Ontologia

HydroBASINS lev08 watershed · #7080285600

Bassin de Birch River

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 : Division No. 1

5% lakePfafstetter: 71224164

Sub-basin area

1 439,1km²

Upstream area

1 439,1km²

Discharge

5,32m³/s

Mean elev.

325m

Administrative coverage

Hydrographic chain

Drains into

Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

8 intersecting protected areas

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

Species present

779 distinct species · 12 944 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

12 944 obs · 33 cellules
Obs. / cellule
≥ 3 151
990–3 150
261–989
22–260
< 22

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

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

Indicateurs du tissu écologique

Tissu écologique de Bassin de Birch River : 23 espèces reliées par 78 interactions GloBI sur 4 types (connectance 11.7%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
78
Connectance
0.117
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°

2,0°C

Annual rain

547mm

Moisture idx (CMI)

-0,25

Runoff

117mm/an

PET

730mm

AET

468mm

Mean slope

0,2°

Water table

2cm

Forest

53%

Crops

2%

Urban

0%

Protected

1%

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