Blackwater
IUCN VWildlife Management Area
248 km²
County · USA
Garrett
United States
DfbCold, no dry season, warm summer(97 %)
Species observed
5 389
Observations
908 467
Area
1 723,4km²
Ecological tissue
Sample of 31 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 Garrett : 21 espèces reliées par 66 interactions GloBI sur 4 types (connectance 12.5%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
33
Interactions affichées
66
Connectance
0.125
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
5 389 distinct species · 908 467 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
9,0°C
Annual rain
1 373mm
Warmest m°
24,5°C
Coldest m°
-7,2°C
Elevation: 749 m on average (min 362 m, max 914 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
9,0°C
Annual rain
1 373mm
Warmest month
24,5°C
Coldest month
-7,2°C
Mean alt.
749m
Min
362m
Max
914m
Std. dev.
84m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(97 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
4,7
Org. C
81,5g/kg
Clay
21,7%
Sand
36,2%
Silt
42,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
4,6
Org. C
178,9g/kg
Clay
20,8%
Sand
36,8%
Silt
42,4%
5–15 cm
pH H₂O
4,7
Org. C
49,1g/kg
Clay
21,7%
Sand
36,0%
Silt
42,2%
15–30 cm
pH H₂O
4,7
Org. C
16,6g/kg
Clay
22,6%
Sand
35,9%
Silt
41,6%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest74.4%
Crops9.5%
Built-up0.4%
Bare soil0.1%
Other (grassland, water…)15.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology7 basins · 10 lakes · 32 rivers
Hydrology metrics for this exact territory
Stream length here
411,4km
Lake surface here
20,20km²
Basins crossed
7
Max stream order
4
Max drainage
1 612km²
Discharge in basins
32,4m³/s
Mean precip.
1 167mm/an
Mean T°
8,2°C
Moisture idx
0,15
Max snow
11%
Mean runoff
559mm/an
Mean elev. (basins)
743m
Watersheds crossing here
- Bassin de Youghiogheny Riversub-area1 108,3 km²overlap825.60 km²48%
- Bassin de Savage Riversub-area316,8 km²overlap317.12 km²18%
- Bassin de North Branch Potomac Riversub-area722,9 km²overlap262.25 km²15%
- Bassin de Casselman Riversub-area1 203,7 km²overlap248.73 km²14%
- Bassin de North Branch Potomac Riversub-area572,1 km²overlap64.50 km²4%
- Bassin de Wills Creeksub-area662,6 km²overlap4.38 km²0%
- Bassin de Big Sandy Creeksub-area530,6 km²overlap0.84 km²0%
Lakes (10, top by area)
- Deep Creek Lakearea14,6 km²avg depth12.3 m
- Youghiogheny River Lakearea8,9 km²avg depth41.5 m
- Jennings Randolph Lakearea3 km²avg depth53.7 m
- Savage Reservoirarea0,7 km²avg depth55.4 m
- Lac 1056702area0,6 km²avg depth4.7 m
- Lac 1056367area0,4 km²avg depth6.9 m
- Lac 1056393area0,3 km²avg depth4.8 m
- Lac 1056639area0,2 km²avg depth4.3 m
- Lac 1056533area0,2 km²avg depth3.2 m
1 more lakes
Rivers / streams (32, ord ≥ 4)
- Youghiogheny Riverord 5len here89.19 km33%total273 km
- North Branch Potomac Riverord 5len here67.80 km35%total195 km
- Deep Creekord 5len here39.38 km10%total411 km
- Savage Riverord 3len here34.69 km100%total35 km
- Bear Creekord 6len here33.99 km2%total2230 km
- Casselman Riverord 4len here15.21 km12%total126 km
- Little Youghiogheny Riverord 2len here13.57 km100%total14 km
- North Branch of Casselman Riverord 2len here12.90 km100%total13 km
- Mill Runord 3len here12.11 km27%total44 km
- South Branch of Casselman Riverord 2len here11.97 km100%total12 km
