Ontologia

HydroBASINS lev08 watershed · #6080404820

Bassin de Riacho Relirana

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 7 administrative regions : Abaiara, Brejo Santo, Jardim, Jati, Milagres +2

Pfafstetter: 63304492

Sub-basin area

599,7km²

Upstream area

599,7km²

Discharge

3,04m³/s

Mean elev.

513m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Riacho dos Porcos466 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

7 dept-equivalent regions (GADM L2)

1 intersecting protected areas

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

Species present

482 distinct species · 1 087 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 087 obs · 15 cellules
Obs. / cellule
≥ 252
249–251
83–248
46–82
< 46

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

Ecological tissue

Sample of 24 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 Riacho Relirana : 22 espèces reliées par 23 interactions GloBI sur 3 types (connectance 8.3%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
23
Connectance
0.083
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°

24,2°C

Annual rain

876mm

Moisture idx (CMI)

-0,47

Runoff

155mm/an

PET

1 669mm

AET

740mm

Mean slope

3,9°

Water table

206cm

Forest

26%

Crops

27%

Urban

2%

Protected

39%

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