Merwin
IUCN VPreserve
3 km²
County · USA
McLean
United States
DfaCold, no dry season, hot summer(100 %)
Species observed
3 514
Observations
525 546
Area
3 073,9km²
Ecological tissue
Sample of 33 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 McLean : 25 espèces reliées par 71 interactions GloBI sur 3 types (connectance 12.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
34
Interactions affichées
71
Connectance
0.127
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
3 514 distinct species · 525 546 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
11,1°C
Annual rain
999mm
Warmest m°
28,6°C
Coldest m°
-7,1°C
Elevation: 233 m on average (min 193 m, max 278 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
11,1°C
Annual rain
999mm
Warmest month
28,6°C
Coldest month
-7,1°C
Mean alt.
233m
Min
193m
Max
278m
Std. dev.
16m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(100 %)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
27,0g/kg
Clay
33,2%
Sand
5,0%
Silt
61,7%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,4
Org. C
38,8g/kg
Clay
32,2%
Sand
5,3%
Silt
62,5%
5–15 cm
pH H₂O
6,4
Org. C
24,1g/kg
Clay
32,6%
Sand
5,0%
Silt
62,3%
15–30 cm
pH H₂O
6,3
Org. C
18,0g/kg
Clay
34,9%
Sand
4,8%
Silt
60,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest5.8%
Crops83.8%
Built-up0.7%
Bare soil0.2%
Other (grassland, water…)9.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology14 basins · 9 lakes · 26 rivers
Hydrology metrics for this exact territory
Stream length here
502,2km
Lake surface here
5,33km²
Basins crossed
14
Max stream order
3
Max drainage
2 354km²
Discharge in basins
40,8m³/s
Mean precip.
940mm/an
Mean T°
10,6°C
Moisture idx
-0,12
Max snow
9%
Mean runoff
321mm/an
Mean elev. (basins)
224m
Watersheds crossing here
- Bassin de Mackinaw Riversub-area734,1 km²overlap669.73 km²22%
- Bassin de Sugar Creeksub-area1 304,9 km²overlap598.87 km²19%
- Bassin de Kickapoo Creeksub-area840,1 km²overlap452.99 km²15%
- Bassin de North Fork Salt Creeksub-area334,5 km²overlap232.68 km²8%
- Bassin de Sangamon Riversub-area1 615,1 km²overlap230.62 km²8%
- Bassin de Turkey Creeksub-area439,8 km²overlap224.66 km²7%
- Bassin de Money Creeksub-area184,7 km²overlap184.90 km²6%
- Bassin de Salt Creeksub-area450,2 km²overlap173.11 km²6%
- Bassin de Mackinaw Riversub-area268,4 km²overlap144.21 km²5%
5 more basinssorted by overlap
Lakes (9, top by area)
- Evergreen Lakearea2,6 km²avg depth10.9 m
- Lake Bloomingtonarea1,4 km²avg depth15.8 m
- Lac 1055623area0,5 km²avg depth3.0 m
- Lac 1055642area0,4 km²avg depth2.4 m
- Lac 1055702area0,4 km²avg depth2.7 m
- Lac 1055633area0,3 km²avg depth1.8 m
- Lac 1055713area0,2 km²avg depth2.7 m
- Lac 1055705area0,1 km²avg depth1.8 m
- Lac 1055636area0,1 km²avg depth1.3 m
Rivers / streams (26, ord ≥ 4)
- Mackinaw Riverord 4len here100.96 km47%total213 km
- Kickapoo Creekord 4len here46.50 km22%total212 km
- Sugar Creekord 6len here38.68 km3%total1414 km
- North Fork Salt Creekord 4len here38.17 km29%total130 km
- Money Creekord 2len here37.41 km44%total86 km
- Little Kickapoo Creekord 2len here29.22 km100%total29 km
- Sangamon Riverord 6len here28.57 km7%total412 km
- Henline Creekord 1len here27.05 km100%total27 km
- Salt Creekord 6len here20.71 km1%total1617 km
- Timber Creekord 6len here20.23 km7%total302 km
- Rock Creekord 8len here19.62 km1%total2074 km
- Sixmile Creekord 5len here15.09 km7%total218 km
14 more river segmentssorted by Strahler order + length
- Crooked Creekord 6len here14.16 km1%total1147 km
- Buck Creekord 5len here13.68 km2%total589 km
- Turkey Creekord 8len here11.13 km1%total1121 km
- Lone Tree Creekord 6len here9.75 km4%total236 km
- Patton Creekord 3len here9.28 km100%total9 km
- Goose Creekord 5len here8.74 km1%total664 km
- Corn Valley Creekord 1len here3.80 km100%total4 km
- Funks Branchord 1len here2.33 km53%total4 km
- Loving Branchord 1len here1.92 km100%total2 km
- Clear Creekord 6len here1.91 km0%total1466 km
- Big Sloughord 3len here1.69 km5%total37 km
- Denman Creekord 1len here0.81 km11%total7 km
- East Branch Panther Creekord 2len here0.80 km3%total28 km
- Wolf Creekord 5len here≈ tangenttotal1706 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
1,7nW
Built-up
72,2%
Pesticides
8,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas25
IUCN V · 25
Saybrook State
IUCN VHabitat Area
3 km²
Stubblefield Woodlots
IUCN VNature Preserve
2 km²
Mohr
IUCN VPreserve
1 km²
Kenneth L. Schroeder
IUCN VWildlife Sanctuary
1 km²
Funks Grove
IUCN VState Natural Area
1 km²
Complete list25 protected areas
- MerwinPreserveIUCN V3 km²
- Saybrook StateHabitat AreaIUCN V3 km²
- Stubblefield WoodlotsNature PreserveIUCN V2 km²
- MohrPreserveIUCN V1 km²
- Kenneth L. SchroederWildlife SanctuaryIUCN V1 km²
- Funks GroveState Natural AreaIUCN V1 km²
- LexingtonPreserveIUCN V1 km²
- Sugar Creek - Salt Creek DrainageConservation AreaIUCN V1 km²
- Kickapoo CreekConservation AreaIUCN V0 km²
- Sweeney WoodsPreserveIUCN V0 km²
- HenlinePreserveIUCN V0 km²
- MoonPreserveIUCN V0 km²
- Breen I - Champion FederalPreserveIUCN V0 km²
- ShelleyPreserveIUCN V0 km²
- NIGPreserveIUCN V0 km²
- Breen IIPreserveIUCN V0 km²
- Howard Virgin TimberParkIUCN V0 km²
- NewlinPreserveIUCN V0 km²
- Frey TimberPreserveIUCN V0 km²
- Angler's LakeNature PreserveIUCN V0 km²
- M.J. Rhymer Family Dry GroveNature PreserveIUCN V0 km²
- Pheasant CreekNature AreaIUCN V0 km²
- HubertPreserveIUCN V0 km²
- Weston Cemetery PrairieNature PreserveIUCN V0 km²
- Weston Cemetery BufferCemeteryIUCN V0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN