National Wildlife Refuge · usa
Great Meadows
- Area
- 16 km²
- IUCN cat.
- IV
Overview
- Designation
- National Wildlife Refuge
- IUCN category
- IV · Aire d'habitats / espèces
Gestion active pour maintenir habitats / espèces particuliers
0 - Managing authority
- U.S. Fish and Wildlife Service ; Non-Governmental Organization ; City Land
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
2 354 distinct species · 194 194 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 Great Meadows : 25 espèces reliées par 81 interactions GloBI sur 4 types (connectance 10.4%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology1 basins · 2 lakes · 8 rivers
Hydrology metrics for this exact territory
Stream length here
20,2km
Lake surface here
0,58km²
Basins crossed
1
Max stream order
4
Max drainage
1 080km²
Discharge in basins
0,4m³/s
Mean precip.
1 138mm/an
Mean T°
8,9°C
Moisture idx
0,14
Max snow
14%
Mean runoff
780mm/an
Mean elev. (basins)
84m
Watersheds crossing here
Lakes (2, top by area)
Rivers / streams (8, ord ≥ 4)
- Concord Riverord 4len here7.03 km27%total26 km
- Sudbury Riverord 3len here6.12 km14%total45 km
- Allowance Brookord 2len here2.72 km53%total5 km
- Dudley Brookord 3len here2.57 km11%total23 km
- Pages Brookord 1len here1.53 km52%total3 km
- Elm Brookord 2len here0.18 km6%total3 km
- Pine Brookord 1len here0.03 km1%total5 km
- Pegan Brookord 2len here≈ tangenttotal7 km
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
- 42.38679, -71.37836
- 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.