Ontologia

HydroBASINS lev08 watershed · #7080706180

Bassin de Elm Fork Trinity 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 4 administrative regions : Collin, Dallas, Denton, Tarrant

12% lakePfafstetter: 75140801

Sub-basin area

315,8km²

Upstream area

6 665,5km²

Discharge

36,27m³/s

Mean elev.

157m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Trinity River1275 km²

▲ Receives from 2 basins

4 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

2 686 distinct species · 177 103 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

177 103 obs · 8 cellules
Obs. / cellule
≥ 66 643
66 643–66 642
21 846–66 642
17 652–21 845
< 17 652

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

Ecological tissue

Sample of 50 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 Elm Fork Trinity River : 40 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 108 interactions GloBI sur 5 types (connectance 8.8%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
50
Interactions affichées
108
Connectance
0.088
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°

18,5°C

Annual rain

907mm

Moisture idx (CMI)

-0,35

Runoff

186mm/an

PET

1 388mm

AET

767mm

Mean slope

0,7°

Water table

100cm

Forest

12%

Crops

3%

Urban

98%

Protected

0%

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