Ontologia

HydroBASINS lev08 watershed · #1081657240

Bassin de Trakarivier

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 : Cacadu, Central Karoo, Eden

Pfafstetter: 12580904

Sub-basin area

351,4km²

Upstream area

351,4km²

Discharge

0,39m³/s

Mean elev.

908m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Trakarivier60 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

417 distinct species · 3 923 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 923 obs · 12 cellules
Obs. / cellule
≥ 2 553
565–2 552
133–564
22–132
< 22

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

Ecological tissue

Sample of 41 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 Trakarivier : 36 espèces reliées par 44 interactions GloBI sur 4 types (connectance 4.9%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
44
Connectance
0.049
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°

15,0°C

Annual rain

465mm

Moisture idx (CMI)

-0,65

Runoff

36mm/an

PET

1 314mm

AET

397mm

Mean slope

7,0°

Water table

563cm

Forest

0%

Crops

6%

Urban

0%

Protected

1%

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