Ontologia

HydroBASINS lev08 watershed · #7080042370

Bassin de Little Alligator 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 1 administrative regions : Tyrrell

Coastal basinPfafstetter: 73215030

Sub-basin area

424,2km²

Upstream area

424,2km²

Discharge

1,81m³/s

Mean elev.

8m

Administrative coverage

1 dept-equivalent regions (GADM L2)

9 intersecting protected areas

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

Species present

872 distinct species · 30 084 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

30 084 obs · 10 cellules
Obs. / cellule
≥ 19 264
19 264–19 263
2 957–19 263
651–2 956
< 651

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 Little Alligator River : 23 espèces reliées par 69 interactions GloBI sur 3 types (connectance 12.3%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
69
Connectance
0.123
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°

16,1°C

Annual rain

1 284mm

Moisture idx (CMI)

0,06

Runoff

438mm/an

PET

1 203mm

AET

1 004mm

Mean slope

0,6°

Water table

20cm

Forest

93%

Crops

38%

Urban

0%

Protected

32%

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