The Nature Conservancy
IUCN VEasement · 1985
213 km²
Independent City · USA
Fredericksburg
United States
CfaTemperate, no dry season, hot summer(100 %)
Species observed
1 507
Observations
77 311
Area
27,6km²
Ecological tissue
Sample of 39 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 Fredericksburg : 28 espèces reliées par 99 interactions GloBI sur 4 types (connectance 12.7%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
40
Interactions affichées
99
Connectance
0.127
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
1 507 distinct species · 77 311 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
14,4°C
Annual rain
1 092mm
Warmest m°
31,0°C
Coldest m°
-1,3°C
Elevation: 46 m on average (min 15 m, max 83 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
14,4°C
Annual rain
1 092mm
Warmest month
31,0°C
Coldest month
-1,3°C
Mean alt.
46m
Min
15m
Max
83m
Std. dev.
20m
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
5,4
Org. C
36,8g/kg
Clay
23,4%
Sand
35,3%
Silt
41,4%
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
5,3
Org. C
76,8g/kg
Clay
21,2%
Sand
36,9%
Silt
41,9%
5–15 cm
pH H₂O
5,4
Org. C
24,4g/kg
Clay
21,4%
Sand
36,4%
Silt
42,2%
15–30 cm
pH H₂O
5,5
Org. C
9,3g/kg
Clay
27,4%
Sand
32,6%
Silt
40,0%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest32.5%
Crops1.7%
Built-up8.1%
Bare soil0.7%
Other (grassland, water…)57.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 5 rivers
Hydrology metrics for this exact territory
Stream length here
10,3km
Basins crossed
1
Max stream order
5
Max drainage
4 270km²
Discharge in basins
7,4m³/s
Mean precip.
1 055mm/an
Mean T°
13,2°C
Moisture idx
-0,11
Max snow
2%
Mean runoff
434mm/an
Mean elev. (basins)
69m
Watersheds crossing here
Rivers / streams (5, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
6hab/km²
Night light
27,1nW
Built-up
810,6%
Pesticides
10,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN V · 2🌊 Marine · 1
Upper Rappahannock
IUCN VEasement · 2007
14 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN