Gratiot-Saginaw State
IUCN VGame Area
68 km²
County · USA
Saginaw
United States
DfaCold, no dry season, hot summer(98 %)
Species observed
2 769
Observations
509 570
Area
2 114,2km²
Ecological tissue
Sample of 37 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 Saginaw : 28 espèces reliées par 73 interactions GloBI sur 3 types (connectance 11.0%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
37
Interactions affichées
73
Connectance
0.110
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
2 769 distinct species · 509 570 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
8,9°C
Annual rain
943mm
Warmest m°
27,4°C
Coldest m°
-9,1°C
Elevation: 190 m on average (min 176 m, max 222 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
8,9°C
Annual rain
943mm
Warmest month
27,4°C
Coldest month
-9,1°C
Mean alt.
190m
Min
176m
Max
222m
Std. dev.
9m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(98 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,7
Org. C
50,6g/kg
Clay
33,4%
Sand
21,1%
Silt
45,5%
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
6,6
Org. C
64,6g/kg
Clay
31,8%
Sand
21,6%
Silt
46,5%
5–15 cm
pH H₂O
6,7
Org. C
49,1g/kg
Clay
33,3%
Sand
21,1%
Silt
45,6%
15–30 cm
pH H₂O
6,8
Org. C
38,0g/kg
Clay
35,0%
Sand
20,6%
Silt
44,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest30.6%
Crops39.5%
Built-up1.4%
Bare soil0.8%
Other (grassland, water…)27.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology11 basins · 16 lakes · 37 rivers
Hydrology metrics for this exact territory
Stream length here
515,4km
Lake surface here
13,54km²
Basins crossed
11
Max stream order
6
Max drainage
17 711km²
Discharge in basins
220,1m³/s
Mean precip.
767mm/an
Mean T°
8,2°C
Moisture idx
-0,19
Max snow
22%
Mean runoff
215mm/an
Mean elev. (basins)
217m
Watersheds crossing here
- Bassin de Shiawassee Riversub-area2 915,4 km²overlap963.10 km²46%
- Bassin de Saginaw Riversub-area667,1 km²overlap364.61 km²17%
- Bassin de Cass Riversub-area2 613 km²overlap272.98 km²13%
- Bassin de Misteguay Creeksub-area351,1 km²overlap142.56 km²7%
- Bassin de Parker Swamp Drainsub-area372,1 km²overlap139.33 km²7%
- Bassin de Flint Riversub-area537,4 km²overlap104.54 km²5%
- Bassin de Fairchild Creeksub-area131,9 km²overlap71.77 km²3%
- Bassin de Shiawassee Riversub-area29,5 km²overlap29.52 km²1%
- Bassin de North Branch Kawkawlin Riversub-area644,4 km²overlap16.16 km²1%
2 more basinssorted by overlap
Lakes (16, top by area)
- Lake #10988area7,8 km²avg depth2.1 m
- Lake #11001area1,2 km²avg depth1.5 m
- Lac 1048796area0,8 km²avg depth2.3 m
- Lac 1048353area0,7 km²avg depth1.7 m
- Lac 1048672area0,7 km²avg depth1.7 m
- Lac 1048332area0,4 km²avg depth1.3 m
- Lac 1048552area0,3 km²avg depth1.7 m
- Lac 1048693area0,3 km²avg depth1.5 m
- Lac 1048270area0,3 km²avg depth1.3 m
Rivers / streams (37, ord ≥ 4)
- Bad Riverord 5len here39.69 km29%total138 km
- South Fork Bad Riverord 3len here33.97 km94%total36 km
- Misteguay Creekord 2len here32.04 km59%total55 km
- Saginaw Riverord 6len here30.61 km59%total52 km
- Cass Riverord 4len here30.05 km33%total92 km
- Parker Swamp Drainord 5len here28.04 km94%total30 km
- Flint Riverord 4len here26.74 km18%total146 km
- Cheboyganing Creekord 6len here25.28 km76%total33 km
- Shiawassee Riverord 6len here24.16 km15%total159 km
- Fairchild Creekord 4len here19.57 km23%total85 km
- Beaver Creekord 4len here17.81 km5%total381 km
- Lamb Creekord 2len here17.62 km85%total21 km
25 more river segmentssorted by Strahler order + length
- McClellan Runord 2len here17.20 km84%total20 km
- Swan Creekord 3len here17.08 km14%total119 km
- Griffus Creekord 1len here12.93 km100%total13 km
- Weeks Drainord 2len here12.13 km94%total13 km
