HydroBASINS lev08 watershed · #2080094380
Bassin de Gacka
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 : Brinje, Otočac, Perušić, Plitvička Jezera, Senj +1
Sub-basin area
772,1km²
Upstream area
772,1km²
Discharge
8,52m³/s
Mean elev.
750m
Administrative coverage
6 dept-equivalent regions (GADM L2)
- 420.0 km²54.3% of basin
- 171.8 km²22.2% of basin
- 93.5 km²12.1% of basin
- 45.2 km²5.8% of basin
- 33.7 km²4.4% of basin
- 9.6 km²1.2% of basin
24 intersecting protected areas
Velebit Mountain
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
148.07 km² overlap
Velebit
IUCN Not ReportedSpecial Protection Area (Birds Directive)
148.06 km² overlap
Velebit
IUCN Not ReportedNature Park
147.97 km² overlap
Park prirode Velebit
IUCN Not ReportedSite of Community Importance (Habitats Directive)
130.06 km² overlap
Lička krška polja
IUCN Not ReportedSpecial Protection Area (Birds Directive)
84.59 km² overlap
Gacko polje
IUCN Not ReportedSite of Community Importance (Habitats Directive)
68.70 km² overlap
Gorski kotar i sjeverna Lika
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
31.00 km² overlap
Gorski kotar i sjeverna Lika
IUCN Not ReportedSpecial Protection Area (Birds Directive)
31.00 km² overlap
Nacionalni park Plitvička jezera
IUCN Not ReportedSite of Community Importance (Habitats Directive)
28.24 km² overlap
15 more protected areassorted by overlap area
NP Plitvička jezera
IUCN Not ReportedSpecial Protection Area (Birds Directive)
28.24 km² overlap
Plitvice Lakes National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
28.23 km² overlap
Plitvička jezera
IUCN Not ReportedNational Park
28.23 km² overlap
Nacionalni park Sjeverni Velebit
IUCN Not ReportedSite of Community Importance (Habitats Directive)
18.01 km² overlap
Sjeverni Velebit
IUCN Not ReportedNational Park
17.96 km² overlap
Vrhovinsko polje
IUCN Not ReportedSite of Community Importance (Habitats Directive)
15.89 km² overlap
Crni vrh kod Vrhovina
IUCN Not ReportedSite of Community Importance (Habitats Directive)
14.06 km² overlap
Ancient and Primeval Beech Forests of the Carpathians and Other Regions of Europe
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
10.42 km² overlap
Hajdučki i Rožanski kukovi
IUCN Not ReportedStrict Reserve
9.56 km² overlap
Gacko polje
IUCN Not ReportedSignificant Landscape
5.22 km² overlap
Zavižan-Balinovac-Zavižanska kosa
IUCN Not ReportedSpecial Reserve
0.18 km² overlap
Vrela Gacke
IUCN Not ReportedNatural Monument
0.04 km² overlap
Velebitski botanički vrt
IUCN Not ReportedHorticultural Monument
0.03 km² overlap
Pećina
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.01 km² overlap
Lasića špilja
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 332 distinct species · 4 262 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Gacka : 26 espèces reliées par 88 interactions GloBI sur 5 types (connectance 12.5%, filtre Serrano α=0.2). 12 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°
8,4°C
Annual rain
1 334mm
Moisture idx (CMI)
0,41
Runoff
973mm/an
PET
784mm
AET
686mm
Mean slope
10,0°
Water table
349cm
Forest
67%
Crops
15%
Urban
1%
Protected
23%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)