- Crabtree Creekord 2len here10.64 km100%total11 km
- Muddy Creekord 6len here9.29 km1%total1107 km
20 more river segmentssorted by Strahler order + length
- Buffalo Runord 2len here8.74 km83%total11 km
- Poplar Lick Runord 1len here8.64 km100%total9 km
- Broad Ford Runord 1len here4.76 km100%total5 km
- Bear Pen Runord 2len here4.50 km100%total5 km
- Wilson Runord 2len here4.10 km60%total7 km
- Snowy Creekord 2len here3.92 km53%total7 km
- Little Bear Creekord 2len here3.36 km2%total175 km
- Meadow Runord 3len here3.16 km7%total47 km
- Mill Runord 2len here3.16 km17%total19 km
- Whites Creekord 4len here3.06 km2%total152 km
- Glade Runord 4len here2.51 km5%total49 km
- Landons Dam Runord 1len here2.33 km100%total2 km
- Mudlick Runord 1len here2.20 km100%total2 km
- Red Runord 3len here1.80 km9%total21 km
- Cherry Creekord 5len here1.70 km1%total324 km
- North Branchord 1len here1.12 km100%total1 km
- Buffalo Creekord 2len here0.79 km30%total3 km
- Georges Creekord 2len here0.74 km3%total22 km
- Deakin Runord 1len here0.03 km1%total3 km
- Abram Creekord 2len here0.03 km1%total5 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,4nW
Built-up
36,7%
Pesticides
4,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas29
IUCN V · 18IUCN Not Assigned · 7IUCN III · 3IUCN Ib · 1🌊 Marine · 1
DNR
IUCN Not AssignedConservation Easement
146 km²
Allegheny
IUCN VWildlife Management Area
28 km²
Youghiogheny River
IUCN VNatural Environment Area
16 km²
Mt. Nebo W
IUCN IbState Wilderness
8 km²
North Cherry Creek Bog Fee
IUCN VPrivate Conservation Land · 2002
3 km²
Complete list29 protected areas
- BlackwaterWildlife Management AreaIUCN V248 km²
- DNRConservation EasementIUCN Not Assigned146 km²
- AlleghenyWildlife Management AreaIUCN V28 km²
- Youghiogheny RiverNatural Environment AreaIUCN V16 km²
- Mt. Nebo WState WildernessIUCN Ib8 km²
- North Cherry Creek Bog FeePrivate Conservation LandIUCN V20023 km²
- Cranesville Swamp FeePrivate Conservation LandIUCN V19603 km²
- Maryland Environmental Trust Easement #9EasementIUCN Not Assigned3 km²
- New GermanyState ParkIUCN III3 km²
- Cranesville SwampPreserveIUCN V19602 km²
- Cranesville Swamp FeePrivate Conservation LandIUCN V19962 km²
- The Glades FeePrivate Conservation LandIUCN V19862 km²
- Swallow FallsState ParkIUCN III20062 km²
- Finzel Swamp FeePrivate Conservation LandIUCN V19701 km²
- Bear Pen HeadwatersHeritage ConservationIUCN V19911 km²
- Hammel Glade FeePrivate Conservation LandIUCN V19841 km²
- Big RunState ParkIUCN III20061 km²
- Garrett CountyPCLIUCN V0 km²
- Lower Deep CreekHeritage ConservationIUCN V19910 km²
- Caroline WilsonSanctuaryIUCN V19880 km²
- Crabtree Cave FeePrivate Conservation LandIUCN V19850 km²
- Savage River AreaPCLIUCN V0 km²
- John Friend Cave FeePrivate Conservation LandIUCN V19840 km²
- Youghiogheny Wild RiverNatural Environment AreaIUCN V0 km²
- Maryland Environmental Trust Easement #29EasementIUCN Not Assigned0 km²
- Maryland Environmental Trust Easement #82EasementIUCN Not Assigned0 km²
- Maryland Environmental Trust Easement #37EasementIUCN Not Assigned0 km²
- Maryland Environmental Trust Easement #80EasementIUCN Not Assigned0 km²
- Maryland Environmental Trust Easement #81EasementIUCN Not Assigned0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN