Ontologia

HydroBASINS lev08 watershed · #7080723420

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 4 administrative regions : Jeff Davis, Montgomery, Telfair, Wheeler

Pfafstetter: 73254500

Sub-basin area

80,5km²

Upstream area

15 814,5km²

Discharge

187,53m³/s

Mean elev.

49m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Altamaha River1218 km²

▲ Receives from 2 basins

4 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Bullard Creek

    IUCN V

    Wildlife Management Area

    5.07 km² overlap

  • 2012017

    IUCN V

    Conservation Easement

    1.35 km² overlap

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

Species present

310 distinct species · 1 737 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 737 obs · 3 cellules
Obs. / cellule
≥ 1 269
1 269–1 268
1 269–1 268
293–1 268
< 293

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

Ecological tissue

Sample of 53 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 : 40 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 135 interactions GloBI sur 4 types (connectance 9.8%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
53
Interactions affichées
135
Connectance
0.098
Patrimoniales
1
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°

18,5°C

Annual rain

1 156mm

Moisture idx (CMI)

-0,22

Runoff

342mm/an

PET

1 482mm

AET

977mm

Mean slope

0,9°

Water table

74cm

Forest

91%

Crops

6%

Urban

0%

Protected

7%

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