Berryessa Snow Mountain
IUCN VNational Monument · 2015
1 647 km²
County · USA
Glenn
United States
CsaTemperate, dry summer, hot summer(83 %)
Species observed
3 157
Observations
546 919
Area
3 434,4km²
Ecological tissue
Sample of 36 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 Glenn : 27 espèces reliées par 81 interactions GloBI sur 3 types (connectance 12.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
36
Interactions affichées
81
Connectance
0.129
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
3 157 distinct species · 546 919 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
16,5°C
Annual rain
713mm
Warmest m°
35,6°C
Coldest m°
3,0°C
Elevation: 398 m on average (min 20 m, max 2 052 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
16,5°C
Annual rain
713mm
Warmest month
35,6°C
Coldest month
3,0°C
Mean alt.
398m
Min
20m
Max
2 052m
Std. dev.
491m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, 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
6,4
Org. C
24,4g/kg
Clay
31,1%
Sand
30,0%
Silt
38,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,4
Org. C
40,0g/kg
Clay
29,7%
Sand
30,8%
Silt
39,5%
5–15 cm
pH H₂O
6,4
Org. C
20,7g/kg
Clay
30,6%
Sand
30,3%
Silt
39,2%
15–30 cm
pH H₂O
6,5
Org. C
12,5g/kg
Clay
33,0%
Sand
29,1%
Silt
37,9%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest22.5%
Crops28.0%
Built-up0.2%
Bare soil5.4%
Other (grassland, water…)43.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology15 basins · 16 lakes · 18 rivers
Hydrology metrics for this exact territory
Stream length here
493,0km
Lake surface here
16,21km²
Basins crossed
15
Max stream order
6
Max drainage
34 201km²
Discharge in basins
465,1m³/s
Mean precip.
678mm/an
Mean T°
14,4°C
Moisture idx
-0,48
Max snow
14%
Mean runoff
349mm/an
Mean elev. (basins)
399m
Watersheds crossing here
- Bassin de Stony Creeksub-area2 068,1 km²overlap1365.17 km²40%
- Bassin de Glenn-Colusa Canalsub-area800,7 km²overlap801.46 km²23%
- Bassin de Logan Creeksub-area430,9 km²overlap323.55 km²9%
- Bassin de Glenn-Colusa Canalsub-area250,3 km²overlap250.56 km²7%
- Bassin de Middle Fork Eel Riversub-area1 937,5 km²overlap150.88 km²4%
- Bassin de Sacramento Riversub-area163,3 km²overlap129.24 km²4%
- Bassin de Sacramento Riversub-area303,2 km²overlap107.38 km²3%
- Bassin de Butte Creeksub-area1 697,4 km²overlap91.00 km²3%
- Bassin de Sacramento Riversub-area609,9 km²overlap82.38 km²2%
6 more basinssorted by overlap
- Bassin de Eel Riversub-area1 806,1 km²overlap55.54 km²2%
- Basin #57090sub-area76 km²overlap35.15 km²1%
- Bassin de Glenn-Colusa Canalsub-area385 km²overlap26.53 km²1%
- Bassin de Big Chico Creeksub-area456,9 km²overlap11.37 km²0%
- Bassin de Dubock Sloughsub-area184 km²overlap4.27 km²0%
- Bassin de Pine Creeksub-area532,1 km²overlap0.01 km²0%
Lakes (16, top by area)
- Black Butte Lakearea10,3 km²avg depth17.2 m
- Stony Gorgearea4,1 km²avg depth15.1 m
- Lake #12311area2,3 km²avg depth0.7 m
- Lake #12303area1,5 km²avg depth0.5 m
- Lake #12306area1,1 km²avg depth0.6 m
- Lac 1056707area0,8 km²avg depth1.2 m
- Lac 1056661area0,7 km²avg depth1.3 m
- Lac 1056674area0,5 km²avg depth1.1 m
- Lac 1056660area0,3 km²avg depth1.1 m
Rivers / streams (18, ord ≥ 4)
- Stony Creekord 6len here116.58 km81%total143 km
- Grindstone Creekord 2len here78.94 km86%total92 km
- Sacramento Riverord 7len here65.30 km10%total673 km
- Glenn-Colusa Canalord 3len here56.38 km39%total144 km
- Briscoe Creekord 4len here32.84 km100%total33 km
- Salt Creekord 5len here27.99 km20%total143 km
- Logan Creekord 3len here27.40 km80%total34 km
- Butte Creekord 4len here17.83 km8%total214 km
- Black Butte Riverord 2len here16.40 km25%total65 km
- North Fork Stony Creekord 3len here15.06 km93%total16 km
- Spanish Creekord 1len here12.14 km100%total12 km
- Paradise Creekord 2len here4.88 km58%total8 km
6 more river segmentssorted by Strahler order + length
- Howard Sloughord 1len here4.42 km96%total5 km
- Little Stony Creekord 3len here4.37 km17%total25 km
- North Fork of Logan Creekord 2len here4.06 km100%total4 km
- North Fork Corbin Creekord 1len here3.37 km100%total3 km
- Corbin Creekord 2len here3.23 km24%total13 km
- Wescott Creekord 2len here1.77 km22%total8 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,2nW
Built-up
22,6%
Pesticides
33,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas16
IUCN V · 12IUCN IV · 2IUCN Ib · 1IUCN Not Assigned · 1
Snow Mountain
IUCN IbWilderness · 1984
245 km²
North Central Valley
IUCN VWildlife Management Area
73 km²
Sacramento
IUCN IVNational Wildlife Refuge · 1989
44 km²
Sacramento River
IUCN IVNational Wildlife Refuge · 1989
42 km²
Upper Butte Basin
IUCN VWildlife Area · 1991
40 km²
Complete list16 protected areas
- Berryessa Snow MountainNational MonumentIUCN V20151 647 km²
- Snow MountainWildernessIUCN Ib1984245 km²
- North Central ValleyWildlife Management AreaIUCN V73 km²
- SacramentoNational Wildlife RefugeIUCN IV198944 km²
- Sacramento RiverNational Wildlife RefugeIUCN IV198942 km²
- Upper Butte BasinWildlife AreaIUCN V199140 km²
- Willow Creek-LurlineWildlife Management AreaIUCN V24 km²
- Sacramento River MegasiteEasementIUCN V20 km²
- Wetlands Reserve Program (WRP), Tehama, CAReserve ProgramIUCN V199618 km²
- Sacramento RiverWildlife AreaIUCN V197815 km²
- Wetlands Reserve Program (WRP), Butte, CAReserve ProgramIUCN V199315 km²
- Wetlands Reserve Program (WRP), Glenn, CAReserve ProgramIUCN V19973 km²
- Glenn, C.Conservation EasementIUCN Not Assigned3 km²
- Sacramento RiverPrivate ConservationIUCN V2 km²
- Hartley IslandPrivate ConservationIUCN V1 km²
- Sacramento River MegasiteEasementIUCN V20010 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN