HydroBASINS lev08 watershed · #7080665490
Bassin de Clear Fork
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 : Polk, Scott
Sub-basin area
293,4km²
Upstream area
293,5km²
Discharge
3,35m³/s
Mean elev.
356m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- ScottArkansas · United States263.1 km²89.7% of basin
- PolkArkansas · United States30.2 km²10.3% of basin
1 intersecting protected areas
Black Fork Mountain
IUCN IbWilderness
1.30 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
667 distinct species · 6 630 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 47 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 Clear Fork : 35 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 98 interactions GloBI sur 4 types (connectance 9.1%, filtre Serrano α=0.2). 12 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°
15,2°C
Annual rain
1 223mm
Moisture idx (CMI)
-0,08
Runoff
360mm/an
PET
1 331mm
AET
1 014mm
Mean slope
5,3°
Water table
293cm
Forest
95%
Crops
4%
Urban
0%
Protected
81%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)