County · USA
San Saba
United States
Species observed
2 120
Observations
122 705
Area
2 949,4km²
Ecological tissue
Sample of 30 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 San Saba : 19 espèces reliées par 65 interactions GloBI sur 3 types (connectance 14.9%, filtre Serrano α=0.2). 11 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
2 120 distinct species · 122 705 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
19,0°C
Annual rain
761mm
Warmest m°
34,1°C
Coldest m°
4,3°C
Elevation: 443 m on average (min 331 m, max 579 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
7,1
Org. C
20,9g/kg
Clay
34,9%
Sand
31,6%
Silt
33,5%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiM
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 · 3 lakes · 20 rivers
Hydrology metrics for this exact territory
Stream length here
477,5km
Lake surface here
0,55km²
Basins crossed
9
Max stream order
6
Max drainage
79 467km²
Discharge in basins
43,1m³/s
Mean precip.
690mm/an
Mean T°
18,3°C
Moisture idx
-0,54
Mean runoff
55mm/an
Mean elev. (basins)
448m
Watersheds crossing here
- Bassin de San Saba Riversub-area1 052,1 km²overlap1003.63 km²34%
- Bassin de Colorado Riversub-area2 063,9 km²overlap789.13 km²27%
- Bassin de Colorado Riversub-area744,8 km²overlap420.83 km²14%
- Bassin de San Saba Riversub-area2 860,6 km²overlap319.19 km²11%
- Bassin de Colorado Riversub-area363,2 km²overlap125.30 km²4%
- Bassin de Llano Riversub-area2 620,6 km²overlap124.70 km²4%
- Bassin de Brady Creeksub-area2 031,5 km²overlap115.26 km²4%
- Bassin de Colorado Riversub-area397,2 km²overlap51.93 km²2%
- Bassin de Pecan Bayousub-area23,5 km²overlap0.30 km²0%
Lakes (3, top by area)
Rivers / streams (20, ord ≥ 4)
- Colorado Riverord 6len here168.59 km9%total1874 km
- San Saba Riverord 5len here89.43 km28%total317 km
- Cherokee Creekord 2len here73.60 km100%total74 km
- Richland Springs Creekord 2len here37.56 km100%total38 km
- Deep Creekord 4len here34.75 km32%total110 km
- Brady Creekord 4len here21.47 km11%total192 km
- Marley Creekord 1len here10.64 km100%total11 km
- Jerrys Branchord 2len here10.05 km100%total10 km
- Wallace Creekord 2len here8.74 km100%total9 km
- Fall Creekord 2len here4.75 km27%total18 km
- Rough Creekord 1len here3.91 km100%total4 km
- Little Llano Riverord 2len here3.88 km14%total28 km
8 more river segmentssorted by Strahler order + length
- Spicewood Creekord 6len here2.82 km81%total3 km
- Post Oak Creekord 6len here2.27 km17%total13 km
- Cold Creekord 2len here1.46 km13%total11 km
- Flat Branchord 1len here1.15 km100%total1 km
- Plum Holloword 1len here0.91 km99%total1 km
- Pecan Bayouord 5len here0.75 km0%total215 km
- Post Oak Draword 2len here0.69 km17%total4 km
- Prescott Creekord 1len here0.12 km2%total6 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,1nW
Built-up
8,6%
Pesticides
4,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)