Old Growth Management Areas (Mapped Legal)
IUCN Not ApplicableOld Growth Management Areas (Mapped Legal) · 2019
14 403 km²
Commune · CAN
Bulkley-Nechako F
Canada
DfbCold, no dry season, warm summer(64 %)
Species observed
870
Observations
19 364
Area
5 567,2km²
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).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Bulkley-Nechako F : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 81 interactions GloBI sur 4 types (connectance 16.3%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
32
Interactions affichées
81
Connectance
0.163
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
870 distinct species · 19 364 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
3,7°C
Annual rain
576mm
Warmest m°
21,3°C
Coldest m°
-13,0°C
Elevation: 911 m on average (min 638 m, max 1 471 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
3,7°C
Annual rain
576mm
Warmest month
21,3°C
Coldest month
-13,0°C
Mean alt.
911m
Min
638m
Max
1 471m
Std. dev.
176m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(64 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,3
Org. C
22,3g/kg
Clay
24,4%
Sand
34,3%
Silt
41,3%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: viGLiMaggregated to Bulkley-Nechako
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,1
Org. C
33,5g/kg
Clay
22,2%
Sand
34,5%
Silt
43,3%
5–15 cm
pH H₂O
6,2
Org. C
21,4g/kg
Clay
24,6%
Sand
34,4%
Silt
41,0%
15–30 cm
pH H₂O
6,4
Org. C
12,1g/kg
Clay
26,4%
Sand
34,1%
Silt
39,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest65.6%
Crops2.5%
Built-up0.0%
Bare soil0.8%
Other (grassland, water…)31.1%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology23 basins · 50 lakes · 49 rivers
Hydrology metrics for this exact territory
Stream length here
941,9km
Lake surface here
131,57km²
Basins crossed
23
Max stream order
6
Max drainage
43 050km²
Discharge in basins
953,5m³/s
Mean precip.
506mm/an
Mean T°
1,9°C
Moisture idx
-0,29
Max snow
48%
Mean runoff
179mm/an
Mean elev. (basins)
915m
Watersheds crossing here
- Bassin de Chilako Riversub-area1 011,3 km²overlap931.60 km²17%
- Bassin de Cluculz Creeksub-area690,9 km²overlap641.51 km²12%
- Bassin de Stony Creeksub-area642,4 km²overlap606.16 km²11%
- Bassin de Sinkut Riversub-area431,1 km²overlap432.97 km²8%
- Bassin de Stuart Riversub-area703,3 km²overlap412.74 km²7%
- Bassin de Nechako Riversub-area682,6 km²overlap406.38 km²7%
- Bassin de Butcherflats Creeksub-area343 km²overlap342.29 km²6%
- Bassin de East Murray Creeksub-area371,1 km²overlap334.19 km²6%
- Bassin de Greer Creeksub-area393,2 km²overlap330.36 km²6%
14 more basinssorted by overlap
- Basin #87760sub-area213,4 km²overlap214.33 km²4%
- Bassin de Chilako Riversub-area342,9 km²overlap200.89 km²4%
- Bassin de Hulatt Creeksub-area190,8 km²overlap191.57 km²3%
- Bassin de Stuart Riversub-area444,1 km²overlap172.13 km²3%
- Bassin de Gregg Creeksub-area997,4 km²overlap67.60 km²1%
- Bassin de Nechako Riversub-area705,9 km²overlap58.56 km²1%
- Bassin de Nechako Riversub-area55,7 km²overlap55.94 km²1%
