Ontologia

HydroBASINS lev08 watershed · #7080626530

Bassin de Meherrin 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 4 administrative regions : Greensville, Hertford, Northampton, Southampton

Pfafstetter: 73212043

Sub-basin area

816,1km²

Upstream area

3 547,3km²

Discharge

47,47m³/s

Mean elev.

27m

Administrative coverage

Hydrographic chain

Drains into

Receives from 2 basins

4 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

810 distinct species · 22 646 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

22 646 obs · 24 cellules
Obs. / cellule
≥ 14 211
1 070–14 210
590–1 069
220–589
< 220

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

Ecological tissue

Sample of 39 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 Meherrin River : 30 espèces reliées par 83 interactions GloBI sur 4 types (connectance 10.6%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
83
Connectance
0.106
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°

14,7°C

Annual rain

1 163mm

Moisture idx (CMI)

-0,08

Runoff

464mm/an

PET

1 258mm

AET

946mm

Mean slope

0,7°

Water table

26cm

Forest

71%

Crops

38%

Urban

0%

Protected

0%

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