Table 2 Invasive alien plant species number and abundance in the plots (each 10 m × 5 m) surveyed in eight National Parks in Java. Alien trees and lianas in the plots were counted and alien shrub and herb covers were estimated.

From: Alien plant invasions of protected areas in Java, Indonesia

National Park

Land area (km2)

Total plots

Total alien spp.

Plots with aliens

Tree/ liana count

Shrub/ herb cover

Most common aliens

N of Plots

Ujung Kulon

786.2

55

8

6

0.02

0.41

Hyptis capitata

2

Lantana camara

2

Gunung Gede Pangrango

219.8

32

14

24

0.19

15.14

Ageratina riparia

15

Brugmansia candida

5

Solanum americanum

4

Passiflora ligularis

4

Gunung Merapi

64.1

48

13

38

4.31

18.69

Ageratina riparia

29

Chromolaena odorata

21

Acacia decurrens

15

Gunung Merbabu

57.3

38

14

31

1.21

21.49

Ageratina riparia

30

Austroeupatorium inulaefolium

21

Acacia decurrens

15

Bromo Tengger Semeru

502.8

94

23

72

1.34

28.10

Ageratina riparia

46

Chromolaena odorata

43

Acacia decurrens

21

Meru Betiri

554. 0

14

27

14

4.36

12.68

Eleutheranthera ruderalis

12

Mikania micrantha

11

Chromolaena odorata

9

Alas Purwo

430.2

41

8

13

0.07

2.28

Chromolaena odorata

13

Hyptis capitata

6

Baluran

239.4

81

24

63

3.33

5.4

Passiflora foetida

24

Acacia nilotica

21

Chromolaena odorata

18