Rāznas Nacionālais parks
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2004
596 km²
District · LVA
Ludza
Latvia
DfbCold, no dry season, warm summer(100 %)
Species observed
1 071
Observations
3 307
Area
2 569,6km²
Ecological tissue
Sample of 30 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 Ludza : 21 espèces reliées par 78 interactions GloBI sur 4 types (connectance 17.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
30
Interactions affichées
78
Connectance
0.179
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 071 distinct species · 3 307 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
6,0°C
Annual rain
672mm
Warmest m°
21,7°C
Coldest m°
-8,2°C
Elevation: 133 m on average (min 93 m, max 221 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
6,0°C
Annual rain
672mm
Warmest month
21,7°C
Coldest month
-8,2°C
Mean alt.
133m
Min
93m
Max
221m
Std. dev.
26m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(100 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,0
Org. C
89,1g/kg
Clay
15,4%
Sand
51,2%
Silt
33,4%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,9
Org. C
120,6g/kg
Clay
15,3%
Sand
50,4%
Silt
34,3%
5–15 cm
pH H₂O
6,1
Org. C
88,2g/kg
Clay
14,8%
Sand
51,8%
Silt
33,4%
15–30 cm
pH H₂O
6,0
Org. C
58,6g/kg
Clay
16,1%
Sand
51,6%
Silt
32,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest46.2%
Crops28.6%
Built-up0.1%
Bare soil0.1%
Other (grassland, water…)25.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology12 basins · 50 lakes · 43 rivers
Hydrology metrics for this exact territory
Stream length here
508,0km
Lake surface here
54,70km²
Basins crossed
12
Max stream order
4
Max drainage
2 042km²
Discharge in basins
23,2m³/s
Mean precip.
636mm/an
Mean T°
5,0°C
Moisture idx
0,02
Max snow
35%
Mean runoff
224mm/an
Mean elev. (basins)
123m
Watersheds crossing here
- Bassin de Синяяsub-area2 041,8 km²overlap757.79 km²29%
- Bassin de Утрояsub-area1 262,5 km²overlap548.72 km²21%
- Bassin de Ludza / Лжаsub-area448,5 km²overlap350.81 km²14%
- Bassin de Ičasub-area1 128,6 km²overlap339.56 km²13%
- Bassin de Leidiukšņasub-area158,5 km²overlap159.22 km²6%
- Bassin de Kiudolicasub-area198 km²overlap153.90 km²6%
- Bassin de Paborgasub-area131,1 km²overlap124.49 km²5%
- Bassin de Sarjankasub-area1 043,5 km²overlap104.02 km²4%
- Bassin de Rēzeknesub-area1 087,8 km²overlap17.83 km²1%
Lakes (50, top by area)
- Cirma Ezersarea11,8 km²avg depth4.5 m
- Lielais Ludzas Ezersarea7,3 km²avg depth3.3 m
- Nierzas Ezersarea5 km²avg depth6.0 m
- Plusonsarea4,5 km²avg depth4.6 m
- Pitelisarea3,5 km²avg depth3.1 m
- Istras Ezersarea2,9 km²avg depth4.0 m
- Šķaunes Ezersarea2,3 km²avg depth4.7 m
- Pildas Ezersarea1,9 km²avg depth3.1 m
- Zilezersarea1,9 km²avg depth4.1 m
41 more lakes
- Bižas Ezersarea1,3 km²avg depth4.4 m
- Kurijānovas Ezersarea1,2 km²avg depth4.5 m
- Dukanu Ezersarea1,2 km²avg depth3.3 m
- Bižu Ezersarea1,2 km²avg depth2.1 m
- Zviergzdines Ezersarea1,1 km²avg depth3.2 m
- Lac 1308758area0,8 km²avg depth3.6 m
- Lac 1308331area0,8 km²avg depth4.1 m
- Lac 1307482area0,7 km²avg depth2.7 m
- Lac 1306379area0,7 km²avg depth4.3 m
- Lac 1308199area0,7 km²avg depth4.5 m
- Lac 1309241area0,7 km²avg depth2.8 m
- Lac 1307990area0,6 km²avg depth4.0 m
- Lac 1307844area0,5 km²avg depth2.6 m
- Lac 1307816area0,4 km²avg depth2.8 m
- Lac 1309383area0,4 km²avg depth3.1 m
- Lac 1308535area0,4 km²avg depth5.1 m
- Lac 1308163area0,4 km²avg depth3.3 m
