Siwi-Utame
IUCN Not ReportedWildlife Management Area · 1977
121 km²
District · PNG
Imbonggu
Papua New Guinea
CfbTemperate, no dry season, warm summer(89 %)
Species observed
1 242
Observations
3 622
Area
1 284,3km²
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Species present
1 242 distinct species · 3 622 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
15,2°C
Annual rain
4 111mm
Warmest m°
19,8°C
Coldest m°
10,9°C
Elevation: 2 165 m on average (min 1 007 m, max 3 967 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
15,2°C
Annual rain
4 111mm
Warmest month
19,8°C
Coldest month
10,9°C
Mean alt.
2 165m
Min
1 007m
Max
3 967m
Std. dev.
489m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(89 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,3
Org. C
76,3g/kg
Clay
32,7%
Sand
33,5%
Silt
33,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,3
Org. C
109,4g/kg
Clay
32,0%
Sand
33,9%
Silt
34,0%
5–15 cm
pH H₂O
5,3
Org. C
71,7g/kg
Clay
32,5%
Sand
33,6%
Silt
33,9%
15–30 cm
pH H₂O
5,4
Org. C
47,9g/kg
Clay
33,6%
Sand
33,0%
Silt
33,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest66.5%
Crops2.4%
Built-up0.1%
Bare soil0.5%
Other (grassland, water…)30.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology9 basins · 2 lakes · 15 rivers
Hydrology metrics for this exact territory
Stream length here
220,8km
Lake surface here
0,46km²
Basins crossed
9
Max stream order
6
Max drainage
4 465km²
Discharge in basins
254,2m³/s
Mean precip.
3 041mm/an
Mean T°
15,7°C
Moisture idx
0,55
Mean runoff
2 011mm/an
Mean elev. (basins)
2 148m
Watersheds crossing here
- Bassin de Mendi Riversub-area1 560,6 km²overlap421.76 km²33%
- Bassin de Kaugl Riversub-area911,9 km²overlap292.49 km²23%
- Bassin de Iaro Riversub-area1 372,9 km²overlap250.82 km²20%
- Bassin de Kaugl Riversub-area380,6 km²overlap205.71 km²16%
- Bassin de Laii Riversub-area549,5 km²overlap97.92 km²8%
- Bassin de Nembi Riversub-area324,6 km²overlap12.04 km²1%
- Bassin de Erave Riversub-area1 117,6 km²overlap2.90 km²0%
- Bassin de Anggura Riversub-area0,9 km²overlap0.57 km²0%
- Bassin de Kaugl Riversub-area447,7 km²overlap0.12 km²0%
Lakes (2, top by area)
Rivers / streams (15, ord ≥ 4)
- Iaro Riverord 4len here52.24 km19%total269 km
- Kaugl Riverord 5len here40.28 km17%total240 km
- Anga Riverord 3len here36.08 km79%total46 km
- Anggura Riverord 5len here22.41 km60%total38 km
- Lai Riverord 5len here15.87 km21%total76 km
- Agula Riverord 2len here12.96 km52%total25 km
- Biano Riverord 4len here11.95 km100%total12 km
- Mendi Riverord 4len here10.81 km12%total91 km
- Ankura Riverord 4len here8.43 km27%total31 km
- Epipa Riverord 2len here5.05 km59%total9 km
- Kondea RIverord 1len here2.50 km100%total2 km
- Erave Riverord 6len here1.36 km1%total209 km
3 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,0nW
Built-up
9,8%
Pesticides
0,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN Not Reported · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN