Ontologia

HydroBASINS lev08 watershed · #7080744040

Bassin de Pearl 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 7 administrative regions : Jefferson Davis, Lamar, Lawrence, Marion, Pearl River +2

3% lakePfafstetter: 74100633

Sub-basin area

2 497,4km²

Upstream area

16 388,9km²

Discharge

289,88m³/s

Mean elev.

87m

Administrative coverage

Hydrographic chain

Drains into

Receives from 2 basins

7 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

2 124 distinct species · 29 899 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

29 899 obs · 67 cellules
Obs. / cellule
≥ 8 899
1 041–8 898
204–1 040
129–203
< 129

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

Ecological tissue

Sample of 42 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 Pearl River : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 82 interactions GloBI sur 5 types (connectance 9.5%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
82
Connectance
0.095
Patrimoniales
2
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°

18,7°C

Annual rain

1 572mm

Moisture idx (CMI)

0,07

Runoff

611mm/an

PET

1 463mm

AET

1 171mm

Mean slope

1,3°

Water table

77cm

Forest

93%

Crops

10%

Urban

0%

Protected

1%

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