Ruisseau· 18 segments

South Branch Au Sable River

Crosses 2 administrative regions : Crawford, Roscommon

ruisseau

Total length

78km

Max discharge

7,8m³/s

Max Strahler

Segments matched

River geography2 admin regions · 0 communes

Parent watershed

hybas-70804230001039 km²

2 administrative regions crossed (GADM L2)

Roscommon
Michigan · United States
49.1 km
in this dpt
Crawford
Michigan · United States
40.2 km
in this dpt

11 intersecting protected areas

Gaylord State Forest Area
IUCN V
State Forest
Roscommon State Forest Area
IUCN V
State Forest
Kirtlands Warbler
IUCN V
Wildlife Management Area
Kirtland Warbler Unit St. Helen
IUCN V
Wildlife Habitat Management Area
Kirtland Warbler Unit Pere Cheney
IUCN V
Wildlife Habitat Management Area
Natural Area South Branch AuSable River
IUCN V
Natural Area
Roscommon Forest Management Unit
IUCN V
Forest
Jones
IUCN Not Assigned
Easement
Mires
IUCN Not Assigned
Easement

2 more protected areassorted by area

01-72-0080
IUCN Not Assigned
Conservation Easement
14-72-0002
IUCN Not Assigned
Conservation Easement

1 page = 1 named river (aggregation of 18 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

195 distinct species · 778 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 41 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de South Branch Au Sable River : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 4 types (connectance 9.0%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.090

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)