National Wildlife Refuge · usa
Malheur
- Area
- 761 km²
- IUCN cat.
- IV
- Year
- 1908
Overview
- Designation
- National Wildlife Refuge
- IUCN category
- IV · Aire d'habitats / espèces
Gestion active pour maintenir habitats / espèces particuliers
- Established
- 1908
- Managing authority
- U.S. Fish and Wildlife Service
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
1 590 distinct species · 552 752 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Malheur : 23 espèces reliées par 69 interactions GloBI sur 3 types (connectance 13.9%, 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).
Hydrology13 basins · 10 lakes · 11 rivers
Hydrology metrics for this exact territory
Stream length here
116,6km
Lake surface here
376,09km²
Basins crossed
13
Max stream order
5
Max drainage
12 252km²
Discharge in basins
16,1m³/s
Mean precip.
286mm/an
Mean T°
6,9°C
Moisture idx
-0,73
Max snow
19%
Mean runoff
88mm/an
Mean elev. (basins)
1 429m
Watersheds crossing here
- Bassin de Donner und Blitzen Riversub-area2 092,2 km²overlap278.64 km²37%
- Basin #57380sub-area421,2 km²overlap130.02 km²17%
- Basin #57240sub-area1 481,5 km²overlap88.02 km²12%
- Bassin de Silver Creeksub-area328,3 km²overlap86.11 km²11%
- Bassin de Silver Creeksub-area848,2 km²overlap49.03 km²6%
- Basin #73780sub-area85 km²overlap41.50 km²5%
- Basin #57230sub-area53,1 km²overlap30.72 km²4%
- Bassin de West Fork Silvies Riversub-area25,4 km²overlap19.59 km²3%
- Basin #58520sub-area2 036,5 km²overlap17.03 km²2%
Lakes (10, top by area)
- Malheur Lakearea300,3 km²avg depth2.5 m
- Harney Lakearea122 km²avg depth6.9 m
- Stinking Lakearea2,8 km²avg depth4.7 m
- Knox Pondarea1,3 km²avg depth1.3 m
- Baca Lakearea1,1 km²avg depth3.1 m
- Lake #11023area1 km²avg depth0.8 m
- Lac 1048768area0,7 km²avg depth2.3 m
- Lac 1049571area0,6 km²avg depth5.0 m
- Lac 1049315area0,3 km²avg depth1.9 m
1 more lakes
Rivers / streams (11, ord ≥ 4)
- Donner und Blitzen Riverord 4len here48.65 km51%total96 km
- Stubblefield Canalord 4len here13.35 km93%total14 km
- Silver Creekord 5len here12.93 km13%total103 km
- Springs Canalord 3len here10.52 km100%total11 km
- Dry Krumbo Creekord 2len here8.82 km43%total21 km
- Bridge Creekord 2len here5.83 km39%total15 km
- Krumbo Creekord 1len here4.04 km27%total15 km
- Mud Creekord 2len here3.43 km12%total29 km
- Simmons Sloughord 2len here3.05 km69%total4 km
- West Fork Silvies Riverord 4len here3.02 km8%total40 km
- Webb Spring Creekord 1len here2.93 km48%total6 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
- 43.09709, -118.86306
- 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.