Ontologia

HydroBASINS lev08 watershed · #7080642640

Bassin de Little Swan Creek

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 : Hickman, Lawrence, Lewis, Maury

Pfafstetter: 74262260

Sub-basin area

400,2km²

Upstream area

400,2km²

Discharge

5,17m³/s

Mean elev.

251m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Duck River151 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

1 049 distinct species · 11 481 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

11 481 obs · 11 cellules
Obs. / cellule
≥ 3 797
1 836–3 796
1 274–1 835
899–1 273
< 899

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

Ecological tissue

Sample of 43 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 Little Swan Creek : 34 espèces reliées par 87 interactions GloBI sur 4 types (connectance 8.8%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
45
Interactions affichées
87
Connectance
0.088
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°

14,0°C

Annual rain

1 402mm

Moisture idx (CMI)

0,06

Runoff

409mm/an

PET

1 319mm

AET

1 013mm

Mean slope

3,9°

Water table

218cm

Forest

97%

Crops

9%

Urban

0%

Protected

0%

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