HydroBASINS lev08 watershed · #2080344840
Bassin de Skroda
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 3 administrative regions : Grajewo, Kolno, Łomża
Sub-basin area
428,3km²
Upstream area
428,3km²
Discharge
2,18m³/s
Mean elev.
142m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 426.8 km²99.2% of basin
- 2.9 km²0.7% of basin
- 0.3 km²0.1% of basin
5 intersecting protected areas
Równiny Kurpiowskiej i Doliny Dolnej Narwi
IUCN Not AssignedProtected Landscape Area
26.37 km² overlap
Uroczysko Dzierzbia
IUCN IVNature Reserve
0.72 km² overlap
Mokradła Kolneńskie i Kurpiowskie
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.57 km² overlap
Puszcza Piska
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.30 km² overlap
Sasanki w Kolimagach
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
749 distinct species · 1 622 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Skroda : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 88 interactions GloBI sur 5 types (connectance 11.9%, filtre Serrano α=0.2). 11 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°
6,8°C
Annual rain
591mm
Moisture idx (CMI)
-0,16
Runoff
161mm/an
PET
703mm
AET
497mm
Mean slope
1,2°
Water table
142cm
Forest
11%
Crops
61%
Urban
2%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)