Ontologia

HydroBASINS lev08 watershed · #1081221230

Bassin de Rau

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 3 administrative regions : Moshi Rural, Moshi Urban, Rombo

Pfafstetter: 11734802

Sub-basin area

504,1km²

Upstream area

504,1km²

Discharge

5,12m³/s

Mean elev.

1 704m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ruvu131 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

2 419 distinct species · 24 484 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

24 484 obs · 15 cellules
Obs. / cellule
≥ 8 091
6 365–8 090
1 242–6 364
624–1 241
< 624

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

Ecological tissue

Sample of 24 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 Rau : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 17 interactions GloBI sur 4 types (connectance 6.2%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
17
Connectance
0.062
Patrimoniales
1
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°

17,8°C

Annual rain

1 185mm

Moisture idx (CMI)

-0,17

Runoff

283mm/an

PET

1 487mm

AET

827mm

Mean slope

8,0°

Water table

157cm

Forest

57%

Crops

5%

Urban

49%

Protected

40%

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