HydroBASINS lev08 watershed · #2080011410
Bassin de Αλευράς-Νήσσα
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 2 administrative regions : Ionian Islands, West Greece
Sub-basin area
1 600,8km²
Upstream area
1 600,8km²
Discharge
7,02m³/s
Mean elev.
279m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 1103.7 km²68.9% of basin
- 381.0 km²23.8% of basin
27 intersecting protected areas
National Park - Peripheral zone
330.62 km² overlap
ESOTERIKO ARCHIPELAGOS IONIOU (MEGANISI, ARKOUDI, ATOKOS, VROMONAS)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
80.82 km² overlap
Wildlife Refugee
56.84 km² overlap
OROS TSEREKAS (AKARNANIKA)
IUCN Not ReportedSpecial Protection Area (Birds Directive)
51.17 km² overlap
Wildlife Refugee
39.99 km² overlap
Wildlife Refugee
35.38 km² overlap
LIMNI VOULKARIA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
32.66 km² overlap
LIMNES VOULKARIA KAI SALTINI
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
31.22 km² overlap
National Park
29.90 km² overlap
18 more protected areassorted by overlap area
AMVRAKIKOS KOLPOS, DELTA LOUROU KAI ARACHTHOU (PETRA, MYTIKAS, EVRYTERI PERIOCHI, KATO POUS ARACHTHOU, KAMPI FILIPPIADAS)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
23.05 km² overlap
LIMNI AMVRAKIA
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
22.28 km² overlap
LIMNI AMVRAKIA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
19.59 km² overlap
Nature reserve zone in National Park
18.96 km² overlap
Special Protection Area (Birds Directive)
16.87 km² overlap
Special Areas of Conservation (Habitats Directive)
16.87 km² overlap
PERIOCHI CHORTATON (LEFKADA)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.48 km² overlap
Others
10.94 km² overlap
Kantilia-Valti (Astakou)
IUCN IVWildlife Refugee
9.62 km² overlap
National Park
7.40 km² overlap
Nature reserve zone in National Park
7.11 km² overlap
DELTA ACHELOOU, LIMNOTHALASSA MESOLONGIOU - AITOLIKOU, EKVOLES EVINOU, NISOI ECHINADES, NISOS PETALAS
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.09 km² overlap
DELTA ACHELOOU, LIMNOTHALASSA MESOLONGIOU - AITOLIKOU KAI EKVOLES EVINOU, NISOI ECHINADES, NISOS PETALAS, DYTIKOS ARAKYNTHOS KAI STENA KLEISOURAS
IUCN Not ReportedSpecial Protection Area (Birds Directive)
7.09 km² overlap
National Park - Peripheral zone
3.71 km² overlap
Perioches Gyras kai Dimosari Lefkadas
IUCN Not AssignedOthers
1.18 km² overlap
Messolonghi lagoons
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.40 km² overlap
Absolute nature reserve zone in National Park
0.29 km² overlap
AMVRAKIKOS KOLPOS, LIMNOTHALASSA KATAFOURKO KAI KORAKONISIA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 367 distinct species · 47 462 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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 Αλευράς-Νήσσα : 29 espèces reliées par 106 interactions GloBI sur 5 types (connectance 10.7%, filtre Serrano α=0.2). 16 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°
15,8°C
Annual rain
993mm
Moisture idx (CMI)
-0,12
Runoff
525mm/an
PET
1 134mm
AET
645mm
Mean slope
11,4°
Water table
464cm
Forest
19%
Crops
23%
Urban
0%
Protected
32%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)