Ontologia

HydroBASINS lev08 watershed · #7080470590

Bassin de Niobrara 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 1 administrative regions : Cherry

Pfafstetter: 74295671

Sub-basin area

585,4km²

Upstream area

15 261,2km²

Discharge

3,97m³/s

Mean elev.

904m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ainsworth Canal172 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

422 distinct species · 4 150 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 150 obs · 15 cellules
Obs. / cellule
≥ 1 726
657–1 725
268–656
67–267
< 67

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

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

Indicateurs du tissu écologique

Tissu écologique de Bassin de Niobrara River : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 110 interactions GloBI sur 4 types (connectance 13.4%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
110
Connectance
0.134
Patrimoniales
1
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°

8,5°C

Annual rain

489mm

Moisture idx (CMI)

-0,56

Runoff

47mm/an

PET

1 101mm

AET

421mm

Mean slope

2,0°

Water table

633cm

Forest

4%

Crops

11%

Urban

0%

Protected

2%

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