Site of Community Importance (Habitats Directive) · prt
Alvão / Marão
- Area
- 588 km²
- IUCN cat.
- Not Reported
- Year
- 2008
Overview
- Designation
- Site of Community Importance (Habitats Directive)
- Established
- 2008
- Managing authority
- See European Environment Agency Geospatial Data Catalogue for more information - https://sdi.eea.europa.eu/catalogue/srv/api/records/be2142b0-7dc4-42e3-afac-f7cc5f1a9ac6
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
2 392 distinct species · 119 056 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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).
Indicateurs du tissu écologique
Tissu écologique de Alvão / Marão : 16 espèces reliées par 63 interactions GloBI sur 4 types (connectance 21.0%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology10 basins · 2 lakes · 36 rivers
Hydrology metrics for this exact territory
Stream length here
156,7km
Lake surface here
0,33km²
Basins crossed
10
Max stream order
7
Max drainage
91 973km²
Discharge in basins
205,5m³/s
Mean precip.
1 249mm/an
Mean T°
12,7°C
Moisture idx
0,18
Max snow
4%
Mean runoff
708mm/an
Mean elev. (basins)
606m
Watersheds crossing here
- Bassin de Rio Corgosub-area466,7 km²overlap208.67 km²36%
- Bassin de Rio Olosub-area514,1 km²overlap153.75 km²26%
- Bassin de Rio Poiosub-area238,3 km²overlap110.00 km²19%
- Bassin de Rio Ovelhasub-area196 km²overlap67.16 km²11%
- Bassin de Rio Dourosub-area617,1 km²overlap25.84 km²4%
- Bassin de Rio Tâmegasub-area999,2 km²overlap16.71 km²3%
- Bassin de Rio Tortosub-area597,2 km²overlap4.93 km²1%
- Bassin de Rio Dourosub-area351,4 km²overlap0.42 km²0%
- Bassin de Rio Tinhelasub-area431,8 km²overlap0.10 km²0%
1 more basinssorted by overlap
Lakes (2, top by area)
Rivers / streams (36, ord ≥ 4)
- Rio Corgoord 4len here27.24 km64%total42 km
- Rio Oloord 3len here17.74 km71%total25 km
- Ribeiro de Vila Covaord 2len here14.28 km100%total14 km
- Rio Cabrilord 7len here9.80 km44%total22 km
- Rio das Bojasord 1len here9.79 km72%total14 km
- Rio Marãoord 2len here7.78 km100%total8 km
- Rio Torno (braço sasonal)ord 1len here7.07 km100%total7 km
- Ribeiro da Lamelaord 3len here6.64 km73%total9 km
- Rio Poioord 2len here5.80 km52%total11 km
- Túnel de Aduçãoord 2len here5.79 km100%total6 km
- Rio Ovelhaord 2len here4.94 km25%total20 km
- Rio do Siãoord 1len here4.18 km100%total4 km
24 more river segmentssorted by Strahler order + length
- Levada de Água de Agunchosord 2len here3.72 km33%total11 km
- Ribeira de Fervença ou da Póvoaord 1len here3.66 km100%total4 km
- Rio Tanhaord 4len here3.49 km20%total18 km
- Ribeira da Bejaord 1len here2.20 km92%total2 km
- Ribeira de Vila Chãord 2len here2.08 km40%total5 km
- Ribeira de Ramalhosoord 1len here2.03 km100%total2 km
- Ribeira das Boucinhasord 1len here1.92 km100%total2 km
- Rio Tornoord 1len here1.91 km100%total2 km
- Rio Teixeiraord 7len here1.82 km12%total15 km
- Ribeira de Fervençaord 1len here1.80 km100%total2 km
- Rio Douroord 7len here1.60 km1%total184 km
- Ribeira do Mezioord 1len here1.45 km100%total1 km
- Ribeiro do Azevinheiroord 1len here1.34 km100%total1 km
- Ribeira de Soutoord 1len here1.22 km100%total1 km
- Rio Cabrãoord 1len here1.05 km90%total1 km
- Ribeiro da Mãe de Águaord 1len here0.87 km100%total1 km
- Ribeiro de Viduedoord 1len here0.87 km100%total1 km
- Ribeiro da Assureiraord 2len here0.87 km79%total1 km
- Ribeiro Alto das Verejasord 1len here0.61 km52%total1 km
- Levada de Piscaredoord 2len here0.46 km33%total1 km
- Ribeira de Sermanhaord 1len here0.37 km4%total9 km
- Ribeiro do Paulord 1len here0.29 km8%total3 km
- Ribeira de Arnalord 2len here0.06 km1%total7 km
- Rio Varosaord 3len here≈ tangenttotal30 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 41.35744, -7.84447
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.