Sahel
IUCN IVSylvo-pastoral Reserve and Partial Wildlife Reserve · 1970
18 209 km²
Arrondissement · NER
Téra
Niger
BWhArid, desert, hot(67 %)
Species observed
179
Observations
1 070
Area
15 007,1km²
Ecological tissue
Sample of 19 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).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Téra : 17 espèces reliées par 15 interactions GloBI sur 4 types (connectance 8.8%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
19
Interactions affichées
15
Connectance
0.088
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
179 distinct species · 1 070 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
29,5°C
Annual rain
375mm
Warmest m°
40,7°C
Coldest m°
15,6°C
Elevation: 256 m on average (min 188 m, max 339 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
29,5°C
Annual rain
375mm
Warmest month
40,7°C
Coldest month
15,6°C
Mean alt.
256m
Min
188m
Max
339m
Std. dev.
22m
Köppen-Geiger (dominant)
BWhArid, desert, hot(67 %)Arid
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,3
Org. C
4,2g/kg
Clay
18,9%
Sand
62,2%
Silt
18,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,3
Org. C
5,4g/kg
Clay
16,9%
Sand
63,8%
Silt
19,3%
5–15 cm
pH H₂O
6,3
Org. C
4,1g/kg
Clay
19,0%
Sand
62,1%
Silt
18,9%
15–30 cm
pH H₂O
6,4
Org. C
3,0g/kg
Clay
20,8%
Sand
60,8%
Silt
18,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest1.9%
Crops25.2%
Built-up0.1%
Bare soil13.7%
Other (grassland, water…)59.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology30 basins · 16 lakes · 14 rivers
Hydrology metrics for this exact territory
Stream length here
1 040,8km
Lake surface here
16,45km²
Basins crossed
30
Max stream order
8
Max drainage
626 523km²
Discharge in basins
2 909,0m³/s
Mean precip.
380mm/an
Mean T°
29,0°C
Moisture idx
-0,82
Mean runoff
13mm/an
Mean elev. (basins)
259m
Watersheds crossing here
- Bassin de Gorouolsub-area2 602,6 km²overlap2574.23 km²17%
- Bassin de Koubiasub-area1 572,2 km²overlap1559.58 km²10%
- Bassin de la Sirbasub-area2 321,8 km²overlap1309.90 km²9%
- Bassin de Dargolsub-area1 162,4 km²overlap1151.21 km²8%
- Bassin de Dargolsub-area932,4 km²overlap928.95 km²6%
- Bassin de Tilimsub-area1 309,5 km²overlap794.18 km²5%
- Bassin de Dargolsub-area694,2 km²overlap691.67 km²5%
- Bassin du Nigersub-area1 228 km²overlap647.91 km²4%
- Bassin du Nigersub-area921,1 km²overlap635.04 km²4%
21 more basinssorted by overlap
- Bassin de Gorouolsub-area935,1 km²overlap619.75 km²4%
- Bassin de Dargolsub-area1 684 km²overlap531.72 km²4%
- Basin #63040sub-area519,8 km²overlap517.87 km²3%
- Bassin de Goriasub-area467,6 km²overlap465.85 km²3%
- Bassin du Nigersub-area792,5 km²overlap429.73 km²3%
- Bassin du Nigersub-area412,6 km²overlap411.07 km²3%
- Bassin de Dargolsub-area412,8 km²overlap409.89 km²3%
- Bassin de Bélisub-area575 km²overlap406.17 km²3%
- Bassin de Gorouolsub-area231,2 km²overlap229.97 km²2%
- Bassin du Nigersub-area1 595 km²overlap217.34 km²1%
- Bassin de Dargolsub-area136,1 km²overlap135.64 km²1%
- Bassin du Nigersub-area788,6 km²overlap129.16 km²1%
- Bassin du Nigersub-area179 km²overlap97.08 km²1%
- Basin #27770sub-area1 112,9 km²overlap39.45 km²0%
- Bassin du Nigersub-area48,1 km²overlap26.31 km²0%
- Bassin de Banizoumbousub-area592,1 km²overlap20.42 km²0%
- Bassin du Nigersub-area33,4 km²overlap8.55 km²0%
- Bassin de Babongousub-area375,3 km²overlap8.40 km²0%
- Bassin de Babongousub-area587,5 km²overlap6.05 km²0%
- Bassin de Babongousub-area212 km²overlap2.62 km²0%
- Bassin du Nigersub-area9,2 km²overlap1.34 km²0%
Lakes (16, top by area)
- Réservoir de Téraarea3,5 km²avg depth2.8 m
- Mare d'Inabowarea1,8 km²avg depth1.1 m
- Lake #79094area1,3 km²avg depth1.8 m
- Mare d’Inguiarea1,3 km²avg depth1.2 m
- Mare d'Ossoloarea1,3 km²avg depth1.2 m
- Mare de Namgaarea1,3 km²avg depth1.4 m
- Lake #79068area1,1 km²avg depth1.7 m
- Lac 1397856area1 km²avg depth3.5 m
- Lac 1397185area1 km²avg depth2.2 m
Rivers / streams (14, ord ≥ 4)
- Dargolord 4len here284.69 km88%total323 km
- Gorouolord 6len here207.45 km60%total345 km
- Le Nigerord 8len here152.60 km2%total7108 km
- Tilimord 3len here83.13 km91%total91 km
- La Sirbaord 6len here83.03 km15%total568 km
- Goriaord 3len here57.92 km100%total58 km
- Baouré Kouaréord 4len here50.28 km100%total50 km
- Golgouord 3len here27.20 km100%total27 km
- Béliord 6len here24.63 km7%total333 km
- Zinkargouord 2len here24.25 km100%total24 km
- Homboliord 2len here18.65 km100%total19 km
- Sékoméord 3len here15.24 km100%total15 km
2 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
14,9%
Pesticides
0,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas4
IUCN IV · 2IUCN Ib · 2
Kandadji
IUCN IVNature Reserve · 2017
12 011 km²
Complexe Kokorou-Namga
IUCN IbWetland of International Importance (Ramsar Site) · 2001
668 km²
Hippopotamus Sanctuary
IUCN IbStrict Nature Reserve · 2017
99 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN