Ontologia

HydroBASINS lev08 watershed · #7080057150

Bassin de Walbran Creek

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 : Capital, Cowichan Valley

Coastal basinPfafstetter: 78330990

Sub-basin area

338,8km²

Upstream area

338,8km²

Discharge

7,83m³/s

Mean elev.

405m

Administrative coverage

2 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

890 distinct species · 9 813 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 813 obs · 10 cellules
Obs. / cellule
≥ 4 037
4 037–4 036
886–4 036
497–885
< 497

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

Ecological tissue

Sample of 45 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 Walbran Creek : 36 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 78 interactions GloBI sur 6 types (connectance 7.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
45
Interactions affichées
78
Connectance
0.079
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°

7,8°C

Annual rain

2 330mm

Moisture idx (CMI)

0,71

Runoff

2 348mm/an

PET

666mm

AET

581mm

Mean slope

15,7°

Water table

666cm

Forest

98%

Crops

0%

Urban

0%

Protected

60%

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