Private Conservation Land · usa
Mad Island Macrosite Fee
- Area
- 28 km²
- IUCN cat.
- V
- Year
- 1989
Overview
- Designation
- Private Conservation Land
- IUCN category
- V · Paysage protégé
Paysage façonné par l'humain digne de conservation
- Established
- 1989
- Managing authority
- Non-Governmental Organization ; Natural Resources Conservation Service
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
874 distinct species · 139 780 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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).
Indicateurs du tissu écologique
Tissu écologique de Mad Island Macrosite Fee : 17 espèces reliées par 50 interactions GloBI sur 3 types (connectance 12.3%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology2 basins · 1 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
5,1km
Lake surface here
0,68km²
Basins crossed
2
Max stream order
2
Max drainage
106 730km²
Discharge in basins
0,3m³/s
Mean precip.
1 092mm/an
Mean T°
20,8°C
Moisture idx
-0,22
Mean runoff
402mm/an
Mean elev. (basins)
17m
Watersheds crossing here
Lakes (1, top by area)
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 28.66143, -96.09296
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.