HydroBASINS lev08 watershed · #7080627220
Bassin de Little Black 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 5 administrative regions : Butler, Carter, Clay, Randolph, Ripley
Sub-basin area
1 056,6km²
Upstream area
1 056,6km²
Discharge
15,7m³/s
Mean elev.
140m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- Ripley649.3 km²61.4% of basin
- Butler152.4 km²14.4% of basin
- ClayArkansas · United States147.5 km²14.0% of basin
- Carter106.7 km²10.1% of basin
- RandolphArkansas · United States1.0 km²0.1% of basin
17 intersecting protected areas
Little Black
IUCN VConservation Area
11.35 km² overlap
Mudpuppy
IUCN VConservation Area
4.15 km² overlap
Sand Ponds Fee
IUCN VPond
1.90 km² overlap
Corkwood
IUCN VConservation Area
1.56 km² overlap
Spiderlily
IUCN VNatural Area
1.46 km² overlap
Sand Pond
IUCN VConservation Area
0.96 km² overlap
Hemenway
IUCN VConservation Area
0.70 km² overlap
Stateline Sand Ponds
IUCN VNatural Area
0.58 km² overlap
Overcup Fen
IUCN VNatural Area
0.53 km² overlap
8 more protected areassorted by overlap area
Preserve
0.33 km² overlap
National Wildlife Refuge
0.26 km² overlap
Sand Ponds
IUCN VNatural Area
0.25 km² overlap
Reserve Program
0.22 km² overlap
Reserve Program
0.15 km² overlap
Greenville Ford
IUCN VAccess
0.02 km² overlap
Doniphan Towersite
IUCN VState Conservation Area or Park
0.01 km² overlap
Ringo Ford
IUCN VAccess
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 229 distinct species · 21 928 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Little Black River : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 83 interactions GloBI sur 4 types (connectance 13.9%, filtre Serrano α=0.2). 11 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°
13,9°C
Annual rain
1 201mm
Moisture idx (CMI)
-0,06
Runoff
470mm/an
PET
1 279mm
AET
934mm
Mean slope
1,6°
Water table
89cm
Forest
63%
Crops
33%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)