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The habitat analysis was carried out to ensure that the island was …
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Biology Articles » Ecology » Wildlife reintroduction: considerations of habitat quality at the release site » Tables
Tables - Wildlife reintroduction: considerations of habitat quality at the release site
Table 1
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Main fruit tree density and numbers.
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Family
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Genus/species
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Number of trees
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Density (trees/ha)
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Guttifferae
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Garcinia bancana
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303
|
3.03
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Moraceae
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Ficus benjamina
|
106
|
2.63
|
Anacardiaceae
|
Gluta renghas
|
125
|
2.56
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Meliaceae
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Aglaia simplicifolia
|
99
|
3.10
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Rubiaceae
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Ixora sp
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96
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4.97
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Euphorbiaceae
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Baccaurea spp
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360
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2.67
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Guttifferae
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Knema laurina
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123
|
1.48
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Myrtaceae
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Eugenia spp
|
198
|
1.98
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Moraceae
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Ficus spp
|
76
|
1.06
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Annonaceae
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Polyalthia sp
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233
|
2.33
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Guttifferae
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Callophyllum rhizophorum
|
111
|
4.66
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Moraceae
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Artocarpus sp
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238
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2.91
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Myristicaceae
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Gymnacranthera sp
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53
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2.98
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Anacardiaceae
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Mangifera foetida
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228
|
2.80
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Flaucourtiaceae
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Flacourtia rukam
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189
|
2.32
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Polygalaceae
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Xanthophyllum sp
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241
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2.41
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Mimosaceae
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Parkia sp
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107
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3.25
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Dillenaceae
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Dillenia reticulata
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290
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1.09
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|
|
3176
|
|
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Table 2
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Productivity of 10 most important gibbon food trees (as identified by Mather,1992).
|
Family
|
Genus/species
|
TOTAL
|
Productivity index
|
|
Guttifferae
|
Garcinia bancana
|
303
|
3.03
|
Moraceae
|
Ficus benjamina
|
106
|
3.69
|
Euphorbiaceae
|
Baccaurea sp
|
360
|
2.67
|
Guttifferae
|
Callophyllum hosei
|
148
|
6.14
|
Myrtaceae
|
Eugenia sp
|
198
|
1.98
|
Annonaceae
|
Polyalthia sp
|
233
|
2.33
|
Moraceae
|
Artocarpus sp
|
238
|
2.91
|
Anacardiaceae
|
Mangifera foetida
|
228
|
2.80
|
Polygalaceae
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Xanthophyllum sp
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241
|
2.41
|
Dillenaceae
|
Dillenia reticulata
|
290
|
1.09
|
|
Table 3
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Gibbon density and percentage of important food trees and dipterocarps.
|
Site
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% of trees in important species list
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Gibbons/km2
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% Dipterocarps
|
Gibbons/km2
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|
Sepilok1
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9.4
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5.5
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NA
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NA
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Kuala Lompat2
|
10.3
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6 (or 8.4)
|
1.0
|
6.0 (or 8.4)
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Mintin Island
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17.1
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5–10 (estimated)
|
1.8
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5.9–19.4 (estimated)
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Pasoh3
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12.1
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8.4
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NA
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NA
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Barito Ulu4
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18.3
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10.5
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42.6
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18.3
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| Data sources: 1 = Davis and Payne 1982, cited in Mather (1992); 2 and 3 = Marsh and Wilson cited in Mather (1992); 4 = Mather (1992). |
Table 4
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Density of gibbons based on fig tree density (adapted from Mather, 1992) with an estimated sustainable group size and number of groups that can be supported on Mintin Island.
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Site
|
Figs/ha
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Group Size
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Groups/km2
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Sepilok, Sabah
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0
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1.5
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2.7
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Tanjung Puting, Kalimantan
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1.0
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2.9
|
3.0
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Siberut, Mentawi Islands
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1.3
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2.1
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3.7
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Sungai Sakam, West Malaysia
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2.0
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2.5
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3.3
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Danum, Sabah
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2.3
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2.1
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3.5
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Mintin Island, Kalimantan
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3.0
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1.5 – 3.5 (estimated)
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2.5 – 4.5 (estimated)
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Pasoh, West Malaysia
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4.0
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2.1
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4.0
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Barito Ulu, Kalimantan
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6.0
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3.6
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2.8
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Kutai, East Kalimantan
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6.6
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3.6
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4.0
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Kuala Lompat, West Malaysia
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8.0
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4.1
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4.0
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Ketambe, North Sumatera
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27.0
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4.3
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4.5
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Table 5
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Summary of gibbon density based on 3 main vegetation characteristics.
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Variable
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Estimated Gibbons/km2
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% of Dipterocarps
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5.9–19.4
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Density of fig trees
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3.75–15.75
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% of trees in 10 important gibbon food genera
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5–10
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