Ontologia

HydroBASINS lev08 watershed · #6080756630

Bassin de arroyo Chacalnika

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 : Bella Vista, Concepción

Pfafstetter: 64245588

Sub-basin area

2 400,9km²

Upstream area

2 400,9km²

Discharge

19,49m³/s

Mean elev.

207m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Río Aquidabán1297 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

422 distinct species · 1 592 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 592 obs · 49 cellules
Obs. / cellule
≥ 327
94–326
30–93
11–29
< 11

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

Ecological tissue

Sample of 28 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 arroyo Chacalnika : 25 espèces + 3 bulles famille, 27 interactions GloBI documentées sur 4 types (connectance 7.1%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
28
Interactions affichées
27
Connectance
0.071
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°

23,4°C

Annual rain

1 407mm

Moisture idx (CMI)

-0,14

Runoff

246mm/an

PET

1 642mm

AET

1 191mm

Mean slope

1,4°

Water table

127cm

Forest

24%

Crops

2%

Urban

0%

Protected

3%

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