Ontologia

County · USA

Rappahannock

United States

CfaTemperate, no dry season, hot summer(83 %)

Species observed

2 803

Observations

112 760

Area

687,6km²

Ecological tissue

Sample of 43 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 Rappahannock : 30 espèces reliées par 97 interactions GloBI sur 4 types (connectance 9.8%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
45
Interactions affichées
97
Connectance
0.098
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

2 803 distinct species · 112 760 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

112 760 obs · 18 cellules
Obs. / cellule
≥ 22 817
17 022–22 816
6 833–17 021
4 135–6 832
< 4 135

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

Climate

Mean T°

12,4°C

Annual rain

1 154mm

Warmest m°

29,4°C

Coldest m°

-3,7°C

Elevation: 302 m on average (min 128 m, max 966 m)

Bioclimatic detailsExpert
Annual mean temp.
12,4°C
Annual rain
1 154mm
Warmest month
29,4°C
Coldest month
-3,7°C
Mean alt.
302m
Min
128m
Max
966m
Std. dev.
183m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(83 %)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

50,1g/kg

Clay

27,1%

Sand

29,4%

Silt

43,5%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,3
Org. C
102,8g/kg
Clay
25,5%
Sand
30,3%
Silt
44,1%
5–15 cm
pH H₂O
5,4
Org. C
32,4g/kg
Clay
26,0%
Sand
29,8%
Silt
44,2%
15–30 cm
pH H₂O
5,4
Org. C
15,1g/kg
Clay
29,9%
Sand
28,0%
Silt
42,0%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest72.5%
Crops7.8%
Built-up0.2%
Bare soil0.1%
Other (grassland, water…)19.4%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology3 basins · 0 lakes · 17 rivers

Hydrology metrics for this exact territory

Stream length here

153,2km

Basins crossed

3

Max stream order

3

Max drainage

7 914km²

Discharge in basins

9,4m³/s

Mean precip.

1 053mm/an

Mean T°

12,1°C

Moisture idx

-0,09

Max snow

4%

Mean runoff

419mm/an

Mean elev. (basins)

206m

Watersheds crossing here

Rivers / streams (17, ord ≥ 4)

5 more river segments

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

19,7%

Pesticides

17,1kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas8

IUCN Not Assigned · 5IUCN II · 1IUCN Ib · 1IUCN V · 1

Rap-Vof-4084

IUCN Not Assigned

Conservation Easement · 2015

2 km²

Mad-Vof-4081

IUCN Not Assigned

Conservation Easement · 2015

1 km²

Cul-Vof-4070

IUCN Not Assigned

Conservation Easement · 2015

1 km²

Rap-Vof-3991

IUCN Not Assigned

Conservation Easement · 2015

0 km²

Complete list

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN