HydroBASINS lev08 watershed · #7080755540
Bassin de Pine Island Bayou
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 : Hardin, Jefferson, Liberty, Orange, Polk
Sub-basin area
1 836,7km²
Upstream area
1 836,7km²
Discharge
31,23m³/s
Mean elev.
28m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- Hardin1177.4 km²64.2% of basin
- Liberty472.9 km²25.8% of basin
- Jefferson171.9 km²9.4% of basin
- Polk12.3 km²0.7% of basin
- Orange0.2 km²0.0% of basin
3 intersecting protected areas
Big Thicket
IUCN VNational Preserve
108.77 km² overlap
Reserve Program
7.86 km² overlap
Marysee Prairie
IUCN VPreserve
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 316 distinct species · 71 445 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Pine Island Bayou : 21 espèces reliées par 81 interactions GloBI sur 3 types (connectance 13.6%, 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°
19,6°C
Annual rain
1 377mm
Moisture idx (CMI)
-0,05
Runoff
539mm/an
PET
1 454mm
AET
1 121mm
Mean slope
0,5°
Water table
18cm
Forest
88%
Crops
7%
Urban
3%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)