Ontologia

HydroBASINS lev08 watershed · #2080653900

Bassin de Rio Nabão

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 14 administrative regions : Abrantes, Alcanena, Alvaiázere, Ansião, Batalha +9

Pfafstetter: 23160202

Sub-basin area

1 043,1km²

Upstream area

1 043,3km²

Discharge

12,18m³/s

Mean elev.

217m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ribeiro da Gata26 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

14 dept-equivalent regions (GADM L2)

6 more
  • Batalha11.6 km² · 1.1%
  • Penela2.7 km² · 0.3%
  • Alcanena0.8 km² · 0.1%
  • Vila Nova da Barquinha0.5 km² · 0.0%
  • Abrantes0.0 km² · 0.0%
  • Soure0.0 km² · 0.0%

3 intersecting protected areas

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

Species present

2 854 distinct species · 126 723 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

126 723 obs · 27 cellules
Obs. / cellule
≥ 31 357
11 235–31 356
3 026–11 234
2 357–3 025
< 2 357

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 Nabão : 24 espèces reliées par 100 interactions GloBI sur 4 types (connectance 15.9%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
100
Connectance
0.159
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°

15,5°C

Annual rain

878mm

Moisture idx (CMI)

-0,15

Runoff

368mm/an

PET

1 040mm

AET

644mm

Mean slope

4,7°

Water table

243cm

Forest

87%

Crops

3%

Urban

2%

Protected

1%

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