Ontologia

HydroBASINS lev08 watershed · #2080022250

Bassin de la Scie

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 : Seine-Maritime

Coastal basinPfafstetter: 23250105

Sub-basin area

788,3km²

Upstream area

788,3km²

Discharge

2,93m³/s

Mean elev.

102m

Administrative coverage

1 dept-equivalent regions (GADM L2)

153 communes (GADM L5)

10 intersecting protected areas

  • Littoral Cauchois

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    14.16 km² overlap

  • Littoral Cauchois

    IUCN Not Reported

    Marine Protected Area (OSPAR)

    10.49 km² overlap

  • Littoral seino-marin

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    1.38 km² overlap

  • Bois de bernouville - vallee de la scie

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    1.19 km² overlap

  • Cap d\'ailly

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    0.83 km² overlap

  • Vallee de la saâne

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    0.64 km² overlap

  • Cap D\'Ailly

    IUCN IV

    Biotope Protection Order

    0.49 km² overlap

  • Vallee du dun

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    0.17 km² overlap

  • Saint leger hameau

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    0.06 km² overlap

1 more protected areas

  • Pont Rouge

    IUCN IV

    Biotope Protection Order

    0.05 km² overlap

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

Species present

5 475 distinct species · 266 490 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

266 490 obs · 38 cellules
Obs. / cellule
≥ 45 194
10 797–45 193
7 451–10 796
5 415–7 450
< 5 415

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

Ecological tissue

Sample of 25 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 la Scie : 9 espèces reliées par 259 interactions GloBI sur 5 types (connectance 16.2%, filtre Serrano α=0.2). 48 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
57
Interactions affichées
259
Connectance
0.162
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°

10,3°C

Annual rain

711mm

Moisture idx (CMI)

-0,06

Runoff

619mm/an

PET

756mm

AET

540mm

Mean slope

1,9°

Water table

99cm

Forest

1%

Crops

51%

Urban

1%

Protected

0%

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