Ontologia

HydroBASINS lev08 watershed · #7080635200

Bassin de Colorado 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 : Clark, Mohave

178% lakePfafstetter: 77233070

Sub-basin area

593,8km²

Upstream area

419 449,7km²

Discharge

585,13m³/s

Mean elev.

625m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Colorado River360 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

558 distinct species · 4 573 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 573 obs · 14 cellules
Obs. / cellule
≥ 1 521
608–1 520
382–607
284–381
< 284

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

Ecological tissue

Sample of 49 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 Colorado River : 34 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 109 interactions GloBI sur 4 types (connectance 8.9%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
50
Interactions affichées
109
Connectance
0.089
Patrimoniales
2
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°

19,6°C

Annual rain

131mm

Moisture idx (CMI)

-0,91

Runoff

10mm/an

PET

1 518mm

AET

110mm

Mean slope

8,9°

Water table

741cm

Forest

2%

Crops

0%

Urban

0%

Protected

45%

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