Ontologia

HydroBASINS lev08 watershed · #7080733510

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 3 administrative regions : Brantley, Glynn, Wayne

Pfafstetter: 73254102

Sub-basin area

306,1km²

Upstream area

306,1km²

Discharge

3,3m³/s

Mean elev.

15m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Altamaha River399 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

4 intersecting protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

772 distinct species · 51 859 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

51 859 obs · 10 cellules
Obs. / cellule
≥ 29 465
29 465–29 464
3 205–29 464
410–3 204
< 410

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 31 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Altamaha River : 18 espèces reliées par 64 interactions GloBI sur 3 types (connectance 12.9%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
64
Connectance
0.129
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

19,3°C

Annual rain

1 296mm

Moisture idx (CMI)

-0,09

Runoff

340mm/an

PET

1 419mm

AET

1 096mm

Mean slope

0,6°

Water table

29cm

Forest

100%

Crops

2%

Urban

0%

Protected

27%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)