Martin County
IUCN VWaterfowl Production Area
405 km²
County · USA
United States
Species observed
697
Observations
19 479
Area
3 363,3km²
Sample of 33 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 Walsh : 22 espèces reliées par 77 interactions GloBI sur 3 types (connectance 14.6%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
697 distinct species · 19 479 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
4,1°C
Annual rain
535mm
Warmest m°
26,1°C
Coldest m°
-18,0°C
Elevation: 342 m on average (min 240 m, max 500 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
7,4
Org. C
38,1g/kg
Clay
33,6%
Sand
24,5%
Silt
42,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
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
523,7km
Lake surface here
7,28km²
Basins crossed
17
Max stream order
6
Max drainage
79 714km²
Discharge in basins
251,0m³/s
Mean precip.
474mm/an
Mean T°
3,6°C
Moisture idx
-0,44
Max snow
33%
Mean runoff
56mm/an
Mean elev. (basins)
352m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
0hab/km²
Night light
0,1nW
Built-up
9,8%
Pesticides
28,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Waterfowl Production Area
405 km²
Easement · 1987
99 km²
Reserve Program · 2001
56 km²
Watershed Protection · 1998
25 km²
Reserve Program · 1996
25 km²
Waterfowl Production Area
17 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN