Ontologia

County · USA

Bryan

United States

CfaTemperate, no dry season, hot summer(100 %)

Species observed

1 881

Observations

84 637

Area

1 159,2km²

Ecological tissue

Sample of 42 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 Bryan : 31 espèces reliées par 75 interactions GloBI sur 4 types (connectance 8.3%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
75
Connectance
0.083
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

1 881 distinct species · 84 637 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

84 637 obs · 33 cellules
Obs. / cellule
≥ 27 217
7 961–27 216
1 442–7 960
391–1 441
< 391

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

Climate

Mean T°

18,9°C

Annual rain

1 252mm

Warmest m°

32,4°C

Coldest m°

5,7°C

Elevation: 13 m on average (min -4 m, max 42 m)

Bioclimatic detailsExpert
Annual mean temp.
18,9°C
Annual rain
1 252mm
Warmest month
32,4°C
Coldest month
5,7°C
Mean alt.
13m
Min
-4m
Max
42m
Std. dev.
10m
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

4,8

Org. C

34,6g/kg

Clay

19,4%

Sand

55,4%

Silt

25,2%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,8
Org. C
64,2g/kg
Clay
19,0%
Sand
55,7%
Silt
25,2%
5–15 cm
pH H₂O
4,8
Org. C
23,9g/kg
Clay
18,8%
Sand
56,0%
Silt
25,3%
15–30 cm
pH H₂O
4,9
Org. C
15,5g/kg
Clay
20,4%
Sand
54,6%
Silt
25,0%

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

Land cover

Forest68.0%
Crops1.3%
Built-up0.5%
Bare soil0.3%
Other (grassland, water…)29.9%

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

Hydrology8 basins · 2 lakes · 5 rivers

Hydrology metrics for this exact territory

Stream length here

125,3km

Lake surface here

0,17km²

Basins crossed

8

Max stream order

5

Max drainage

11 488km²

Discharge in basins

142,3m³/s

Mean precip.

1 227mm/an

Mean T°

18,9°C

Moisture idx

-0,13

Max snow

2%

Mean runoff

368mm/an

Mean elev. (basins)

34m

Watersheds crossing here

Lakes (2, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

1,1nW

Built-up

49,6%

Pesticides

13,1kg/km²

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

Protected areas10

IUCN V · 4IUCN Not Assigned · 4IUCN III · 1IUCN IV · 1🌊 Marine · 4

Warnell

IUCN Not Assigned

Easement

4 km²

Complete list

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