Ontologia

HydroBASINS lev08 watershed · #7080878660

Bassin de Río Iyás

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 : El Cuá, Río Blanco, Siuna, Waslala

Pfafstetter: 75378026

Sub-basin area

1 713,5km²

Upstream area

1 713,5km²

Discharge

67,25m³/s

Mean elev.

373m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Río Tuma114 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

702 distinct species · 3 091 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 091 obs · 29 cellules
Obs. / cellule
≥ 1 244
259–1 243
99–258
34–98
< 34

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

Ecological tissue

Sample of 27 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 Río Iyás : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 29 interactions GloBI sur 4 types (connectance 7.7%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
29
Connectance
0.077
Patrimoniales
1
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°

24,0°C

Annual rain

2 423mm

Moisture idx (CMI)

0,34

Runoff

1 221mm/an

PET

1 593mm

AET

1 370mm

Mean slope

9,8°

Water table

308cm

Forest

90%

Crops

8%

Urban

0%

Protected

100%

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