Ontologia

HydroBASINS lev08 watershed · #2080000430

Bassin de נחל איילון

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 : Jerusalem, Nablus, Qalqilya, Ramallah and Al-Bireh, Salfit +1

Pfafstetter: 21101720

Sub-basin area

1 784,3km²

Upstream area

1 784,7km²

Discharge

12,24m³/s

Mean elev.

332m

Administrative coverage

6 dept-equivalent regions (GADM L2)

30 intersecting protected areas

21 more protected areas

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

Species present

4 221 distinct species · 737 680 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

737 680 obs · 43 cellules
Obs. / cellule
≥ 101 025
36 777–101 024
22 520–36 776
6 999–22 519
< 6 999

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

Ecological tissue

Sample of 37 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 נחל איילון : 30 espèces reliées par 74 interactions GloBI sur 5 types (connectance 11.1%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
74
Connectance
0.111
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°

19,0°C

Annual rain

547mm

Moisture idx (CMI)

-0,60

Runoff

214mm/an

PET

1 360mm

AET

461mm

Mean slope

6,3°

Water table

356cm

Forest

5%

Crops

54%

Urban

51%

Protected

1%

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