HydroBASINS lev08 watershed · #7080706690
Bassin de Big Fossil 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 1 administrative regions : Tarrant
Sub-basin area
474,5km²
Upstream area
7 235,5km²
Discharge
26,54m³/s
Mean elev.
202m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
1 dept-equivalent regions (GADM L2)
- 474.2 km²100.0% of basin
2 intersecting protected areas
Tandy Hills
IUCN VNature Area
0.33 km² overlap
Stratford
IUCN VNature Area
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 421 distinct species · 244 591 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 48 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Big Fossil Creek : 40 espèces reliées par 121 interactions GloBI sur 5 types (connectance 10.7%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
18,3°C
Annual rain
852mm
Moisture idx (CMI)
-0,39
Runoff
161mm/an
PET
1 400mm
AET
722mm
Mean slope
1,0°
Water table
133cm
Forest
16%
Crops
7%
Urban
89%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)