Ontologia

HydroBASINS lev08 watershed · #7080560070

Bassin de Glenn-Colusa Canal

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 1 administrative regions : Colusa

Pfafstetter: 77448002

Sub-basin area

322,6km²

Upstream area

322,7km²

Discharge

2,68m³/s

Mean elev.

190m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Elk Creek1412 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Bear Valley

    IUCN Not Assigned

    Conservation Area

    17.56 km² overlap

  • Cache Creek

    IUCN Not Assigned

    Conservation Area

    1.18 km² overlap

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

Species present

960 distinct species · 16 145 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

16 145 obs · 9 cellules
Obs. / cellule
≥ 5 938
5 938–5 937
3 365–5 937
778–3 364
< 778

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 Glenn-Colusa Canal : 24 espèces reliées par 125 interactions GloBI sur 4 types (connectance 17.8%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
125
Connectance
0.178
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°

15,3°C

Annual rain

517mm

Moisture idx (CMI)

-0,64

Runoff

266mm/an

PET

1 437mm

AET

435mm

Mean slope

6,3°

Water table

295cm

Forest

30%

Crops

42%

Urban

0%

Protected

0%

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