- Bear Creekord 5len here11.64 km3%total415 km
- English Drainord 1len here10.51 km100%total11 km
- Cool Creekord 1len here10.50 km100%total10 km
- Pine Runord 2len here9.89 km48%total20 km
- Schluckbier Drainord 2len here9.53 km43%total22 km
- Wilson Drainord 1len here9.35 km83%total11 km
- Pickerel Creekord 3len here9.01 km15%total60 km
- Eagle Creekord 2len here8.54 km11%total76 km
- Deer Creekord 4len here8.53 km4%total234 km
- Whitmore Drainord 1len here6.61 km94%total7 km
- Morgan Creekord 2len here5.52 km14%total39 km
- Ivey Drainord 1len here5.28 km100%total5 km
- Nelson Runord 2len here4.98 km97%total5 km
- Mickles Creekord 3len here4.86 km85%total6 km
- Northwood Creekord 2len here4.11 km100%total4 km
- Squaconning Creekord 1len here2.83 km8%total34 km
- Kochville Drainord 1len here2.79 km100%total3 km
- Mitchell Creekord 2len here2.64 km7%total37 km
- Fleming Drainord 1len here2.33 km100%total2 km
- Blumfield Creekord 2len here0.67 km101%total1 km
- Quanicassee Creekord 2len here0.39 km4%total11 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
2,7nW
Built-up
141,4%
Pesticides
28,7kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas38
IUCN Not Assigned · 27IUCN V · 10IUCN IV · 1
State
IUCN VForest
46 km²
Shiawassee
IUCN IVNational Wildlife Refuge · 1953
41 km²
Shiawassee River State
IUCN VGame Area
40 km²
Forest
IUCN VReserve
23 km²
Crow Island
IUCN VWildlife Reserve · 2008
15 km²
Complete list38 protected areas
- Gratiot-Saginaw StateGame AreaIUCN V68 km²
- StateForestIUCN V46 km²
- ShiawasseeNational Wildlife RefugeIUCN IV195341 km²
- Shiawassee River StateGame AreaIUCN V40 km²
- ForestReserveIUCN V23 km²
- Crow IslandWildlife ReserveIUCN V200815 km²
- Wetlands Reserve Program (WRP), Saginaw, MIReserve ProgramIUCN V19963 km²
- 08-73-0023Conservation EasementIUCN Not Assigned20121 km²
- 06-73-0083Conservation EasementIUCN Not Assigned20081 km²
- 00-00-0037Conservation EasementIUCN Not Assigned20101 km²
- Little Forks Conservancy Easement # MI-116214EasementIUCN Not Assigned20010 km²
- Shiawassee River State Game Area 5Game AreaIUCN V20100 km²
- Frankenmuth ConservationForestIUCN V0 km²
- Shiawassee River State Game Area 6Game AreaIUCN V20110 km²
- 00-09-0031Conservation EasementIUCN Not Assigned20080 km²
- 97-08-0401Conservation EasementIUCN Not Assigned20080 km²
- 01-73-0116Conservation EasementIUCN Not Assigned20080 km²
- 93-08-0030Conservation EasementIUCN Not Assigned20140 km²
- 07-73-0021Conservation EasementIUCN Not Assigned20080 km²
- 97-08-0026Conservation EasementIUCN Not Assigned20060 km²
- 95-08-0401Conservation EasementIUCN Not Assigned20080 km²
- 08-73-0049Conservation EasementIUCN Not Assigned20130 km²
- 00-00-0041Conservation EasementIUCN Not Assigned20120 km²
- 02-73-0004Conservation EasementIUCN Not Assigned20080 km²
- 11-73-0047Conservation EasementIUCN Not Assigned20120 km²
- 92-08-0406Conservation EasementIUCN Not Assigned20080 km²
- 03-73-0079Conservation EasementIUCN Not Assigned20080 km²
- 03-73-0003Conservation EasementIUCN Not Assigned20080 km²
- Woelzlein Nature PreseveLocal Conservation AreaIUCN V0 km²
- 90-08-0208Conservation EasementIUCN Not Assigned20080 km²
- 10-73-0018Conservation EasementIUCN Not Assigned20110 km²
- 07-73-0062Conservation EasementIUCN Not Assigned20090 km²
- 93-08-0005Conservation EasementIUCN Not Assigned20080 km²
- 04-73-0104Conservation EasementIUCN Not Assigned20080 km²
- 97-08-0413Conservation EasementIUCN Not Assigned20080 km²
- 90-08-0334Conservation EasementIUCN Not Assigned20080 km²
- 90-08-0071Conservation EasementIUCN Not Assigned20080 km²
- 98-08-0933Conservation EasementIUCN Not Assigned20140 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN