Ontologia

HydroBASINS lev08 watershed · #7080700560

Bassin de Four Hole Swamp

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 : Berkeley, Calhoun, Dorchester, Orangeburg

Pfafstetter: 73251042

Sub-basin area

1 530,7km²

Upstream area

1 530,9km²

Discharge

20,39m³/s

Mean elev.

42m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Edisto River574 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

1 841 distinct species · 146 124 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

146 124 obs · 48 cellules
Obs. / cellule
≥ 54 903
2 781–54 902
1 014–2 780
454–1 013
< 454

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

Ecological tissue

Sample of 35 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 Four Hole Swamp : 23 espèces reliées par 75 interactions GloBI sur 3 types (connectance 12.6%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
75
Connectance
0.126
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°

17,8°C

Annual rain

1 223mm

Moisture idx (CMI)

-0,13

Runoff

429mm/an

PET

1 403mm

AET

1 034mm

Mean slope

0,5°

Water table

18cm

Forest

33%

Crops

28%

Urban

1%

Protected

0%

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