Ontologia

HydroBASINS lev08 watershed · #1081653040

Bassin de Great Fish 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 2 administrative regions : Cacadu, Chris Hani

Pfafstetter: 12556506

Sub-basin area

185km²

Upstream area

185,2km²

Discharge

0,1m³/s

Mean elev.

1 147m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Great Fish River395 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

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

Species present

217 distinct species · 741 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

741 obs · 5 cellules
Obs. / cellule
≥ 357
357–356
335–356
37–334
< 37

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

Ecological tissue

Sample of 29 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 Great Fish River : 26 espèces reliées par 21 interactions GloBI sur 4 types (connectance 4.8%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
21
Connectance
0.048
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°

14,9°C

Annual rain

510mm

Moisture idx (CMI)

-0,63

Runoff

18mm/an

PET

1 393mm

AET

433mm

Mean slope

12,7°

Water table

992cm

Forest

17%

Crops

9%

Urban

0%

Protected

0%

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