Ontologia

HydroBASINS lev08 watershed · #1081162620

Bassin de Tana River

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 : Masinga, Mbeere South, Mwingi West

20% lakePfafstetter: 11720959

Sub-basin area

428,3km²

Upstream area

9 926,3km²

Discharge

97,08m³/s

Mean elev.

981m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Tana River2593 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Mwea

    IUCN VI

    National Reserve

    0.00 km² overlap

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

Species present

514 distinct species · 1 520 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 520 obs · 10 cellules
Obs. / cellule
≥ 615
615–614
213–614
76–212
< 76

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

Ecological tissue

Sample of 30 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 Tana River : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 18 interactions GloBI sur 3 types (connectance 4.1%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
18
Connectance
0.041
Patrimoniales
2
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°

22,0°C

Annual rain

739mm

Moisture idx (CMI)

-0,63

Runoff

192mm/an

PET

1 980mm

AET

623mm

Mean slope

3,6°

Water table

302cm

Forest

0%

Crops

5%

Urban

1%

Protected

0%

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