- Lac 1307930area0,4 km²avg depth2.9 m
- Lac 1306799area0,4 km²avg depth2.2 m
- Lac 1307505area0,3 km²avg depth2.9 m
- Lac 1307463area0,3 km²avg depth2.3 m
- Lac 1307669area0,3 km²avg depth2.1 m
- Lac 1307954area0,3 km²avg depth3.4 m
- Lac 1308716area0,3 km²avg depth3.4 m
- Lac 1309688area0,3 km²avg depth3.6 m
- Lac 1308410area0,3 km²avg depth3.0 m
- Lac 1308426area0,3 km²avg depth3.7 m
- Lac 1306949area0,3 km²avg depth2.7 m
- Lac 1309707area0,3 km²avg depth3.2 m
- Lac 1307584area0,2 km²avg depth3.0 m
- Lac 1308200area0,2 km²avg depth2.1 m
- Lac 1308834area0,2 km²avg depth2.6 m
- Lac 1308318area0,2 km²avg depth2.8 m
- Lac 1308412area0,2 km²avg depth2.8 m
- Lac 1307345area0,2 km²avg depth2.0 m
- Lac 1307672area0,2 km²avg depth2.7 m
- Lac 1307198area0,2 km²avg depth2.5 m
- Lac 1308510area0,2 km²avg depth4.4 m
- Lac 1309257area0,2 km²avg depth2.9 m
- Lac 1307510area0,2 km²avg depth3.2 m
- Lac 1308644area0,2 km²avg depth2.2 m
Rivers / streams (43, ord ≥ 4)
- Rītupeord 3len here53.80 km82%total65 km
- Istraord 3len here51.99 km100%total52 km
- Ludza / Лжаord 3len here28.83 km81%total36 km
- Aunejaord 2len here22.10 km100%total22 km
- Paborgaord 2len here20.29 km95%total21 km
- Rūbežneicaord 1len here20.29 km100%total20 km
- Ludzaord 3len here19.31 km100%total19 km
- Kiudolicaord 2len here18.90 km88%total22 km
- Istalsnaord 2len here17.87 km100%total18 km
- Ičaord 4len here16.33 km24%total67 km
- Zilupeord 4len here15.82 km100%total16 km
- Leidiukšņaord 2len here13.53 km100%total14 km
31 more river segmentssorted by Strahler order + length
- Rūbeža / Рубежord 2len here13.24 km94%total14 km
- Solas-Ruskulovas strautsord 2len here12.35 km88%total14 km
- Plisunkaord 2len here11.82 km88%total13 km
- Verbovkaord 1len here11.13 km100%total11 km
- Rītupe / Утрояord 3len here10.80 km98%total11 km
- Zilupe / Синяяord 4len here9.78 km78%total12 km
- Ījovkas upīteord 3len here8.67 km100%total9 km
- Šņitkaord 3len here8.34 km100%total8 km
- Nalogu strautsord 2len here8.24 km100%total8 km
- Jučovas strautsord 4len here8.14 km100%total8 km
- Sarjankaord 3len here8.07 km21%total38 km
- Pildaord 3len here7.87 km100%total8 km
- Plītnīcaord 2len here7.67 km100%total8 km
- Zušupeord 1len here7.54 km100%total8 km
- Šņitkaord 1len here7.50 km100%total7 km
- Gaveiku upīteord 2len here7.49 km100%total7 km
- Aglonkaord 2len here7.09 km100%total7 km
- Kūkovaord 3len here6.86 km39%total18 km
- Zilupe / Сінюхаord 1len here6.32 km73%total9 km
- Pūdupeord 1len here6.23 km100%total6 km
- Divkšaord 1len here6.09 km100%total6 km
- Djatlovkas grāvisord 1len here5.45 km100%total5 km
- Kondrotu upīteord 3len here4.27 km100%total4 km
- Undupeiteord 1len here3.94 km51%total8 km
- Ilžaord 2len here3.74 km100%total4 km
- Daukstu strautsord 3len here3.63 km100%total4 km
- Утрояord 6len here2.76 km2%total123 km
- Pernovka / Перновкаord 4len here1.62 km101%total2 km
- Soltupeiteord 1len here1.32 km100%total1 km
- Tilžaord 2len here0.56 km2%total29 km
- Križutu upīteord 1len here0.40 km10%total4 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,1nW
Built-up
10,0%
Pesticides
7,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas49
IUCN Not Reported · 19IUCN IV · 18IUCN III · 7IUCN II · 5
Rāznas Nacionālais parks
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2022
596 km²
Rāznas Nacionālais parks
IUCN IINational Park · 2004
596 km²
Sebezhskij
IUCN IINational Park · 1996
511 km²
Osveiski
