Ontologia

HydroBASINS lev08 watershed · #2080302070

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 3 administrative regions : East Lothian, Midlothian, Scottish Borders

Pfafstetter: 23302807

Sub-basin area

691,8km²

Upstream area

2 169,4km²

Discharge

43,99m³/s

Mean elev.

261m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Eden Water366 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

27 intersecting protected areas

  • Moorfoot Hills

    IUCN IV

    Site of Special Scientific Interest

    54.43 km² overlap

  • Moorfoot Hills

    IUCN Not Reported

    Emerald Network

    51.15 km² overlap

  • Eildon and Leaderfoot

    IUCN Not Reported

    National Scenic Area

    38.79 km² overlap

  • River Tweed

    IUCN Not Reported

    Emerald Network

    4.65 km² overlap

  • River Tweed

    IUCN IV

    Site of Special Scientific Interest

    2.96 km² overlap

  • Lammer Law

    IUCN IV

    Site of Special Scientific Interest

    1.39 km² overlap

  • Fala Flow

    IUCN IV

    Site of Special Scientific Interest

    0.91 km² overlap

  • Fala Flow

    IUCN Not Reported

    Emerald Network

    0.91 km² overlap

  • Fala Flow

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    0.90 km² overlap

18 more protected areas

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

Species present

5 471 distinct species · 243 521 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

243 521 obs · 23 cellules
Obs. / cellule
≥ 36 040
24 379–36 039
9 981–24 378
7 638–9 980
< 7 638

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 120 interactions GloBI sur 6 types (connectance 17.1%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
120
Connectance
0.171
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°

7,2°C

Annual rain

890mm

Moisture idx (CMI)

0,34

Runoff

602mm/an

PET

582mm

AET

497mm

Mean slope

5,4°

Water table

278cm

Forest

1%

Crops

31%

Urban

2%

Protected

14%

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