Killdeer Mountains
IUCN VState Wildlife Management Area
28 km²
County · USA
Dunn
United States
DfbCold, no dry season, warm summer(85 %)
Species observed
904
Observations
25 786
Area
5 414km²
Ecological tissue
Sample of 35 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 Dunn : 29 espèces reliées par 63 interactions GloBI sur 4 types (connectance 10.6%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
35
Interactions affichées
63
Connectance
0.106
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
904 distinct species · 25 786 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
5,8°C
Annual rain
432mm
Warmest m°
28,1°C
Coldest m°
-13,3°C
Elevation: 683 m on average (min 556 m, max 958 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
5,8°C
Annual rain
432mm
Warmest month
28,1°C
Coldest month
-13,3°C
Mean alt.
683m
Min
556m
Max
958m
Std. dev.
60m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(85 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,8
Org. C
25,9g/kg
Clay
25,8%
Sand
37,6%
Silt
36,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,7
Org. C
43,3g/kg
Clay
25,3%
Sand
37,6%
Silt
37,1%
5–15 cm
pH H₂O
6,7
Org. C
21,1g/kg
Clay
25,7%
Sand
37,6%
Silt
36,7%
15–30 cm
pH H₂O
7,0
Org. C
13,3g/kg
Clay
26,4%
Sand
37,5%
Silt
36,1%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest8.2%
Crops21.0%
Built-up0.1%
Bare soil1.3%
Other (grassland, water…)69.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology15 basins · 4 lakes · 23 rivers
Hydrology metrics for this exact territory
Stream length here
788,0km
Lake surface here
151,50km²
Basins crossed
15
Max stream order
8
Max drainage
459 458km²
Discharge in basins
411,2m³/s
Mean precip.
420mm/an
Mean T°
5,3°C
Moisture idx
-0,55
Max snow
24%
Mean runoff
59mm/an
Mean elev. (basins)
683m
Watersheds crossing here
- Bassin de Little Missouri Riversub-area1 448,4 km²overlap1343.62 km²25%
- Bassin de Spring Creeksub-area1 550,2 km²overlap1072.55 km²20%
- Bassin de Knife Riversub-area630,9 km²overlap423.17 km²8%
- Bassin de Deep Creeksub-area575,6 km²overlap422.11 km²8%
- Bassin de Little Missouri Riversub-area2 272,3 km²overlap370.55 km²7%
- Bassin de Crooked Creeksub-area362 km²overlap324.35 km²6%
- Bassin de Knife Riversub-area317,2 km²overlap308.52 km²6%
- Bassin de Knife Riversub-area291,7 km²overlap292.46 km²5%
- Bassin de Green Riversub-area918,3 km²overlap271.05 km²5%
6 more basinssorted by overlap
- Bassin de Missouri Riversub-area1 035,2 km²overlap210.94 km²4%
- Bassin de Branch Knife Riversub-area643,3 km²overlap156.20 km²3%
- Bassin de Missouri Riversub-area982,5 km²overlap129.59 km²2%
- Bassin de Missouri Riversub-area360,4 km²overlap54.58 km²1%
- Bassin de Knife Riversub-area1 003,3 km²overlap29.35 km²1%
- Bassin de Cherry Creeksub-area907,4 km²overlap5.21 km²0%
Lakes (4, top by area)
Rivers / streams (23, ord ≥ 4)
- Little Missouri Riverord 5len here155.12 km9%total1824 km
- Knife Riverord 5len here123.65 km36%total341 km
- Spring Creekord 5len here104.98 km4%total2668 km
- Crooked Creekord 6len here63.22 km6%total1147 km
- Deep Creekord 5len here52.31 km13%total411 km
- Green Riverord 6len here35.96 km3%total1176 km
- Missouri Riverord 8len here35.52 km1%total6197 km
- Sakakawea Creekord 2len here27.06 km78%total35 km
- Branch Knife Riverord 3len here24.43 km43%total56 km
- Little Knife Riverord 3len here23.46 km17%total138 km
- Coyote Creekord 2len here22.78 km30%total77 km
- Gumbo Creekord 3len here22.54 km85%total27 km
11 more river segmentssorted by Strahler order + length
- Murphy Creekord 2len here18.14 km45%total41 km
- Stray Creekord 4len here17.28 km100%total17 km
- Alkali Creekord 3len here11.70 km6%total211 km
- Charlie Bob Creekord 2len here10.11 km51%total20 km
- Cottonwood Creekord 5len here9.94 km1%total1014 km
- North Creekord 4len here9.61 km10%total92 km
- Schaffner Creekord 5len here9.15 km100%total9 km
- Lighting Creekord 1len here4.94 km40%total12 km
- Wolf Creekord 5len here2.89 km0%total1706 km
- Goodman Creekord 2len here1.64 km4%total42 km
- Bear Den Creekord 8len here1.59 km7%total24 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
2,1nW
Built-up
4,6%
Pesticides
10,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas6
IUCN V · 5IUCN IV · 1
Farm Service Agency Interest Of Nd
IUCN VConservation Easement
21 km²
Lake Ilo
IUCN IVNational Wildlife Refuge
16 km²
Dunn Farm Service Agency
IUCN VConservation Easement
4 km²
Lost Bridge
IUCN VState Wildlife Management Area
2 km²
Lost Bridge
IUCN VConservation Easement · 2002
2 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN