District · PNG
Middle Ramu
Papua New Guinea
Species observed
1 007
Observations
2 570
Area
7 793,2km²
Ecological tissue
Sample of 12 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Middle Ramu : 11 espèces reliées par 8 interactions GloBI sur 2 types (connectance 12.1%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 007 distinct species · 2 570 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
23,7°C
Annual rain
3 424mm
Warmest m°
27,7°C
Coldest m°
20,0°C
Elevation: 499 m on average (min 16 m, max 2 615 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,5
Org. C
58,1g/kg
Clay
38,6%
Sand
24,0%
Silt
37,4%
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
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology27 basins · 12 lakes · 34 rivers
Hydrology metrics for this exact territory
Stream length here
1 512,9km
Lake surface here
6,52km²
Basins crossed
27
Max stream order
6
Max drainage
80 131km²
Discharge in basins
2 883,5m³/s
Mean precip.
3 377mm/an
Mean T°
24,8°C
Moisture idx
0,50
Mean runoff
1 904mm/an
Mean elev. (basins)
455m
Watersheds crossing here
- Bassin de Guam Riversub-area2 126,4 km²overlap1379.83 km²18%
- Bassin de Keram Riversub-area1 205 km²overlap1160.66 km²15%
- Bassin de Savai Riversub-area645 km²overlap585.85 km²8%
- Bassin de Yuat Riversub-area1 638,6 km²overlap513.21 km²7%
- Bassin de Ramu Riversub-area448,5 km²overlap446.53 km²6%
- Bassin de Keram Riversub-area458,7 km²overlap399.84 km²5%
- Bassin de Ramu Riversub-area362,1 km²overlap360.56 km²5%
- Bassin de Sogeram Riversub-area413,8 km²overlap340.71 km²4%
- Bassin de Clay Riversub-area1 560,4 km²overlap339.92 km²4%
18 more basinssorted by overlap
- Bassin de Ramu Riversub-area365,5 km²overlap336.04 km²4%
- Bassin de Ramu Riversub-area2 267,3 km²overlap311.53 km²4%
- Bassin de Pangam Riversub-area262,4 km²overlap261.19 km²3%
- Bassin de Numuge Riversub-area380,6 km²overlap251.96 km²3%
- Bassin de Kaironk Riversub-area251,6 km²overlap206.44 km²3%
- Bassin de Aunja Riversub-area203,6 km²overlap202.68 km²3%
- Bassin de Ajai Riversub-area187,7 km²overlap175.92 km²2%
- Bassin de Macin Riversub-area679,4 km²overlap155.78 km²2%
- Bassin de Sogeram Riversub-area845,4 km²overlap95.77 km²1%
- Bassin de Ramu Riversub-area284,9 km²overlap89.01 km²1%
- Bassin de Gogol Riversub-area2 085,7 km²overlap43.32 km²1%
- Bassin de Jimi Riversub-area110,7 km²overlap38.89 km²0%
- Bassin de Sepik Riversub-area2 368,9 km²overlap33.74 km²0%
- Bassin de Sogeram Riversub-area74,7 km²overlap32.19 km²0%
- Bassin de Timper Riversub-area393,5 km²overlap21.64 km²0%
- Bassin de Jimi Riversub-area283 km²overlap9.24 km²0%
- Bassin de Sogeram Riversub-area3,6 km²overlap0.38 km²0%
- Bassin de Gai Riversub-area242,1 km²overlap0.36 km²0%
Lakes (12, top by area)
- Lake Varguarea2,3 km²avg depth1.7 m
- Lac 1409333area0,9 km²avg depth4.3 m
- Lac 1409216area0,8 km²avg depth2.2 m
- Lac 1409303area0,5 km²avg depth4.3 m
- Lac 1409184area0,4 km²avg depth3.6 m
- Lac 1409186area0,4 km²avg depth3.5 m
- Lac 1409197area0,4 km²avg depth4.0 m
- Lac 1409193area0,2 km²avg depth3.3 m
- Lac 1409213area0,2 km²avg depth1.8 m
Rivers / streams (34, ord ≥ 4)
- Ramu Riverord 6len here240.06 km23%total1032 km
- Keram Riverord 6len here166.08 km45%total370 km
- Sogeram Riverord 6len here121.68 km44%total278 km
- Guam Riverord 5len here116.35 km85%total137 km
- Ainurum Riverord 4len here109.24 km100%total109 km
- Urom Riverord 3len here75.05 km100%total75 km
- Uburusiki Riverord 4len here56.81 km100%total57 km
- Pangam Riverord 3len here53.44 km100%total54 km
- Yuat Riverord 7len here49.53 km15%total332 km
- Savai Riverord 2len here48.64 km100%total49 km
- Tomul Riverord 4len here40.79 km74%total55 km
- Ajai Riverord 3len here40.03 km100%total40 km
22 more river segmentssorted by Strahler order + length
- Aunja Riverord 3len here38.08 km100%total38 km
- Kaironk Riverord 5len here36.13 km64%total56 km
- Kogera Creekord 3len here34.26 km100%total34 km
- Numuge Riverord 4len here31.53 km58%total55 km
- Clay Riverord 4len here27.36 km23%total121 km
- Macin Riverord 4len here26.52 km24%total111 km
- Anungum Creekord 2len here26.45 km100%total27 km
- Omosa Riverord 3len here25.54 km100%total26 km
- Kuyu Streamord 2len here23.68 km100%total24 km
- Jarm Riverord 3len here19.74 km100%total20 km
- Numugen Riverord 3len here18.67 km100%total19 km
- Ioka Creekord 6len here17.20 km100%total17 km
- Gogol Riverord 5len here16.00 km8%total192 km
- Munanga Riverord 3len here13.86 km21%total65 km
- Kolailo Riverord 2len here13.10 km100%total13 km
- Numgal Riverord 3len here10.81 km100%total11 km
- Jagol Riverord 6len here9.43 km50%total19 km
- Jimi Riverord 5len here2.58 km1%total207 km
- Binat Creekord 4len here1.63 km9%total18 km
- Kunar Creekord 2len here1.47 km23%total6 km
- Wamin Riverord 1len here0.69 km100%total1 km
- Gai Riverord 5len here0.50 km0%total139 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Built-up
2,1%
Pesticides
0,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)