Ontologia

HydroBASINS lev08 watershed · #7080684050

Bassin de Red 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 3 administrative regions : Bryan, Fannin, Grayson

17% lakePfafstetter: 74225090

Sub-basin area

2 315,6km²

Upstream area

104 536,4km²

Discharge

218,9m³/s

Mean elev.

194m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Red River71 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

2 622 distinct species · 134 061 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

134 061 obs · 60 cellules
Obs. / cellule
≥ 21 924
9 573–21 923
871–9 572
344–870
< 344

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

Ecological tissue

Sample of 38 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 Red River : 27 espèces reliées par 84 interactions GloBI sur 4 types (connectance 11.9%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
84
Connectance
0.119
Patrimoniales
0
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°

17,1°C

Annual rain

1 046mm

Moisture idx (CMI)

-0,23

Runoff

250mm/an

PET

1 355mm

AET

885mm

Mean slope

0,9°

Water table

85cm

Forest

18%

Crops

39%

Urban

3%

Protected

0%

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