Wetlands Reserve Program (WRP), St. Helena, LA
IUCN VReserve Program · 2011
4 km²
Parish · USA
Saint Helena
United States
CfaTemperate, no dry season, hot summer(100 %)
Species observed
1 119
Observations
12 600
Area
1 058,9km²
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).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Saint Helena : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 65 interactions GloBI sur 4 types (connectance 8.3%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
40
Interactions affichées
65
Connectance
0.083
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 119 distinct species · 12 600 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
19,1°C
Annual rain
1 672mm
Warmest m°
32,4°C
Coldest m°
6,0°C
Elevation: 61 m on average (min 24 m, max 102 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
19,1°C
Annual rain
1 672mm
Warmest month
32,4°C
Coldest month
6,0°C
Mean alt.
61m
Min
24m
Max
102m
Std. dev.
20m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,4
Org. C
21,8g/kg
Clay
22,0%
Sand
25,5%
Silt
52,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,4
Org. C
46,0g/kg
Clay
18,6%
Sand
27,2%
Silt
54,3%
5–15 cm
pH H₂O
5,4
Org. C
13,7g/kg
Clay
20,0%
Sand
26,5%
Silt
53,5%
15–30 cm
pH H₂O
5,4
Org. C
5,8g/kg
Clay
27,3%
Sand
22,8%
Silt
49,9%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest77.4%
Crops3.6%
Built-up0.2%
Bare soil0.5%
Other (grassland, water…)18.2%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology4 basins · 10 lakes · 3 rivers
Hydrology metrics for this exact territory
Stream length here
37,4km
Lake surface here
4,87km²
Basins crossed
4
Max stream order
4
Max drainage
5 676km²
Discharge in basins
24,5m³/s
Mean precip.
1 630mm/an
Mean T°
18,9°C
Moisture idx
0,10
Mean runoff
684mm/an
Mean elev. (basins)
60m
Watersheds crossing here
Lakes (10, top by area)
- Lake #13834area1,6 km²avg depth2.7 m
- Lac 1065394area0,7 km²avg depth2.3 m
- Lac 1065413area0,6 km²avg depth1.9 m
- Lac 1065471area0,6 km²avg depth3.1 m
- Lac 1065458area0,5 km²avg depth2.8 m
- Lac 1065412area0,3 km²avg depth2.3 m
- Lac 1065421area0,2 km²avg depth2.0 m
- Lac 1065300area0,1 km²avg depth2.3 m
- Lac 1065448area0,1 km²avg depth2.1 m
1 more lakes
Rivers / streams (3, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,8nW
Built-up
22,0%
Pesticides
4,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN V · 3
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN