UNESCO-MAB Biosphere Reserve · USA
Three Sisters
- Area
- 1 099 km²
- IUCN cat.
- Not Applicable
- Year
- 1976
Overview
- Designation
- UNESCO-MAB Biosphere Reserve
- Established
- 1976
- Managing authority
- Not Reported
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
1 861 distinct species · 34 387 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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 Three Sisters : 19 espèces reliées par 115 interactions GloBI sur 5 types (connectance 15.5%, filtre Serrano α=0.2). 20 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology8 basins · 11 lakes · 42 rivers
Hydrology metrics for this exact territory
Stream length here
255,2km
Lake surface here
2,68km²
Basins crossed
8
Max stream order
3
Max drainage
5 551km²
Discharge in basins
34,3m³/s
Mean precip.
1 327mm/an
Mean T°
5,6°C
Moisture idx
0,25
Max snow
43%
Mean runoff
929mm/an
Mean elev. (basins)
1 347m
Watersheds crossing here
- Bassin de Horse Creeksub-area384,7 km²overlap309.40 km²28%
- Bassin de South Fork McKenzie Riversub-area553,1 km²overlap286.81 km²26%
- Bassin de Deschutes Riversub-area1 685,3 km²overlap204.46 km²19%
- Bassin de Whychus Creeksub-area799 km²overlap130.88 km²12%
- Bassin de McKenzie Riversub-area917,8 km²overlap120.27 km²11%
- Bassin de North Fork Middle Fork Willamette Riversub-area638,8 km²overlap34.59 km²3%
- Bassin de Deschutes Riversub-area1 161,8 km²overlap8.37 km²1%
- Bassin de Snow Creek Ditchsub-area408,8 km²overlap3.96 km²0%
Lakes (11, top by area)
- Lac 1047171area0,5 km²avg depth5.9 m
- Lac 1047334area0,3 km²avg depth5.7 m
- Lac 1047094area0,3 km²avg depth6.7 m
- Lac 1046551area0,3 km²avg depth5.7 m
- Lac 1046249area0,3 km²avg depth9.9 m
- Lac 1046958area0,2 km²avg depth3.6 m
- Lac 1047076area0,2 km²avg depth6.5 m
- Lac 1047609area0,2 km²avg depth3.3 m
- Lac 1046878area0,1 km²avg depth4.7 m
Rivers / streams (42, ord ≥ 4)
- Horse Creekord 6len here25.64 km17%total155 km
- Separation Creekord 2len here23.36 km100%total23 km
- White Branchord 3len here18.66 km75%total25 km
- South Fork McKenzie Riverord 3len here15.29 km47%total33 km
- French Pete Creekord 3len here14.29 km88%total16 km
- Eugene Creekord 2len here13.56 km78%total17 km
- Elk Creekord 6len here10.77 km5%total210 km
- Linton Creekord 2len here9.22 km100%total9 km
- South Fork Whychus Creekord 2len here9.08 km100%total9 km
- Fall Creekord 4len here8.75 km5%total162 km
- Louise Creekord 2len here8.15 km100%total8 km
- East Fork South Fork McKenzie Riverord 3len here7.32 km43%total17 km
30 more river segmentssorted by Strahler order + length
- Harvey Creekord 2len here7.28 km19%total38 km
- Olallie Creekord 4len here6.84 km34%total20 km
- Walker Creekord 4len here6.00 km23%total26 km
- Obsidian Creekord 1len here5.67 km100%total6 km
- Sphinx Creekord 1len here5.59 km100%total6 km
- Rebel Creekord 3len here5.27 km92%total6 km
- West Fork Park Creekord 1len here4.97 km100%total5 km
- Soap Creekord 2len here4.53 km16%total29 km
- Cultus Riverord 3len here4.14 km23%total18 km
- Aspen Creekord 2len here3.55 km30%total12 km
- Whychus Creekord 4len here3.47 km5%total65 km
- Wildcat Creekord 6len here3.38 km3%total101 km
- Mosquito Creekord 3len here3.13 km6%total53 km
- Rainbow Creekord 3len here2.99 km13%total24 km
- Shadow Creekord 2len here2.97 km19%total16 km
- Roney Creekord 3len here2.33 km75%total3 km
- Gold Creekord 5len here2.31 km1%total217 km
- North Fork Middle Fork Willamette Riverord 3len here2.26 km3%total77 km
- Bull Creekord 6len here2.25 km3%total73 km
- Proxy Creekord 1len here2.00 km100%total2 km
- Goose Creekord 4len here1.74 km1%total288 km
- Skookum Creekord 6len here1.71 km14%total12 km
- Mesa Creekord 1len here1.50 km100%total2 km
- Honey Creekord 1len here1.27 km100%total1 km
- Crater Creekord 2len here1.16 km5%total22 km
- Frog Camp Creekord 2len here1.07 km16%total7 km
- Trout Creekord 6len here0.86 km0%total345 km
- Soda Creekord 1len here0.50 km7%total7 km
- Park Creekord 3len here0.33 km1%total60 km
- Pothole Creekord 1len here0.06 km3%total2 km
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
- 44.03516, -122.00229
- 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.