Ontologia

HydroBASINS lev08 watershed · #8080277960

Bassin de Nyarling 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 : Fort Smith

7% lakePfafstetter: 82258040

Sub-basin area

2 035,9km²

Upstream area

2 035,9km²

Discharge

1,94m³/s

Mean elev.

236m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Little Buffalo River933 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

163 distinct species · 793 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

793 obs · 27 cellules
Obs. / cellule
≥ 157
112–156
24–111
6–23
< 6

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

Ecological tissue

Sample of 42 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 Nyarling River : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 75 interactions GloBI sur 4 types (connectance 8.3%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
75
Connectance
0.083
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°

-3,5°C

Annual rain

338mm

Moisture idx (CMI)

-0,36

Runoff

18mm/an

PET

525mm

AET

297mm

Mean slope

1,4°

Water table

16cm

Forest

48%

Crops

0%

Urban

0%

Protected

84%

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