Ontologia

HydroBASINS lev08 watershed · #7080675410

Bassin de Bill Williams 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 3 administrative regions : La Paz, Mohave, San Bernardino

21% lakePfafstetter: 77232010

Sub-basin area

188,4km²

Upstream area

13 947,6km²

Discharge

11m³/s

Mean elev.

343m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Colorado River1849 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

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

Species present

873 distinct species · 179 288 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

179 288 obs · 6 cellules
Obs. / cellule
≥ 114 350
114 350–114 349
28 633–114 349
24 811–28 632
< 24 811

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

Ecological tissue

Sample of 33 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 Bill Williams River : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 54 interactions GloBI sur 4 types (connectance 9.6%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
54
Connectance
0.096
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°

21,5°C

Annual rain

162mm

Moisture idx (CMI)

-0,91

Runoff

17mm/an

PET

1 723mm

AET

135mm

Mean slope

8,0°

Water table

848cm

Forest

4%

Crops

1%

Urban

0%

Protected

8%

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