Ontologia

HydroBASINS lev08 watershed · #1080013480

Bassin de Mtamvuna 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 : Alfred Nzo, Sisonke, Ugu

Pfafstetter: 12553502

Sub-basin area

1 605,8km²

Upstream area

1 605,8km²

Discharge

18,7m³/s

Mean elev.

791m

Administrative coverage

3 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

3 041 distinct species · 21 078 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

21 078 obs · 37 cellules
Obs. / cellule
≥ 5 745
1 428–5 744
363–1 427
87–362
< 87

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

Ecological tissue

Sample of 31 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 Mtamvuna River : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 25 interactions GloBI sur 3 types (connectance 5.4%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
25
Connectance
0.054
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°

16,6°C

Annual rain

986mm

Moisture idx (CMI)

-0,20

Runoff

388mm/an

PET

1 235mm

AET

836mm

Mean slope

9,3°

Water table

496cm

Forest

80%

Crops

16%

Urban

6%

Protected

5%

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