Ontologia

HydroBASINS lev08 watershed · #2080620400

Bassin de Rio Varosa

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 8 administrative regions : Armamar, Castro Daire, Cinfães, Lamego, Moimenta da Beira +3

Pfafstetter: 23180134

Sub-basin area

315,6km²

Upstream area

315,8km²

Discharge

6,3m³/s

Mean elev.

775m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rio Douro617 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

8 dept-equivalent regions (GADM L2)

  • Lamego
    Viseu · Portugal
    124.7 km²
    39.5% of basin
  • Tarouca
    Viseu · Portugal
    97.7 km²
    30.9% of basin
  • Castro Daire
    Viseu · Portugal
    38.8 km²
    12.3% of basin
  • Moimenta da Beira
    Viseu · Portugal
    35.3 km²
    11.2% of basin
  • Armamar
    Viseu · Portugal
    9.7 km²
    3.1% of basin
  • Resende
    Viseu · Portugal
    5.1 km²
    1.6% of basin
  • Vila Nova de Paiva
    Viseu · Portugal
    2.4 km²
    0.8% of basin
  • Cinfães
    Viseu · Portugal
    2.4 km²
    0.8% of basin

1 intersecting protected areas

  • Montemuro

    IUCN Not Reported

    Site of Community Importance (Habitats Directive)

    79.78 km² overlap

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

Species present

1 878 distinct species · 69 612 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

69 612 obs · 9 cellules
Obs. / cellule
≥ 43 861
43 861–43 860
5 701–43 860
2 374–5 700
< 2 374

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

Ecological tissue

Sample of 32 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 Varosa : 22 espèces reliées par 87 interactions GloBI sur 6 types (connectance 17.5%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
87
Connectance
0.175
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°

12,0°C

Annual rain

1 337mm

Moisture idx (CMI)

0,26

Runoff

626mm/an

PET

969mm

AET

688mm

Mean slope

8,9°

Water table

403cm

Forest

78%

Crops

36%

Urban

2%

Protected

0%

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