Réseau hydrographique de l'Engranne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2016
6 km²
Commune · FRA
Martres
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
891
Observations
4 662
Area
3,1km²
Ecological tissue
Sample of 38 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 Martres : 27 espèces reliées par 136 interactions GloBI sur 5 types (connectance 16.6%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
41
Interactions affichées
136
Connectance
0.166
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
891 distinct species · 4 662 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
13,5°C
Annual rain
870mm
Warmest m°
26,5°C
Coldest m°
2,7°C
Elevation: 61 m on average (min 56 m, max 72 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
13,5°C
Annual rain
870mm
Warmest month
26,5°C
Coldest month
2,7°C
Mean alt.
61m
Min
56m
Max
72m
Std. dev.
4m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, 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
6,2
Org. C
35,1g/kg
Clay
22,7%
Sand
39,2%
Silt
38,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Gironde
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,1
Org. C
63,2g/kg
Clay
22,5%
Sand
39,6%
Silt
37,9%
5–15 cm
pH H₂O
6,2
Org. C
21,5g/kg
Clay
22,6%
Sand
39,4%
Silt
38,0%
15–30 cm
pH H₂O
6,2
Org. C
20,5g/kg
Clay
23,0%
Sand
38,6%
Silt
38,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest16.6%
Crops48.6%
Built-up0.7%
Bare soil1.4%
Other (grassland, water…)32.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
1,8km
Basins crossed
1
Max stream order
1
Max drainage
15 675km²
Discharge in basins
0,4m³/s
Mean precip.
866mm/an
Mean T°
12,4°C
Moisture idx
-0,12
Max snow
3%
Mean runoff
468mm/an
Mean elev. (basins)
93m
Watersheds crossing here
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,9nW
Built-up
68,4%
Pesticides
46,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN Not Reported · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
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.