HydroBASINS lev08 watershed · #7080043650
Bassin de Mackay 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 2 administrative regions : Glynn, McIntosh
Sub-basin area
373,1km²
Upstream area
373,1km²
Discharge
0,05m³/s
Mean elev.
5m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 310.6 km²83.3% of basin
- 14.8 km²4.0% of basin
21 intersecting protected areas
Conservation Easement
45.26 km² overlap
Marine Protected Area
7.10 km² overlap
Altamaha
IUCN VWildlife Management Area
7.10 km² overlap
Musgrove
IUCN Not AssignedEasement
3.44 km² overlap
National Wildlife Refuge
2.66 km² overlap
Wolf Island
IUCN IVNational Wildlife Refuge
2.66 km² overlap
Marine Protected Area
2.66 km² overlap
Easement
2.46 km² overlap
Marine Protected Area
1.25 km² overlap
12 more protected areassorted by overlap area
Egg Island Bar NA
IUCN VState Natural Area (GADNR)
0.61 km² overlap
Egg Island Bar Natural Area
IUCN IaMarine Protected Area
0.61 km² overlap
Atlantic Coast Conservancy/Pelican Coast Conservancy Conservation Easement E201685A
IUCN Not AssignedConservation Easement
0.24 km² overlap
Bloody Marsh
IUCN VLocal Conservation Area
0.17 km² overlap
Atlantic Coast Conservancy/Pelican Coast Conservancy Conservation Easement E201562A
IUCN Not AssignedConservation Easement
0.16 km² overlap
Atlantic Coast Conservancy/Pelican Coast Conservancy Conservation Easement E201447A
IUCN Not AssignedConservation Easement
0.12 km² overlap
Fort Frederica
IUCN VFee Simple
0.08 km² overlap
Plemmons
IUCN VFee Simple
0.03 km² overlap
Dupree Creek
IUCN VRestrictive Covenant (DOD/DOE)
0.03 km² overlap
Sea Island Hammocks
IUCN VNatural Area
0.02 km² overlap
Natural Area
0.00 km² overlap
Pelican Spit Natural Area
IUCN IaMarine Protected Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 327 distinct species · 500 044 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 Mackay River : 31 espèces reliées par 66 interactions GloBI sur 3 types (connectance 8.0%, filtre Serrano α=0.2). 10 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 291mm
Moisture idx (CMI)
-0,01
Runoff
328mm/an
PET
1 307mm
AET
1 089mm
Mean slope
0,4°
Water table
21cm
Forest
53%
Crops
1%
Urban
14%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)