- Bassin de Nechako Riversub-area43,3 km²overlap43.32 km²1%
- Bassin de Pitka Creeksub-area220,5 km²overlap37.94 km²1%
- Bassin de Nechako Riversub-area564,3 km²overlap34.99 km²1%
- Bassin de Euchiniko Riversub-area1 490,8 km²overlap24.73 km²0%
- Bassin de Nechako Riversub-area23,2 km²overlap23.30 km²0%
- Bassin de Nechako Riversub-area868,9 km²overlap3.48 km²0%
- Bassin de Dahl Creeksub-area209,6 km²overlap0.18 km²0%
Lakes (50, top by area)
- Tachick Lakearea21,2 km²avg depth11.3 m
- Cluculz Lakearea19,8 km²avg depth19.9 m
- Tatuk Lakearea18,6 km²avg depth16.3 m
- Nulki Lakearea16,1 km²avg depth7.3 m
- Naltesby Lakearea8,4 km²avg depth18.2 m
- Finger Lakearea8,3 km²avg depth13.3 m
- Eulatazella Lakearea4,7 km²avg depth10.7 m
- Sinkut Lakearea3,5 km²avg depth8.8 m
- Little Bobtail Lakearea2,4 km²avg depth8.2 m
41 more lakes
- Lavoie Lakearea2,3 km²avg depth5.7 m
- Cobb Lakearea2,2 km²avg depth8.8 m
- Tasa Lakearea1,5 km²avg depth12.7 m
- Willington Lakearea1,5 km²avg depth5.1 m
- Lake #86910area1,4 km²avg depth5.7 m
- Gluten Lakearea1,4 km²avg depth5.5 m
- Lake #87063area1,3 km²avg depth7.9 m
- Frank Lakearea1,3 km²avg depth7.2 m
- Johnson Lakearea1,2 km²avg depth4.8 m
- Lumpy Lakearea1 km²avg depth5.4 m
- Lac 865004area0,9 km²avg depth6.2 m
- Lac 856430area0,9 km²avg depth5.0 m
- Lac 855776area0,8 km²avg depth5.0 m
- Lac 865831area0,7 km²avg depth4.5 m
- Lac 862070area0,7 km²avg depth3.8 m
- Lac 861896area0,7 km²avg depth4.4 m
- Lac 864276area0,7 km²avg depth6.4 m
- Lac 861809area0,6 km²avg depth4.0 m
- Lac 841546area0,6 km²avg depth5.5 m
- Lac 840390area0,6 km²avg depth3.4 m
- Lac 842689area0,6 km²avg depth3.7 m
- Lac 865814area0,6 km²avg depth6.5 m
- Lac 865435area0,5 km²avg depth3.9 m
- Lac 857978area0,5 km²avg depth5.4 m
- Lac 852234area0,5 km²avg depth4.4 m
- Lac 856162area0,5 km²avg depth4.6 m
- Lac 838352area0,5 km²avg depth6.1 m
- Lac 859986area0,4 km²avg depth5.4 m
- Lac 858157area0,4 km²avg depth5.8 m
- Lac 858788area0,4 km²avg depth4.1 m
- Lac 843600area0,4 km²avg depth4.1 m
- Lac 852641area0,4 km²avg depth4.9 m
- Lac 858105area0,4 km²avg depth3.3 m
- Lac 863936area0,4 km²avg depth4.3 m
- Lac 860456area0,4 km²avg depth4.6 m
- Lac 860587area0,4 km²avg depth6.1 m
- Lac 859569area0,4 km²avg depth5.4 m
- Lac 865020area0,4 km²avg depth3.6 m
- Lac 863698area0,4 km²avg depth4.2 m
- Lac 848887area0,4 km²avg depth3.2 m
- Lac 840661area0,4 km²avg depth5.1 m
Rivers / streams (49, ord ≥ 4)
- Chilako Riverord 4len here91.66 km87%total105 km
- Cluculz Creekord 3len here87.73 km100%total88 km
- Greer Creekord 3len here68.31 km78%total88 km
- Sinkut Riverord 3len here67.76 km100%total68 km
- Nechako Riverord 6len here53.82 km14%total374 km
- Stuart Riverord 5len here52.24 km35%total149 km
- Butcherflats Creekord 4len here43.76 km100%total44 km
- Finger Creekord 2len here36.95 km86%total43 km
- Clear Creekord 5len here31.11 km60%total52 km
- Stony Creekord 3len here30.41 km69%total44 km
- Corkscrew Creekord 1len here20.91 km100%total21 km
- Burnstead Creekord 1len here20.66 km100%total21 km
37 more river segmentssorted by Strahler order + length
