HydroBASINS lev08 watershed · #2080352590

Bassin de Mławka

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 4 administrative regions : Działdowo, Mława, Nidzica, Żuromin

Pfafstetter: 24246008

Sub-basin area

595,4km²

Upstream area

595,5km²

Discharge

3,47m³/s

Mean elev.

139m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Wkra566 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

Mława
Mazowieckie · Poland
398.0 km²
66.6% of basin
Żuromin
Mazowieckie · Poland
101.3 km²
16.9% of basin
Działdowo
Warmińsko-Mazurskie · Poland
98.5 km²
16.5% of basin
Nidzica
Warmińsko-Mazurskie · Poland
0.0 km²
0.0% of basin

11 intersecting protected areas

Zieluńsko-Rzęgnowski
IUCN Not Assigned
Protected Landscape Area
221.48 km² overlap
Doliny Wkry i Mławki
IUCN Not Reported
Special Protection Area (Birds Directive)
110.13 km² overlap
Nadwkrzański
IUCN Not Assigned
Protected Landscape Area
5.37 km² overlap
Góra Dębowa koło Mławy
IUCN Not Reported
Site of Community Importance (Habitats Directive)
3.87 km² overlap
Baranie Góry
IUCN Not Reported
Site of Community Importance (Habitats Directive)
1.78 km² overlap
Baranie Góry
IUCN IV
Nature Reserve
1.78 km² overlap
Góra Dębowa
IUCN IV
Nature Reserve
1.64 km² overlap
Olszyny Rumockie
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.49 km² overlap
Olszyny Rumockie
IUCN IV
Nature Reserve
1.49 km² overlap

2 more protected areassorted by overlap area

Dolina Mławki
IUCN IV
Nature Reserve
1.49 km² overlap
Świńskie Bagno
IUCN IV
Nature Reserve
0.12 km² overlap

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

Species present

566 distinct species · 3 398 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 36 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Mławka : 24 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 98 interactions GloBI sur 4 types (connectance 14.7%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.147

Patrimoniales

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°

7,0°C

Annual rain

583mm

Moisture idx (CMI)

-0,17

Runoff

191mm/an

PET

703mm

AET

492mm

Mean slope

0,9°

Water table

88cm

Forest

Crops

53%

Urban

Protected

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