Ontologia

HydroBASINS lev08 watershed · #2080286000

Bassin de Leidiukšņa

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 1 administrative regions : Ludza

63% lakePfafstetter: 24296768

Sub-basin area

158,5km²

Upstream area

158,5km²

Discharge

1,12m³/s

Mean elev.

162m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Pilda6 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

101 distinct species · 135 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

135 obs · 6 cellules
Obs. / cellule
≥ 77
77–76
22–76
17–21
< 17

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

Ecological tissue

Sample of 27 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 Leidiukšņa : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 45 interactions GloBI sur 3 types (connectance 12.8%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
45
Connectance
0.128
Patrimoniales
2
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°

4,9°C

Annual rain

642mm

Moisture idx (CMI)

0,03

Runoff

223mm/an

PET

624mm

AET

481mm

Mean slope

1,3°

Water table

95cm

Forest

15%

Crops

20%

Urban

0%

Protected

4%

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