IUCN IVWetland of International Importance (Ramsar Site) · 2002
306 km²
Osveyskiy
IUCN IVNature Sanctuary or Partial Reserve · 1960
227 km²
Complete list49 protected areas
- Rāznas Nacionālais parksSpecial Protection Area (Birds Directive)IUCN Not Reported2004596 km²
- Rāznas Nacionālais parksSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2022596 km²
- Rāznas Nacionālais parksNational ParkIUCN II2004596 km²
- SebezhskijNational ParkIUCN II1996511 km²
- OsveiskiWetland of International Importance (Ramsar Site)IUCN IV2002306 km²
- OsveyskiyNature Sanctuary or Partial ReserveIUCN IV1960227 km²
- Klešniku purvsNature ReserveIUCN IV197733 km²
- Klešniku purvsSpecial Protection Area (Birds Directive)IUCN Not Reported200433 km²
- Klešniku purvsSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported202233 km²
- Kreiču purvsNature ReserveIUCN IV199923 km²
- Kreiču purvsSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported202223 km²
- Gulbju un Platpirovas purvsSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported202220 km²
- Gulbju un Platpirovas purvsSpecial Protection Area (Birds Directive)IUCN Not Reported200420 km²
- Gulbju un Platpirovas purvsNature ReserveIUCN IV197720 km²
- Dūkšupes mežiNature ReserveIUCN IV202310 km²
- Numernes valnisSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported202210 km²
- Numernes valnisNature ParkIUCN II200410 km²
- Istras pauguraineSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20229 km²
- Istras pauguraineSpecial Protection Area (Birds Directive)IUCN Not Reported20049 km²
- Istras pauguraineNature ParkIUCN II19779 km²
- Zaborovjes ezera purvs un mežiNature ReserveIUCN IV20237 km²
- Pildas ezersNature ReserveIUCN IV19776 km²
- Pildas ezersSpecial Protection Area (Birds Directive)IUCN Not Reported20046 km²
- Pildas ezersSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20226 km²
- Istras ezersSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20223 km²
- Istras ezersNature ReserveIUCN IV19773 km²
- Strodu strauta staignāju mežiNature ReserveIUCN IV20233 km²
- Kurjanovas ezersSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20223 km²
- Kurjanovas ezersNature ParkIUCN II20043 km²
- GrebļukalnsNature ReserveIUCN IV19572 km²
- GrebļukalnsSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20222 km²
- Zilupes mežiNature ReserveIUCN IV20232 km²
- Gulbinkas purvsNature ReserveIUCN IV19771 km²
- Gulbinkas purvsSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20221 km²
- Istras staignāju mežiNature ReserveIUCN IV20231 km²
- Ladas upes staignāju mežiNature ReserveIUCN IV20230 km²
- Mežamatveju pļavasMicro-reserveIUCN IV20040 km²
- Mežamatveju pļavasSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20220 km²
- Rundānu Valna dūbeNature MonumentIUCN III19770 km²
- Runtortas parksNature MonumentIUCN III20010 km²
- Mežamatveju kadiķu pļavasSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20220 km²
- Mežamatveju kadiķu pļavasMicro-reserveIUCN IV20040 km²
- Mežvidu parksNature MonumentIUCN III20010 km²
- Gomeļmuižas parksNature MonumentIUCN III20010 km²
- Dongu Valna dūbeNature MonumentIUCN III19770 km²
- Zvirgzdenes ezera salasNature ReserveIUCN IV19250 km²
- Zvirgzdenes ezera salasSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20220 km²
- Ozupienes parksNature MonumentIUCN III20010 km²
- Ruskulovas lapegļu alejaNature MonumentIUCN III20050 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN