HydroBASINS lev08 watershed · #7080440280

Bassin de Elm Creek

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 3 administrative regions : Buffalo, Hand, Hyde

2% lakePfafstetter: 74295924

Sub-basin area

926,5km²

Upstream area

926,5km²

Discharge

1,49m³/s

Mean elev.

575m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Crow Creek97 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

Hyde
South Dakota · United States
401.6 km²
43.3% of basin
Hand
South Dakota · United States
353.2 km²
38.0% of basin
Buffalo
South Dakota · United States
173.6 km²
18.7% of basin

8 intersecting protected areas

Hand County
IUCN V
Waterfowl Production Area
22.08 km² overlap
Buffalo County
IUCN V
Waterfowl Production Area
19.22 km² overlap
Hand County
IUCN V
Waterfowl Production Area
13.56 km² overlap
Hawkins Game Production Area
IUCN V
State Wildlife Management Area
5.18 km² overlap
Hyde County
IUCN V
Waterfowl Production Area
2.24 km² overlap
Grassland Reserve Program (GRP), Hand, SD
IUCN V
Reserve Program
0.82 km² overlap
Grasslands Reserve Program (GRP)
IUCN Not Assigned
Reserve Program
0.62 km² overlap
Curtis
IUCN V
State Wildlife Management Area
0.36 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

222 distinct species · 1 749 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 32 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 Bassin de Elm Creek : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 107 interactions GloBI sur 4 types (connectance 19.1%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

107

Connectance

0.191

Patrimoniales

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

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

Hydroclimate (BasinATLAS lev08)

Mean T°

6,9°C

Annual rain

476mm

Moisture idx (CMI)

-0,54

Runoff

44mm/an

PET

1 033mm

AET

410mm

Mean slope

1,4°

Water table

228cm

Forest

Crops

34%

Urban

Protected

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)