Ontologia

HydroBASINS lev08 watershed · #2080299390

Bassin de River Tweed

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 : NA, Scottish Borders

Pfafstetter: 23302803

Sub-basin area

89,5km²

Upstream area

4 433,1km²

Discharge

81,71m³/s

Mean elev.

48m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de River Tweed30 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

2 499 distinct species · 23 744 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

23 744 obs · 3 cellules
Obs. / cellule
≥ 10 740
10 740–10 739
10 740–10 739
9 854–10 739
< 9 854

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

Ecological tissue

Sample of 34 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 River Tweed : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 115 interactions GloBI sur 5 types (connectance 17.3%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
115
Connectance
0.173
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°

8,3°C

Annual rain

710mm

Moisture idx (CMI)

0,16

Runoff

471mm/an

PET

598mm

AET

477mm

Mean slope

1,4°

Water table

76cm

Forest

0%

Crops

78%

Urban

0%

Protected

2%

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