State Park · usa
Mark Twain
- Area
- 11 km²
- IUCN cat.
- III
- Year
- 1920
Overview
- Designation
- State Park
- IUCN category
- III · Monument naturel
Caractéristique naturelle spécifique protégée
- Established
- 1920
- Managing authority
- Unknown
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
387 distinct species · 3 253 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Mark Twain : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 75 interactions GloBI sur 4 types (connectance 9.6%, 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).
Hydrology2 basins · 1 lakes · 3 rivers
Hydrology metrics for this exact territory
Stream length here
1,4km
Lake surface here
0,34km²
Basins crossed
2
Max stream order
5
Max drainage
3 130km²
Discharge in basins
0,1m³/s
Mean precip.
986mm/an
Mean T°
11,8°C
Moisture idx
-0,12
Max snow
6%
Mean runoff
252mm/an
Mean elev. (basins)
238m
Watersheds crossing here
Lakes (1, top by area)
Rivers / streams (3, 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
- 39.48612, -91.80202
- 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.