Conservation Easement · usa
Usal Forest
- Area
- 205 km²
- IUCN cat.
- Not Assigned
- Year
- 2011
Overview
- Designation
- Conservation Easement
- Established
- 2011
- Managing authority
- Non-Governmental Organization
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
473 distinct species · 1 976 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 47 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 Usal Forest : 36 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 96 interactions GloBI sur 5 types (connectance 8.5%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology2 basins · 0 lakes · 18 rivers
Hydrology metrics for this exact territory
Stream length here
64,5km
Basins crossed
2
Max stream order
4
Max drainage
1 767km²
Discharge in basins
7,6m³/s
Mean precip.
1 681mm/an
Mean T°
11,2°C
Moisture idx
0,34
Max snow
11%
Mean runoff
1 193mm/an
Mean elev. (basins)
439m
Watersheds crossing here
Rivers / streams (18, ord ≥ 4)
- Indian Creekord 2len here11.93 km58%total21 km
- Usal Creekord 3len here10.24 km93%total11 km
- Chimney Rock Creekord 1len here6.29 km100%total6 km
- South Fork Eel Riverord 4len here5.40 km5%total114 km
- Standley Creekord 2len here4.87 km85%total6 km
- Wildcat Creekord 2len here4.77 km94%total5 km
- Hollow Tree Creekord 2len here3.77 km25%total15 km
- Bear Pen Creekord 1len here3.68 km97%total4 km
- Piercy Creekord 1len here3.06 km99%total3 km
- South Fork Usal Creekord 1len here2.99 km100%total3 km
- Moody Creekord 1len here2.67 km100%total3 km
- Sebbas Creekord 2len here1.91 km51%total4 km
6 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 39.89773, -123.81900
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.