Ontologia

Municipality · MEX

Piedras Negras

México

BShArid, steppe, hot(100 %)

Species observed

832

Observations

7 007

Area

474,3km²

Ecological tissue

Sample of 40 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 Piedras Negras : 33 espèces reliées par 65 interactions GloBI sur 4 types (connectance 7.9%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
65
Connectance
0.079
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

832 distinct species · 7 007 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 007 obs · 10 cellules
Obs. / cellule
≥ 6 175
6 175–6 174
156–6 174
69–155
< 69

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

Climate

Mean T°

22,3°C

Annual rain

553mm

Warmest m°

36,2°C

Coldest m°

7,7°C

Elevation: 252 m on average (min 214 m, max 287 m)

Bioclimatic detailsExpert
Annual mean temp.
22,3°C
Annual rain
553mm
Warmest month
36,2°C
Coldest month
7,7°C
Mean alt.
252m
Min
214m
Max
287m
Std. dev.
19m
Köppen-Geiger (dominant)
BShArid, steppe, hot(100 %)Arid

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

7,9

Org. C

15,1g/kg

Clay

28,0%

Sand

44,7%

Silt

27,4%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,9
Org. C
19,4g/kg
Clay
26,7%
Sand
45,7%
Silt
27,6%
5–15 cm
pH H₂O
7,9
Org. C
16,8g/kg
Clay
27,8%
Sand
44,6%
Silt
27,6%
15–30 cm
pH H₂O
7,9
Org. C
9,2g/kg
Clay
29,4%
Sand
43,7%
Silt
27,0%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest9.3%
Crops12.0%
Built-up1.9%
Bare soil5.8%
Other (grassland, water…)70.9%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology7 basins · 0 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

109,0km

Basins crossed

7

Max stream order

7

Max drainage

353 533km²

Discharge in basins

39,1m³/s

Mean precip.

471mm/an

Mean T°

21,4°C

Moisture idx

-0,70

Mean runoff

18mm/an

Mean elev. (basins)

333m

Watersheds crossing here

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

2hab/km²

Night light

5,8nW

Built-up

195,3%

Pesticides

0,6kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)