County · USA
Nolan
United States
Species observed
1 011
Observations
23 051
Area
2 385,1km²
Ecological tissue
Sample of 38 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).
Indicateurs du tissu écologique
Tissu écologique de Nolan : 29 espèces reliées par 95 interactions GloBI sur 4 types (connectance 13.5%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 011 distinct species · 23 051 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
17,5°C
Annual rain
608mm
Warmest m°
33,2°C
Coldest m°
2,3°C
Elevation: 717 m on average (min 579 m, max 788 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
7,5
Org. C
19,1g/kg
Clay
33,5%
Sand
28,7%
Silt
37,8%
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
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology9 basins · 2 lakes · 20 rivers
Hydrology metrics for this exact territory
Stream length here
164,6km
Lake surface here
1,79km²
Basins crossed
9
Max stream order
4
Max drainage
37 770km²
Discharge in basins
2,3m³/s
Mean precip.
607mm/an
Mean T°
17,4°C
Moisture idx
-0,59
Mean runoff
20mm/an
Mean elev. (basins)
670m
Watersheds crossing here
- Bassin de Sweetwater Creeksub-area1 066,4 km²overlap847.66 km²36%
- Bassin de Colorado Riversub-area875,2 km²overlap501.40 km²21%
- Bassin de Big Silver Creeksub-area364 km²overlap224.68 km²9%
- Bassin de Clear Fork Brazos Riversub-area1 898,5 km²overlap192.42 km²8%
- Bassin de South Fork Champion Creeksub-area776 km²overlap186.46 km²8%
- Bassin de Valley Creeksub-area608,9 km²overlap167.78 km²7%
- Bassin de Colorado Riversub-area2 134,4 km²overlap128.44 km²5%
- Bassin de Clear Fork Brazos Riversub-area1 515 km²overlap120.68 km²5%
- Bassin de Elm Creeksub-area1 237,7 km²overlap15.41 km²1%
Lakes (2, top by area)
Rivers / streams (20, ord ≥ 4)
- Cottonwood Creekord 3len here52.74 km30%total174 km
- Bitter Creekord 3len here25.24 km28%total90 km
- Sweetwater Creekord 4len here20.99 km30%total71 km
- Rough Creekord 3len here12.54 km18%total70 km
- Holder Creekord 1len here11.56 km100%total12 km
- Fish Creekord 2len here5.90 km43%total14 km
- Oaties Holloword 2len here4.74 km100%total5 km
- Santa Fe Creekord 1len here4.29 km100%total4 km
- Salt Branchord 2len here4.22 km29%total15 km
- Kildoogan Creekord 2len here4.17 km100%total4 km
- Rock Creekord 3len here3.52 km5%total64 km
- Valley Creekord 6len here3.28 km4%total80 km
8 more river segmentssorted by Strahler order + length
- Colorado Riverord 6len here3.12 km0%total1874 km
- Bluff Creekord 3len here2.18 km13%total17 km
- Plum Creekord 2len here2.08 km6%total35 km
- South Fork Champion Creekord 3len here1.90 km5%total42 km
- North Fork Champion Creekord 2len here1.03 km4%total29 km
- Horse Holloword 1len here0.63 km3%total20 km
- Stink Creekord 2len here0.47 km4%total13 km
- Willmo Sand Creekord 1len here≈ tangenttotal14 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
18,4%
Pesticides
6,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)