HydroBASINS lev08 watershed · #7080761410
Bassin de Bayou Teche
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 : Avoyelles, Evangeline, Iberia, Lafayette, Saint Landry +2
Sub-basin area
2 204,7km²
Upstream area
4 052,6km²
Discharge
74,77m³/s
Mean elev.
12m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Bayou Boeuf930 km²
- Bassin de Bayou Cocodrie918 km²
7 dept-equivalent regions (GADM L2)
- 761.6 km²34.6% of basin
- 501.6 km²22.8% of basin
- 332.7 km²15.1% of basin
- 237.7 km²10.8% of basin
- Lafayette226.0 km²10.3% of basin
- 88.4 km²4.0% of basin
- 54.3 km²2.5% of basin
14 intersecting protected areas
Cypress Island
IUCN VPrivate Conservation Land
35.88 km² overlap
Bayou Teche
IUCN IVNational Wildlife Refuge
16.70 km² overlap
Reserve Program
9.24 km² overlap
Watershed Protection
2.75 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), St. Landry, LA
IUCN VConservation Easement
1.95 km² overlap
Conservation Easement
1.44 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), St. Mary, LA
IUCN Not AssignedConservation Easement
1.11 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Avoyelles, LA
IUCN VConservation Easement
0.45 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Evangeline, LA
IUCN Not AssignedConservation Easement
0.41 km² overlap
5 more protected areassorted by overlap area
Private Conservation Land
0.28 km² overlap
Reserve Program
0.19 km² overlap
Cypress Island Fee
IUCN VPrivate Conservation Land
0.10 km² overlap
National Historical Park
0.03 km² overlap
Marine Protected Area
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 273 distinct species · 423 078 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Teche : 27 espèces reliées par 86 interactions GloBI sur 3 types (connectance 10.5%, filtre Serrano α=0.2). 14 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°
19,5°C
Annual rain
1 518mm
Moisture idx (CMI)
0,08
Runoff
747mm/an
PET
1 401mm
AET
1 181mm
Mean slope
0,4°
Water table
12cm
Forest
12%
Crops
38%
Urban
8%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)