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The impact of invasive alien species Spathodea campanulata on native species in Bukit Barisan Selatan National Park, Sumatra, Indonesia

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Jun 18, 2025

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Figure 1.

Research location: Pemerihan Resort, Bukit Barisan Selatan National Park, Sumatra, Indonesia
Research location: Pemerihan Resort, Bukit Barisan Selatan National Park, Sumatra, Indonesia

Figure 2.

Sample plot
Sample plot

Figure 3.

Density curves of Spathodea campanulata and Vitex pubescens
Density curves of Spathodea campanulata and Vitex pubescens

Evenness index (E) for each growth phase

No. Growth phase E Category
1 seedling 0.67 higher evenness; stable community
2 sapling 0.67 higher evenness; stable community
3 pole 0.78 higher evenness; stable community
4 tree 0.47 moderate evenness; unstable community

IVI For Each plant species based on growth phase

No. Species Name Growth Phases
seedling sapling pole tree
1 2 3 4 5 6
1 Acacia kekapur 1.94 0 0 0
2 Alstonia scholaris 0 0 13.80 25.88
3 Anthocephalus cadamba 0 0 0 8.84
4 Archidendron jiringa 0 0 0 7.66
5 Bridelia tomentosa 8.55 0 11.53 0
6 Callicarpa tomentosa 0 0 46.66 6.79
7 Cananga odorata 0 4.67 0 7.25
8 Causonis trifolia 1.94 0 0 0
9 Centotheca lappacea 13.41 0 0 0
10 Clidemia hirta 13.41 0 0 0
11 Coffea canephora 6.25 0 0 0
12 Cratoxylum sumatranum 0 4.67 0 0
13 Croton argyratus 1.94 0 0 0
14 Dicranopteris curranii 1.94 0 0 0
15 Dillenia indica 0 4.67 0 0
16 Dimocarpus longan 1.94 0 0 0
17 Ficus septica 1.94 0 0 0
18 Glochidion arborescens 0 4.67 8.69 9.85
19 Glochidion obscurum 0 9.34 14.28 7.50
20 Glochidion zeylanicum 0 0 13.40 9.33
21 Hypobathrum frutescens 0 0 8.88 0
22 Hyptis capitata 1.94 0 0 0
23 Kyllinga nemoralis 7.92 0 0 0
24 Lantana camara 1.94 0 0 0
25 Leea indica 17.45 45.08 0 0
26 Litsea sp. 2.21 4.67 0 0
27 Lygodium circinnatum 7.16 0 0 0
28 Melastoma malabathricum 3.82 0 0 0
29 Mussaenda frondosa 2.21 0 0 0
30 Nauclea officinalis 1.94 9.34 0 0
31 Phyllanthus sp. 1.94 0 0 0
32 Piper sp. 1.94 0 0 0
33 Polyalthia lanceolate 0 9.34 0 0
34 Pseudovaria reticulata 0 4.67 0 0
35 Pteropermum javanicum 2.21 0 0 0
36 Saurauia bracteosa 2.21 0 0 0
37 Selaginella wildenowii 46.56 0 0 0
38 Shorea javanica 0 4.67 40.00 0
39 Shorea ovalis 1.94 0 0 0
40 Smilax leucophylla 2.21 0 0 0
41 Spathodea campanulata 11.52 48.15 100.72 196.99
42 Spatholobus ferrugineus 6.30 4.67 0 0
43 Spondias pinnata 1.94 0 0 0
44 Syzygium fastigiatum 0 4.67 0 0
45 Syzygium polyantthum 8.77 27.42 13.69 0
46 Terminalia bellirica 1.94 0 0 0
47 Tetracera indica 1.94 0 0 0
48 Vernonia arborea 1.94 0 0 6.59
49 Vitex pubescens 6.89 9.34 20.51 76.40

IVI: Importance value index_ Shannon–Wiener Diversity index (H’) for each growth phase

No. Growth phase H’ Category
1 seedling 2.34 moderate
2 sapling 1.85 moderate
3 pole 1.94 moderate
4 tree 1.13 moderate
Language:
English
Publication timeframe:
4 times per year
Journal Subjects:
Life Sciences, Plant Science, Medicine, Veterinary Medicine