Ontologia

HydroBASINS lev08 watershed · #2080685220

Bassin de Ribeira de Canhestros

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 6 administrative regions : Aljustrel, Alvito, Beja, Cuba, Ferreira do Alentejo +1

2% lakePfafstetter: 23150066

Sub-basin area

572,6km²

Upstream area

572,6km²

Discharge

3,58m³/s

Mean elev.

122m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ribeira de Grândola632 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

6 dept-equivalent regions (GADM L2)

  • Ferreira do Alentejo
    Beja · Portugal
    429.5 km²
    75.0% of basin
  • Beja
    Beja · Portugal
    72.6 km²
    12.7% of basin
  • Cuba
    Beja · Portugal
    34.5 km²
    6.0% of basin
  • Alvito
    Beja · Portugal
    31.3 km²
    5.5% of basin
  • Santiago do Cacém
    Setúbal · Portugal
    3.3 km²
    0.6% of basin
  • Aljustrel
    Beja · Portugal
    1.7 km²
    0.3% of basin

1 intersecting protected areas

  • Cuba

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.83 km² overlap

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

Species present

1 089 distinct species · 92 806 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

92 806 obs · 15 cellules
Obs. / cellule
≥ 31 370
14 889–31 369
5 880–14 888
4 351–5 879
< 4 351

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

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Ribeira de Canhestros : 17 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 50 interactions GloBI sur 3 types (connectance 16.7%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
50
Connectance
0.167
Patrimoniales
2
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°

16,7°C

Annual rain

556mm

Moisture idx (CMI)

-0,54

Runoff

201mm/an

PET

1 201mm

AET

471mm

Mean slope

1,2°

Water table

136cm

Forest

21%

Crops

81%

Urban

0%

Protected

0%

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