Ontologia

HydroBASINS lev08 watershed · #7080044600

Bassin de Chatam 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 2 administrative regions : Collier, Monroe

48% lakePfafstetter: 73257340

Sub-basin area

586,2km²

Upstream area

586,2km²

Discharge

5,74m³/s

Mean elev.

5m

Administrative coverage

2 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

1 164 distinct species · 30 277 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

30 277 obs · 18 cellules
Obs. / cellule
≥ 15 944
6 555–15 943
700–6 554
230–699
< 230

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

Ecological tissue

Sample of 51 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 Chatam River : 41 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 70 interactions GloBI sur 4 types (connectance 5.5%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
51
Interactions affichées
70
Connectance
0.055
Patrimoniales
3
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°

23,5°C

Annual rain

1 316mm

Moisture idx (CMI)

-0,13

Runoff

406mm/an

PET

1 514mm

AET

1 103mm

Mean slope

0,1°

Water table

8cm

Forest

0%

Crops

0%

Urban

0%

Protected

44%

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