Ontologia

Commune · PRT

Alfena

Portugal

CsbTemperate, dry summer, warm summer(100 %)

Species observed

472

Observations

10 907

Area

11,1km²

Ecological tissue

Sample of 44 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 Alfena : 34 espèces reliées par 97 interactions GloBI sur 6 types (connectance 9.8%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
45
Interactions affichées
97
Connectance
0.098
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

472 distinct species · 10 907 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

10 907 obs · 1 cellules
Obs. / cellule
≥ 10 907
10 907–10 906
10 907–10 906
10 907–10 906
< 10 907

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

Climate

Mean T°

15,1°C

Annual rain

1 515mm

Warmest m°

25,5°C

Coldest m°

5,9°C

Elevation: 126 m on average (min 101 m, max 203 m)

Bioclimatic detailsExpert
Annual mean temp.
15,1°C
Annual rain
1 515mm
Warmest month
25,5°C
Coldest month
5,9°C
Mean alt.
126m
Min
101m
Max
203m
Std. dev.
17m
Köppen-Geiger (dominant)
CsbTemperate, dry summer, warm summer(100 %)Temperate

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

Soil & lithology

pH H₂O

5,4

Org. C

47,8g/kg

Clay

15,3%

Sand

52,8%

Silt

31,9%

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

Dominant lithology: mtGLiMaggregated to Valongo

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,4
Org. C
66,1g/kg
Clay
14,4%
Sand
53,2%
Silt
32,4%
5–15 cm
pH H₂O
5,5
Org. C
40,3g/kg
Clay
13,3%
Sand
54,0%
Silt
32,6%
15–30 cm
pH H₂O
5,5
Org. C
37,1g/kg
Clay
18,1%
Sand
51,3%
Silt
30,6%

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

Land cover

Forest17.2%
Crops5.4%
Built-up7.8%
Bare soil2.7%
Other (grassland, water…)67.0%

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

Hydrology1 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

7,0km

Basins crossed

1

Max stream order

2

Max drainage

318km²

Discharge in basins

0,0m³/s

Mean precip.

1 223mm/an

Mean T°

14,2°C

Moisture idx

0,23

Max snow

2%

Mean runoff

868mm/an

Mean elev. (basins)

107m

Watersheds crossing here

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

Human pressure

Pop. density

9hab/km²

Night light

10,3nW

Built-up

775,3%

Pesticides

38,5kg/km²

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