Ontologia

HydroBASINS lev08 watershed · #1080849360

Bassin de Mada

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 2 administrative regions : Jema'a, Sanga

Pfafstetter: 14221450

Sub-basin area

197,2km²

Upstream area

2 512km²

Discharge

38,86m³/s

Mean elev.

513m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Mada1611 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

5 intersecting protected areas

  • Sanga River

    IUCN Not Reported

    Forest Reserve

    69.37 km² overlap

  • Nungu

    IUCN Not Reported

    Forest Reserve

    11.31 km² overlap

  • Ninjam

    IUCN Not Reported

    Forest Reserve

    7.59 km² overlap

  • Gerti Kloof

    IUCN Not Reported

    Forest Reserve

    4.30 km² overlap

  • Danguwa

    IUCN Not Reported

    Forest Reserve

    3.76 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

52 distinct species · 103 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

103 obs · 1 cellules
Obs. / cellule
≥ 103
103–102
103–102
103–102
< 103

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

Ecological tissue

Sample of 4 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 Bassin de Mada : 4 espèces reliées par 2 interactions GloBI sur 1 type (connectance 33.3%, filtre Serrano α=0.2).

Espèces affichées
4
Interactions affichées
2
Connectance
0.333
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Hydroclimate (BasinATLAS lev08)

Mean T°

25,7°C

Annual rain

1 519mm

Moisture idx (CMI)

-0,15

Runoff

354mm/an

PET

1 795mm

AET

986mm

Mean slope

2,2°

Water table

160cm

Forest

21%

Crops

18%

Urban

4%

Protected

49%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)