HydroBASINS lev08 watershed · #7080725690
Bassin de Bayou Pierre
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 7 administrative regions : Bossier, Caddo, De Soto, Natchitoches, Panola +2
Sub-basin area
2 756,7km²
Upstream area
2 756,7km²
Discharge
36,15m³/s
Mean elev.
68m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- 1164.4 km²42.3% of basin
- 702.3 km²25.5% of basin
- 592.7 km²21.5% of basin
- 157.1 km²5.7% of basin
- 137.8 km²5.0% of basin
- Panola0.6 km²0.0% of basin
- 0.0 km²0.0% of basin
9 intersecting protected areas
Red River
IUCN IVNational Wildlife Refuge
21.18 km² overlap
Reserve Program
7.55 km² overlap
Reserve Program
3.46 km² overlap
Reserve Program
1.37 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Natchitoches, LA
IUCN VConservation Easement
0.62 km² overlap
Reserve Program
0.30 km² overlap
Conservation Easement
0.18 km² overlap
Reserve Program
0.13 km² overlap
Red River
IUCN VNational Wildlife Refuge
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 860 distinct species · 131 792 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Bayou Pierre : 17 espèces reliées par 72 interactions GloBI sur 4 types (connectance 16.6%, filtre Serrano α=0.2). 13 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°
18,1°C
Annual rain
1 270mm
Moisture idx (CMI)
-0,11
Runoff
413mm/an
PET
1 434mm
AET
1 033mm
Mean slope
1,1°
Water table
61cm
Forest
72%
Crops
16%
Urban
5%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)