HydroBASINS lev08 watershed · #7080724640
Bassin de Altamaha 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 : Appling, Jeff Davis, Montgomery, Tattnall, Toombs
Sub-basin area
1 218,4km²
Upstream area
30 903km²
Discharge
354,9m³/s
Mean elev.
57m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oconee River1244 km²
- Bassin de Altamaha River81 km²
5 dept-equivalent regions (GADM L2)
- 442.1 km²36.3% of basin
- 378.0 km²31.0% of basin
- 184.9 km²15.2% of basin
- Montgomery166.0 km²13.6% of basin
- 46.5 km²3.8% of basin
6 intersecting protected areas
Bullard Creek
IUCN VWildlife Management Area
52.07 km² overlap
Moody Forest
IUCN VNatural Area
10.59 km² overlap
Moody
IUCN VForest Preserve
7.45 km² overlap
Reserve Program
2.40 km² overlap
Georgia-Alabama Land Trust Easement #840
IUCN Not AssignedEasement
1.64 km² overlap
Appling County
IUCN VSatellite Center
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
957 distinct species · 14 741 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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 Altamaha River : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 81 interactions GloBI sur 4 types (connectance 8.6%, 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°
18,7°C
Annual rain
1 177mm
Moisture idx (CMI)
-0,21
Runoff
360mm/an
PET
1 482mm
AET
995mm
Mean slope
1,0°
Water table
67cm
Forest
40%
Crops
20%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)