HydroBASINS lev08 watershed · #7080508850
Bassin de Tiffin River
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 6 administrative regions : Defiance, Fulton, Henry, Hillsdale, Lenawee +1
Sub-basin area
1 927km²
Upstream area
1 927km²
Discharge
17,89m³/s
Mean elev.
246m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- Williams525.5 km²27.2% of basin
- Fulton432.0 km²22.4% of basin
- 420.5 km²21.8% of basin
- 343.0 km²17.8% of basin
- 168.5 km²8.7% of basin
- Henry40.3 km²2.1% of basin
16 intersecting protected areas
Reserve Program
6.81 km² overlap
Somerset
IUCN VWildlife Reserve
2.90 km² overlap
Oxbow Lake
IUCN VWildlife Area
1.97 km² overlap
Tiffin River
IUCN VWildlife Area
1.91 km² overlap
Reserve Program
1.45 km² overlap
Goll Woods Dedicated
IUCN VNature Preserve
1.26 km² overlap
Parkersburg
IUCN VWildlife Area
0.62 km² overlap
Reserve Program
0.46 km² overlap
Watershed Protection
0.36 km² overlap
7 more protected areassorted by overlap area
Reserve Program
0.35 km² overlap
Wetlands Reserve Program (WRP), Williams, OH
IUCN Not AssignedReserve Program
0.33 km² overlap
Goldie Newman
IUCN VWildlife Area
0.32 km² overlap
Reserve Program
0.29 km² overlap
Robert Powell Memorial
IUCN VNature Preserve
0.22 km² overlap
Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Williams, OH
IUCN VConservation Easement
0.07 km² overlap
93-13-0036
IUCN Not AssignedConservation Easement
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 463 distinct species · 111 787 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Tiffin River : 32 espèces reliées par 68 interactions GloBI sur 3 types (connectance 9.2%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
9,0°C
Annual rain
867mm
Moisture idx (CMI)
-0,14
Runoff
293mm/an
PET
1 010mm
AET
728mm
Mean slope
0,5°
Water table
23cm
Forest
2%
Crops
66%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)