Ontologia

HydroBASINS lev08 watershed · #2080618940

Bassin de Rio Tua

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 : Alijó, Carrazeda de Ansiães, Murça

Pfafstetter: 23180141

Sub-basin area

134,5km²

Upstream area

3 799km²

Discharge

53,35m³/s

Mean elev.

539m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rio Torto597 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

  • Alijó
    Vila Real · Portugal
    74.8 km²
    55.6% of basin
  • Carrazeda de Ansiães
    Bragança · Portugal
    59.9 km²
    44.4% of basin
  • Murça
    Vila Real · Portugal
    0.0 km²
    0.0% of basin

1 intersecting protected areas

  • Vale do Tua

    IUCN V

    Regional Natural Park

    63.66 km² overlap

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

Species present

2 685 distinct species · 496 220 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

496 220 obs · 4 cellules
Obs. / cellule
≥ 308 788
308 788–308 787
171 882–308 787
171 882–171 881
< 171 882

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

Ecological tissue

Sample of 35 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 Rio Tua : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 89 interactions GloBI sur 4 types (connectance 14.1%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
89
Connectance
0.141
Patrimoniales
2
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°

13,2°C

Annual rain

1 021mm

Moisture idx (CMI)

-0,04

Runoff

410mm/an

PET

1 061mm

AET

663mm

Mean slope

12,0°

Water table

554cm

Forest

38%

Crops

38%

Urban

0%

Protected

0%

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