Martin County
IUCN VWaterfowl Production Area
405 km²
County · USA
United States
Species observed
1 477
Observations
29 342
Area
2 273,2km²
Sample of 36 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).
Tissu écologique de Norman : 26 espèces reliées par 76 interactions GloBI sur 4 types (connectance 12.1%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
1 477 distinct species · 29 342 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
5,3°C
Annual rain
636mm
Warmest m°
26,9°C
Coldest m°
-16,9°C
Elevation: 299 m on average (min 258 m, max 393 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
7,3
Org. C
36,5g/kg
Clay
29,3%
Sand
35,8%
Silt
34,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: pbGLiM
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology metrics for this exact territory
Stream length here
447,7km
Lake surface here
0,47km²
Basins crossed
11
Max stream order
6
Max drainage
49 501km²
Discharge in basins
105,7m³/s
Mean precip.
564mm/an
Mean T°
4,4°C
Moisture idx
-0,35
Max snow
31%
Mean runoff
87mm/an
Mean elev. (basins)
309m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
0hab/km²
Night light
0,1nW
Built-up
9,1%
Pesticides
21,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Waterfowl Production Area
405 km²
Easement · 1987
99 km²
National Wildlife Refuge
97 km²
Waterfowl Production Area · 1987
66 km²
Reserve Program
54 km²
Waterfowl Production Area
41 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN