 0.54

15.0 ± 0.78

Gewane

56.0 ± 1.56

86.0 ± 1.78

8.0 ± 1.08

17.0 ± 1.42

Mean

60.5 ± 0.76b

65.5 ± 3.46a

16.5 ± 1.43c

16.0 ± 0.16d

Species richness

Amibara

13.0 ± 0.52

12.6 ± 0.72

8.4 ± 0.25

6.5 ± 0.34

Gewane

15.0 ± 0.45

16.2 ± 0.56

9.4 ± 0.24

8.0 ± 0.21

Mean

14.0 ± 0.43a

14.4 ± 0.63a

8.9 ± 0.23b

7.3 ± 0.27c

  1. (“none”; P. juliflora cover ≤ 3%), low cover (“low”; P. juliflora cover 3–40%), intermediate cover (“med”; P. juliflora cover 40–60%), and high cover (“high”; P. juliflora cover > 60%). Different superscript letters indicate significant differences (p < 0.05) among invasion rates according to Tukey’s HSD test
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