Ontologia

HydroBASINS lev08 watershed · #2080619250

Bassin de Rio Ovelha

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 : Amarante, Baião, Marco de Canaveses, Vila Real

Pfafstetter: 23180122

Sub-basin area

196km²

Upstream area

196km²

Discharge

4,83m³/s

Mean elev.

526m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rio Tâmega211 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Alvão / Marão

    IUCN Not Reported

    Site of Community Importance (Habitats Directive)

    67.16 km² overlap

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

Species present

824 distinct species · 13 272 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

13 272 obs · 4 cellules
Obs. / cellule
≥ 5 198
5 198–5 197
3 794–5 197
3 794–3 793
< 3 794

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

Ecological tissue

Sample of 33 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 Ovelha : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 77 interactions GloBI sur 7 types (connectance 14.6%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
77
Connectance
0.146
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°

13,1°C

Annual rain

1 276mm

Moisture idx (CMI)

0,20

Runoff

773mm/an

PET

1 006mm

AET

705mm

Mean slope

12,4°

Water table

483cm

Forest

92%

Crops

12%

Urban

5%

Protected

0%

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