Ontologia

HydroBASINS lev08 watershed · #2080027050

Bassin de Rīva

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 : Kuldiga, Liepaja, Ventspils

Coastal basin 3% lakePfafstetter: 24270500

Sub-basin area

2 221,3km²

Upstream area

2 221,3km²

Discharge

4,09m³/s

Mean elev.

40m

Administrative coverage

3 dept-equivalent regions (GADM L2)

30 intersecting protected areas

  • Ziemupe

    IUCN IV

    Nature Reserve

    23.62 km² overlap

  • Ziemupe

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    23.62 km² overlap

  • Ziemupe

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    23.62 km² overlap

  • Grīņu dabas rezervāts

    IUCN Ib

    Strict Nature Reserve

    15.05 km² overlap

  • Grīņu dabas rezervāts

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    15.05 km² overlap

  • Užavas lejtece

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    14.34 km² overlap

  • Užavas lejtece

    IUCN II

    Nature Park

    14.34 km² overlap

  • Sārnates purvs

    IUCN IV

    Nature Reserve

    14.23 km² overlap

  • Sārnates purvs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    14.23 km² overlap

21 more protected areas

  • Sārnates purvs

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    14.23 km² overlap

  • Užava

    IUCN IV

    Nature Reserve

    13.80 km² overlap

  • Užava

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    13.80 km² overlap

  • Užava

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    13.80 km² overlap

  • Tosmare

    IUCN IV

    Nature Reserve

    9.90 km² overlap

  • Tosmare

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    9.90 km² overlap

  • Užavas augštece

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    6.88 km² overlap

  • Užavas augštece

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    6.88 km² overlap

  • Užavas augštece

    IUCN IV

    Nature Reserve

    6.88 km² overlap

  • Pūļa purvs

    IUCN IV

    Nature Reserve

    4.95 km² overlap

  • Akmensrags

    IUCN IV

    Baltic Sea Protected Area (HELCOM)

    2.28 km² overlap

  • Akmensrags

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    2.27 km² overlap

  • Akmensrags

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    2.27 km² overlap

  • Akmensrags

    IUCN IV

    Protected Marine Area

    2.27 km² overlap

  • Celmu ezera meži

    IUCN IV

    Nature Reserve

    2.27 km² overlap

  • Diļļu pļavas

    IUCN IV

    Nature Reserve

    1.74 km² overlap

  • Diļļu plavas

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.74 km² overlap

  • Sakas grīņi

    IUCN IV

    Nature Reserve

    1.71 km² overlap

  • Sakas grīņi

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.70 km² overlap

  • Pinku ezers

    IUCN II

    Nature Park

    1.61 km² overlap

  • Pinku ezers

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.61 km² overlap

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

Species present

1 413 distinct species · 9 812 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 812 obs · 77 cellules
Obs. / cellule
≥ 2 830
224–2 829
65–223
34–64
< 34

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 Rīva : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 52 interactions GloBI sur 2 types (connectance 14.8%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
52
Connectance
0.148
Patrimoniales
1
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°

6,4°C

Annual rain

690mm

Moisture idx (CMI)

0,21

Runoff

428mm/an

PET

548mm

AET

433mm

Mean slope

1,0°

Water table

60cm

Forest

50%

Crops

35%

Urban

1%

Protected

5%

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