Ontologia

HydroBASINS lev08 watershed · #2080640670

Bassin de Rio Arunca

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 : Ansião, Condeixa-a-Nova, Figueira da Foz, Leiria, Montemor-o-Velho +3

Pfafstetter: 23170062

Sub-basin area

562,3km²

Upstream area

562,5km²

Discharge

8,04m³/s

Mean elev.

148m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rio Pranto356 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

8 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Sicó / Alvaiázere

    IUCN Not Reported

    Site of Community Importance (Habitats Directive)

    56.67 km² overlap

  • Paúl de Madriz

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    2.43 km² overlap

  • Paul da Madriz

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.89 km² overlap

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

Species present

2 688 distinct species · 52 120 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

52 120 obs · 15 cellules
Obs. / cellule
≥ 19 537
5 750–19 536
2 978–5 749
1 988–2 977
< 1 988

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

Ecological tissue

Sample of 36 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 Arunca : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 93 interactions GloBI sur 5 types (connectance 14.8%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
93
Connectance
0.148
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°

15,5°C

Annual rain

913mm

Moisture idx (CMI)

-0,11

Runoff

460mm/an

PET

1 023mm

AET

657mm

Mean slope

4,7°

Water table

282cm

Forest

79%

Crops

14%

Urban

2%

Protected

0%

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