HydroBASINS lev08 watershed · #2080012630
Bassin de Reka
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 27 administrative regions across 3 countries : Brtonigla, Buje, Buzet, Divaca, Gorizia +22
Sub-basin area
2 009,6km²
Upstream area
2 009,6km²
Discharge
3,94m³/s
Mean elev.
410m
Administrative coverage
27 dept-equivalent regions (GADM L2)
- 351.5 km²17.4% of basin
- 272.7 km²13.5% of basin
- Trieste252.5 km²12.5% of basin
- 185.7 km²9.2% of basin
- 140.9 km²7.0% of basin
- 102.9 km²5.1% of basin
- 91.9 km²4.6% of basin
- 83.3 km²4.1% of basin
19 moreFull L2 list
- Komen77.2 km² · 3.8%
- Pivka76.8 km² · 3.8%
- Gorizia61.4 km² · 3.0%
- Klana51.9 km² · 2.6%
- Miren-Kostanjevica35.1 km² · 1.7%
- Jelenje32.8 km² · 1.6%
- Piran27.8 km² · 1.4%
- Grožnjan26.0 km² · 1.3%
- Lanišće24.6 km² · 1.2%
- Izola24.3 km² · 1.2%
- Brtonigla22.8 km² · 1.1%
- Novigrad19.5 km² · 1.0%
- Čabar4.8 km² · 0.2%
- Matulji4.4 km² · 0.2%
- Čavle2.4 km² · 0.1%
- Buzet2.2 km² · 0.1%
- Oprtalj1.9 km² · 0.1%
- Nova Gorica1.6 km² · 0.1%
- Loška Dolina0.8 km² · 0.0%
30 intersecting protected areas
Kras
IUCN Not ReportedSpecial Protection Area (Birds Directive)
511.46 km² overlap
Kras
IUCN Not AssignedSpecialy Protected Area
511.46 km² overlap
Kras
IUCN Not AssignedSpecialy Protected Area
434.67 km² overlap
Kras
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
434.67 km² overlap
Snežnik - Pivka
IUCN Not AssignedSpecialy Protected Area
129.26 km² overlap
Snežnik - Pivka
IUCN Not ReportedSpecial Protection Area (Birds Directive)
129.26 km² overlap
Aree Carsiche della Venezia Giulia
IUCN Not ReportedSpecial Protection Area (Birds Directive)
116.76 km² overlap
Javorniki - Snežnik
IUCN Not AssignedSpecialy Protected Area
93.26 km² overlap
Javorniki - Snežnik
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
93.26 km² overlap
21 more protected areassorted by overlap area
Carso Triestino e Goriziano
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
91.33 km² overlap
Gorski kotar i sjeverna Lika
IUCN Not ReportedSpecial Protection Area (Birds Directive)
71.48 km² overlap
Gorski kotar i sjeverna Lika
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
70.26 km² overlap
Slovenska Istra
IUCN Not AssignedSpecialy Protected Area
52.49 km² overlap
Slovenska Istra
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
52.49 km² overlap
Učka i Ćićarija
IUCN Not ReportedSpecial Protection Area (Birds Directive)
26.71 km² overlap
Matarsko podolje
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
20.88 km² overlap
Matarsko podolje
IUCN Not AssignedSpecialy Protected Area
20.88 km² overlap
Dolina Reke
IUCN Not ReportedSpecial Protection Area (Birds Directive)
18.66 km² overlap
Dolina Reke
IUCN Not AssignedSpecialy Protected Area
18.66 km² overlap
Dolina Branice
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.45 km² overlap
Dolina Branice
IUCN Not AssignedSpecialy Protected Area
12.45 km² overlap
Zabiče
IUCN Not AssignedSpecialy Protected Area
8.04 km² overlap
Zabiče
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.04 km² overlap
Regional/Provincial Nature Reserve
7.81 km² overlap
Regional/Provincial Nature Reserve
7.37 km² overlap
Zatreb-planinc
IUCN Not AssignedSpecial Purpose Forest
6.55 km² overlap
Secoveljske soline (Secovlje salt pans)
IUCN Not ReportedWetland of International Importance (Ramsar Site)
6.13 km² overlap
Reka
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.41 km² overlap
Reka
IUCN Not AssignedSpecialy Protected Area
4.41 km² overlap
Akvatorij zapadne Istre
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.38 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 217 distinct species · 274 338 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Reka : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 66 interactions GloBI sur 3 types (connectance 10.5%, 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).
Hydroclimate (BasinATLAS lev08)
Mean T°
11,6°C
Annual rain
1 212mm
Moisture idx (CMI)
0,34
Runoff
834mm/an
PET
796mm
AET
709mm
Mean slope
7,4°
Water table
274cm
Forest
64%
Crops
6%
Urban
10%
Protected
45%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)