Ontologia

HydroBASINS lev08 watershed · #7080537640

Bassin de Big Blue 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 : Gage, Lancaster

Pfafstetter: 74292257

Sub-basin area

885,3km²

Upstream area

10 459,3km²

Discharge

50,2m³/s

Mean elev.

418m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Big Blue River58 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

785 distinct species · 16 426 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

16 426 obs · 23 cellules
Obs. / cellule
≥ 4 377
2 211–4 376
466–2 210
131–465
< 131

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

Ecological tissue

Sample of 32 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 Big Blue River : 23 espèces reliées par 74 interactions GloBI sur 3 types (connectance 14.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
74
Connectance
0.149
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°

10,8°C

Annual rain

789mm

Moisture idx (CMI)

-0,30

Runoff

177mm/an

PET

1 128mm

AET

670mm

Mean slope

1,0°

Water table

114cm

Forest

1%

Crops

79%

Urban

2%

Protected

0%

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