Martin County
IUCN VWaterfowl Production Area
405 km²
County · USA
United States
Species observed
6 536
Observations
1 139 805
Area
1 504,5km²
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).
Tissu écologique de Dakota : 30 espèces reliées par 75 interactions GloBI sur 3 types (connectance 10.7%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
6 536 distinct species · 1 139 805 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
7,6°C
Annual rain
854mm
Warmest m°
27,7°C
Coldest m°
-13,1°C
Elevation: 278 m on average (min 207 m, max 342 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
6,2
Org. C
30,8g/kg
Clay
20,1%
Sand
43,9%
Silt
36,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiM
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
279,6km
Lake surface here
16,36km²
Basins crossed
6
Max stream order
7
Max drainage
116 030km²
Discharge in basins
199,9m³/s
Mean precip.
769mm/an
Mean T°
6,9°C
Moisture idx
-0,17
Max snow
22%
Mean runoff
249mm/an
Mean elev. (basins)
289m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
2hab/km²
Night light
7,5nW
Built-up
287,8%
Pesticides
23,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Waterfowl Production Area
405 km²
National Wildlife Refuge
97 km²
Waterfowl Production Area · 1987
66 km²
Reserve Program
54 km²
National Wildlife Refuge
42 km²
State Wildlife Management Area
27 km²
+ 16 protected areas (top 60 shown)
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN