Ontologia

HydroBASINS lev08 watershed · #1081659140

Bassin de Brandrivier

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 : Eden, Overberg

Pfafstetter: 12580222

Sub-basin area

407,7km²

Upstream area

407,7km²

Discharge

0,36m³/s

Mean elev.

486m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Touwsrivier1 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

1 526 distinct species · 8 488 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 488 obs · 12 cellules
Obs. / cellule
≥ 4 045
1 626–4 044
633–1 625
368–632
< 368

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

Ecological tissue

Sample of 36 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 Brandrivier : 28 espèces reliées par 33 interactions GloBI sur 5 types (connectance 5.2%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
33
Connectance
0.052
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°

15,8°C

Annual rain

400mm

Moisture idx (CMI)

-0,71

Runoff

29mm/an

PET

1 384mm

AET

340mm

Mean slope

7,2°

Water table

890cm

Forest

3%

Crops

10%

Urban

0%

Protected

13%

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