HydroBASINS lev08 watershed · #7080046730
Bassin de Graveline 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 1 administrative regions : Jackson
Sub-basin area
87,8km²
Upstream area
87,8km²
Discharge
0,41m³/s
Mean elev.
5m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- Jackson72.5 km²82.6% of basin
12 intersecting protected areas
Marine Protected Area
24.34 km² overlap
Gulf Islands
IUCN VNational Seashore
23.63 km² overlap
Gulf Islands
IUCN IbWilderness Area
11.81 km² overlap
Marine Protected Area
8.92 km² overlap
Graveline Bay
IUCN VCoastal Reserve
7.48 km² overlap
Marine Protected Area
5.85 km² overlap
Mississippi Sandhill Crane
IUCN IVNational Wildlife Refuge
2.39 km² overlap
Marine Protected Area
2.38 km² overlap
Pascagoula River
IUCN VCoastal Reserve
0.83 km² overlap
3 more protected areassorted by overlap area
Bellefontaine Point
IUCN VCoastal Reserve
0.64 km² overlap
Marine Protected Area
0.59 km² overlap
State Park
0.35 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 640 distinct species · 64 707 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Graveline Bayou : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 84 interactions GloBI sur 3 types (connectance 10.8%, filtre Serrano α=0.2). 15 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 598mm
Moisture idx (CMI)
0,19
Runoff
788mm/an
PET
1 302mm
AET
1 184mm
Mean slope
0,3°
Water table
14cm
Forest
87%
Crops
2%
Urban
13%
Protected
52%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)