Ontologia

Department · FRA

Gers

France

CfaTemperate, no dry season, hot summer(58 %)

Species observed

8 301

Observations

807 834

Area

6 300,1km²

Ecological tissue

Sample of 49 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 Gers : 47 espèces + 2 bulles famille, 75 interactions GloBI documentées sur 7 types (connectance 6.4%, filtre Serrano α=0.2). Les 2 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
49
Interactions affichées
75
Connectance
0.064
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

8 301 distinct species · 807 834 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

819 505 obs · 95 cellules · 1600–2026
Obs. / cellule
≥ 49 228
16 182–49 227
10 342–16 181
7 679–10 341
< 7 679

Source : GBIF — observations agrégées par hexagones 0.1° × 0.1° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

13,5°C

Annual rain

781mm

Warmest m°

26,4°C

Coldest m°

2,1°C

Elevation: 174 m on average (min 73 m, max 361 m)

Bioclimatic detailsExpert
Annual mean temp.
13,5°C
Annual rain
781mm
Warmest month
26,4°C
Coldest month
2,1°C
Mean alt.
174m
Min
73m
Max
361m
Std. dev.
48m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(58 %)Temperate

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

Soil & lithology

pH H₂O

6,8

Org. C

34,5g/kg

Clay

28,4%

Sand

24,1%

Silt

47,4%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,7
Org. C
64,8g/kg
Clay
27,7%
Sand
24,1%
Silt
48,2%
5–15 cm
pH H₂O
6,8
Org. C
18,7g/kg
Clay
28,1%
Sand
23,6%
Silt
48,4%
15–30 cm
pH H₂O
6,8
Org. C
19,9g/kg
Clay
29,5%
Sand
24,7%
Silt
45,7%

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

Land cover

Forest13.7%
Crops59.9%
Built-up0.5%
Bare soil2.0%
Other (grassland, water…)23.8%

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

Hydrology18 basins · 31 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

1 405,1km

Lake surface here

9,53km²

Basins crossed

18

Max stream order

4

Max drainage

34 970km²

Discharge in basins

300,3m³/s

Mean precip.

804mm/an

Mean T°

12,2°C

Moisture idx

-0,18

Max snow

7%

Mean runoff

321mm/an

Mean elev. (basins)

190m

Watersheds crossing here

9 more basins

Lakes (31, top by area)

22 more lakes

Rivers / streams (100, ord ≥ 4)

88 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,2nW

Built-up

53,3%

Pesticides

45,8kg/km²

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

Protected areas14

IUCN Not Reported · 8IUCN IV · 6🌊 Marine · 1

La Gélise

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2021

38 km²

L'Adour

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2021

36 km²

Vallée de l'Adour

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2016

27 km²

Complete list

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN

Sub-administrations200

France-specific data (Phase 2)

ZNIEFF, Natura 2000, INPN protected spaces, BNV-D pesticides, Naïades water quality, SAFRAN fine climate, BRGM lithology — Layer FR to load in Phase 2.