- Goldie Creekord 1len here20.56 km100%total21 km
- Hulatt Creekord 2len here20.51 km100%total20 km
- Norman Creekord 1len here20.37 km83%total24 km
- East Murray Creekord 2len here19.95 km100%total20 km
- Knight Creekord 5len here17.45 km88%total20 km
- Tachick Creekord 2len here17.26 km100%total17 km
- Tsah Creekord 2len here15.91 km90%total18 km
- Kluk Creekord 5len here14.34 km93%total15 km
- Hogsback Creekord 2len here14.31 km100%total14 km
- Kec Creekord 2len here13.30 km100%total13 km
- Bearcub Creekord 2len here13.20 km100%total13 km
- Khai Creekord 1len here13.13 km100%total13 km
- Lavoie Creekord 2len here11.36 km100%total11 km
- Tritt Creekord 2len here10.66 km100%total11 km
- Engstrom Creekord 3len here8.49 km100%total8 km
- Redmond Creekord 5len here8.19 km100%total8 km
- Breadalbane Creekord 1len here8.03 km95%total8 km
- Tatuk Creekord 1len here7.77 km100%total8 km
- Micks Creekord 1len here7.42 km100%total7 km
- Cabin Creekord 1len here7.17 km100%total7 km
- Leduc Creekord 5len here6.77 km100%total7 km
- West Engen Creekord 2len here6.29 km47%total13 km
- Murray Creekord 2len here5.95 km12%total48 km
- Beaverdam Creekord 2len here5.70 km12%total46 km
- Chilco Creekord 1len here5.15 km100%total5 km
- Engen Creekord 2len here5.07 km75%total7 km
- Dog Creekord 7len here4.85 km4%total124 km
- Trankle Creekord 1len here4.47 km100%total4 km
- Gesul Buhn Creekord 1len here4.08 km100%total4 km
- McKay Creekord 1len here3.79 km19%total20 km
- Sob Creekord 2len here3.53 km100%total4 km
- Little Bobtail Creekord 2len here3.32 km100%total3 km
- North Stony Creekord 2len here3.26 km100%total3 km
- Moss Creekord 1len here2.30 km100%total2 km
- Croft Creekord 1len here1.49 km100%total1 km
- Neuco Creekord 1len here0.67 km21%total3 km
- Saxton Creekord 3len here0.46 km1%total38 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
1,2%
Pesticides
0,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas9
IUCN II · 3IUCN Ia · 3IUCN IV · 2IUCN Not Applicable · 1🌊 Marine · 1
STUART RIVER PARK
IUCN IIA - Park · 1999
210 km²
FINGER-TATUK PARK
IUCN IIA - Park · 1999
171 km²
BOBTAIL MOUNTAIN PARK
IUCN IIA - Park · 2000
14 km²
MERIDIAN ROAD (VANDERHOOF) ECOLOGICAL RESERVE
IUCN IaEcological Reserve · 1977
3 km²
BEDNESTI LAKE ECOLOGICAL RESERVE
IUCN IaEcological Reserve · 1978
1 km²
Complete list9 protected areas
- Old Growth Management Areas (Mapped Legal)Old Growth Management Areas (Mapped Legal)IUCN Not Applicable201914 403 km²
- STUART RIVER PARKA - ParkIUCN II1999210 km²
- FINGER-TATUK PARKA - ParkIUCN II1999171 km²
- BOBTAIL MOUNTAIN PARKA - ParkIUCN II200014 km²
- MERIDIAN ROAD (VANDERHOOF) ECOLOGICAL RESERVEEcological ReserveIUCN Ia19773 km²
- BEDNESTI LAKE ECOLOGICAL RESERVEEcological ReserveIUCN Ia19781 km²
- CHILAKO RIVER ECOLOGICAL RESERVEEcological ReserveIUCN Ia19771 km²
- Tachick Lake HomesteadPrivately Owned Conservation AreaIUCN IV20190 km²
- DUC Fee Simple LandsOwnership by Environmental Non-Governmental OrganizationIUCN IV20240 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN