Ontologia

HydroBASINS lev08 watershed · #7080858290

Bassin de Lalana

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 : San Juan Comaltepec, Santiago Choápam, Santo Domingo Roayaga, Totontepec Villa de Morelos

Pfafstetter: 75340268

Sub-basin area

168,5km²

Upstream area

168,5km²

Discharge

8,63m³/s

Mean elev.

1 372m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Lalana269 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Yuuk'am

    IUCN VI

    Voluntary Conservation Area

    1.56 km² overlap

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

Species present

751 distinct species · 1 943 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 943 obs · 4 cellules
Obs. / cellule
≥ 812
812–811
638–811
638–637
< 638

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

Ecological tissue

Sample of 33 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 Lalana : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 46 interactions GloBI sur 6 types (connectance 8.2%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
46
Connectance
0.082
Patrimoniales
2
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°

18,3°C

Annual rain

2 680mm

Moisture idx (CMI)

0,45

Runoff

1 536mm/an

PET

1 462mm

AET

1 253mm

Mean slope

23,2°

Water table

768cm

Forest

43%

Crops

16%

Urban

0%

Protected

0%

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