Ontologia

Division · gmb

Upper River

Gambia

BShArid, steppe, hot(100 %)

Species observed

482

Observations

5 500

Area

2 078,9km²

Ecological tissue

Sample of 20 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 Upper River : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 22 interactions GloBI sur 3 types (connectance 10.5%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
21
Interactions affichées
22
Connectance
0.105
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

482 distinct species · 5 500 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 500 obs · 44 cellules
Obs. / cellule
≥ 3 274
203–3 273
30–202
12–29
< 12

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

29,2°C

Annual rain

806mm

Warmest m°

39,9°C

Coldest m°

19,3°C

Elevation: 30 m on average (min 4 m, max 63 m)

Bioclimatic detailsExpert
Annual mean temp.
29,2°C
Annual rain
806mm
Warmest month
39,9°C
Coldest month
19,3°C
Mean alt.
30m
Min
4m
Max
63m
Std. dev.
15m
Köppen-Geiger (dominant)
BShArid, steppe, hot(100 %)Arid

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

5,9

Org. C

9,6g/kg

Clay

22,8%

Sand

54,6%

Silt

22,6%

Average over 0-30 cm. Per-depth details in expert panel.

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
11,9g/kg
Clay
21,3%
Sand
55,7%
Silt
23,0%
5–15 cm
pH H₂O
5,9
Org. C
9,3g/kg
Clay
21,8%
Sand
55,6%
Silt
22,7%
15–30 cm
pH H₂O
5,8
Org. C
7,6g/kg
Clay
25,2%
Sand
52,6%
Silt
22,3%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest10.7%
Crops30.7%
Built-up0.4%
Bare soil0.8%
Other (grassland, water…)57.4%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology12 basins · 4 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

319,7km

Lake surface here

0,73km²

Basins crossed

12

Max stream order

6

Max drainage

58 906km²

Discharge in basins

477,2m³/s

Mean precip.

817mm/an

Mean T°

27,3°C

Moisture idx

-0,60

Mean runoff

65mm/an

Mean elev. (basins)

36m

Watersheds crossing here

3 more basins

Lakes (4, top by area)

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

1hab/km²

Night light

0,0nW

Built-up

43,9%

Pesticides

19,2kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas2

IUCN VI · 2

Demba Kunda

IUCN VI

Community Protected Area · 2014

0 km²

Badari

IUCN VI

Community Protected Area · 2014

0 km²

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN

Sub-administrations4