Ontologia

HydroBASINS lev08 watershed · #2080027220

Bassin de Grīva

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 across 2 countries : Ruhnu, Talsi

Coastal basinPfafstetter: 24270705

Sub-basin area

142km²

Upstream area

142km²

Discharge

1,25m³/s

Mean elev.

19m

Administrative coverage

2 dept-equivalent regions (GADM L2)

30 intersecting protected areas

21 more protected areas

  • Lake Engure

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    0.80 km² overlap

  • Engures ezers

    IUCN II

    Nature Park

    0.12 km² overlap

  • Engures ezers

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.12 km² overlap

  • Engures ezers

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.12 km² overlap

  • VEP nr.125034

    IUCN Not Assigned

    Woodland key habitat

    0.09 km² overlap

  • VEP nr.207648

    IUCN Not Assigned

    Woodland key habitat

    0.08 km² overlap

  • VEP nr.125026

    IUCN Not Assigned

    Woodland key habitat

    0.06 km² overlap

  • VEP nr.125025

    IUCN Not Assigned

    Woodland key habitat

    0.05 km² overlap

  • VEP nr.L01005

    IUCN Not Assigned

    Woodland key habitat

    0.03 km² overlap

  • VEP nr.125024

    IUCN Not Assigned

    Woodland key habitat

    0.03 km² overlap

  • VEP nr.207651

    IUCN Not Assigned

    Woodland key habitat

    0.03 km² overlap

  • VEP nr.125037

    IUCN Not Assigned

    Woodland key habitat

    0.03 km² overlap

  • VEP nr.213133

    IUCN Not Assigned

    Woodland key habitat

    0.03 km² overlap

  • VEP nr.207649

    IUCN Not Assigned

    Woodland key habitat

    0.02 km² overlap

  • VEP nr.125035

    IUCN Not Assigned

    Woodland key habitat

    0.02 km² overlap

  • VEP nr.207652

    IUCN Not Assigned

    Woodland key habitat

    0.02 km² overlap

  • VEP nr.125023

    IUCN Not Assigned

    Woodland key habitat

    0.02 km² overlap

  • VEP nr.207650

    IUCN Not Assigned

    Woodland key habitat

    0.02 km² overlap

  • VEP nr.125021

    IUCN Not Assigned

    Woodland key habitat

    0.01 km² overlap

  • VEP nr.125031

    IUCN Not Assigned

    Woodland key habitat

    0.01 km² overlap

  • VEP nr.125027

    IUCN Not Assigned

    Woodland key habitat

    0.01 km² overlap

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

Species present

282 distinct species · 877 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

877 obs · 3 cellules
Obs. / cellule
≥ 598
598–597
598–597
226–597
< 226

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

Ecological tissue

Sample of 32 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 Grīva : 24 espèces reliées par 70 interactions GloBI sur 4 types (connectance 14.1%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
70
Connectance
0.141
Patrimoniales
0
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°

6,2°C

Annual rain

630mm

Moisture idx (CMI)

0,12

Runoff

316mm/an

PET

557mm

AET

435mm

Mean slope

0,9°

Water table

48cm

Forest

92%

Crops

1%

Urban

0%

Protected

14%

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