Great Dismal Swamp
IUCN IVNational Wildlife Refuge
461 km²
County · USA
Gates
United States
CfaTemperate, no dry season, hot summer(100 %)
Species observed
1 766
Observations
96 311
Area
899,2km²
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 Gates : 23 espèces reliées par 73 interactions GloBI sur 4 types (connectance 11.6%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
36
Interactions affichées
73
Connectance
0.116
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 766 distinct species · 96 311 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
15,8°C
Annual rain
1 276mm
Warmest m°
30,7°C
Coldest m°
1,4°C
Elevation: 9 m on average (min -2 m, max 22 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
15,8°C
Annual rain
1 276mm
Warmest month
30,7°C
Coldest month
1,4°C
Mean alt.
9m
Min
-2m
Max
22m
Std. dev.
5m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
4,7
Org. C
42,9g/kg
Clay
20,5%
Sand
45,9%
Silt
33,5%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
4,6
Org. C
81,0g/kg
Clay
19,2%
Sand
46,6%
Silt
34,1%
5–15 cm
pH H₂O
4,7
Org. C
32,4g/kg
Clay
19,6%
Sand
46,6%
Silt
33,8%
15–30 cm
pH H₂O
4,8
Org. C
15,3g/kg
Clay
22,8%
Sand
44,6%
Silt
32,6%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest66.7%
Crops13.0%
Built-up0.3%
Bare soil0.1%
Other (grassland, water…)19.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology12 basins · 0 lakes · 21 rivers
Hydrology metrics for this exact territory
Stream length here
163,3km
Basins crossed
12
Max stream order
5
Max drainage
11 996km²
Discharge in basins
243,4m³/s
Mean precip.
1 209mm/an
Mean T°
15,1°C
Moisture idx
-0,00
Max snow
2%
Mean runoff
481mm/an
Mean elev. (basins)
17m
Watersheds crossing here
- Bassin de Bennetts Creeksub-area488,2 km²overlap428.75 km²48%
- Bassin de Chowan Riversub-area278,3 km²overlap221.07 km²25%
- Bassin de Chowan Riversub-area110,7 km²overlap79.97 km²9%
- Bassin de Perquimans Riversub-area365,7 km²overlap52.94 km²6%
- Bassin de Pasquotank Riversub-area504,3 km²overlap48.77 km²5%
- Bassin de Blackwater Riversub-area2 173,9 km²overlap38.94 km²4%
- Bassin de Northwest Riversub-area1 031,5 km²overlap13.90 km²2%
- Bassin de Goose Creeksub-area35,3 km²overlap10.64 km²1%
- Bassin de Rockyhock Creeksub-area595,9 km²overlap3.66 km²0%
Rivers / streams (21, ord ≥ 4)
- Chowan Riverord 5len here40.36 km73%total55 km
- Bennetts Creekord 4len here37.23 km100%total37 km
- Trotman Creekord 3len here15.93 km100%total16 km
- Cole Creekord 3len here9.38 km100%total9 km
- Jady Branchord 1len here9.19 km100%total9 km
- Flat Branchord 4len here6.02 km76%total8 km
- Weyerhaeuser Ditchord 1len here5.60 km53%total11 km
- Jernigan Branchord 2len here5.50 km100%total5 km
- Hackley Swampord 1len here5.40 km100%total5 km
- Goose Creekord 5len here5.24 km100%total5 km
- Buckhorn Creekord 1len here4.70 km26%total18 km
- Raynor Swampord 1len here4.53 km100%total5 km
9 more river segmentssorted by Strahler order + length
- Beaverdam Creekord 1len here3.84 km78%total5 km
- Buckland Mill Branchord 1len here2.81 km100%total3 km
- Pasquotank Riverord 3len here2.69 km4%total61 km
- Somerton Creekord 2len here1.49 km18%total8 km
- Duke Swampord 3len here1.19 km100%total1 km
- Blackwater Riverord 4len here0.72 km1%total110 km
- Deep Swamp Branchord 1len here0.59 km15%total4 km
- Mill Swampord 3len here0.51 km1%total45 km
- Wiccacon Riverord 3len here0.36 km3%total14 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,4nW
Built-up
26,0%
Pesticides
27,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas5
IUCN V · 3IUCN IV · 1IUCN Not Assigned · 1🌊 Marine · 1
Chowan Swamp
IUCN VState Natural Area
23 km²
South Quay Sandhills
IUCN VState Natural Area Preserve · 2009
2 km²
Duke Swamp
IUCN Not AssignedConservation Easement · 2007
0 km²
South Quay Sandhills
IUCN VState Natural Area Preserve · 2013
0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN