Chassahowitzka National Wildlife Refuge
IUCN IVMarine Protected Area · 1943
114 km²
County · USA
Hernando
United States
CfaTemperate, no dry season, hot summer(100 %)
Species observed
4 467
Observations
657 995
Area
1 276,2km²
Ecological tissue
Sample of 43 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 Hernando : 28 espèces reliées par 75 interactions GloBI sur 4 types (connectance 8.3%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
43
Interactions affichées
75
Connectance
0.083
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
4 467 distinct species · 657 995 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
21,5°C
Annual rain
1 377mm
Warmest m°
31,3°C
Coldest m°
10,5°C
Elevation: 22 m on average (min -1 m, max 62 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
21,5°C
Annual rain
1 377mm
Warmest month
31,3°C
Coldest month
10,5°C
Mean alt.
22m
Min
-1m
Max
62m
Std. dev.
14m
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
5,3
Org. C
28,0g/kg
Clay
5,9%
Sand
88,8%
Silt
5,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,2
Org. C
42,9g/kg
Clay
5,6%
Sand
89,0%
Silt
5,4%
5–15 cm
pH H₂O
5,3
Org. C
25,7g/kg
Clay
5,6%
Sand
89,1%
Silt
5,2%
15–30 cm
pH H₂O
5,3
Org. C
15,5g/kg
Clay
6,6%
Sand
88,4%
Silt
5,1%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest44.6%
Crops4.6%
Built-up2.8%
Bare soil0.5%
Other (grassland, water…)47.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology10 basins · 20 lakes · 7 rivers
Hydrology metrics for this exact territory
Stream length here
46,0km
Lake surface here
8,54km²
Basins crossed
10
Max stream order
4
Max drainage
2 621km²
Discharge in basins
20,9m³/s
Mean precip.
1 350mm/an
Mean T°
21,6°C
Moisture idx
-0,12
Mean runoff
412mm/an
Mean elev. (basins)
26m
Watersheds crossing here
- Bassin de Chassahowitzka Riversub-area358,9 km²overlap295.67 km²23%
- Basin #45320sub-area381,3 km²overlap261.02 km²20%
- Bassin de Withlacoochee Riversub-area749,6 km²overlap240.21 km²19%
- Bassin de Withlacoochee Riversub-area841,7 km²overlap153.41 km²12%
- Bassin de Mud Riversub-area147,3 km²overlap124.60 km²10%
- Bassin de Pithlachascotee Riversub-area415,5 km²overlap92.41 km²7%
- Bassin de Little Withlacoochee Riversub-area359,9 km²overlap49.70 km²4%
- Bassin de Crystal Riversub-area492 km²overlap35.37 km²3%
- Bassin de Tsala Apopka Outfall Canalsub-area484,2 km²overlap15.60 km²1%
1 more basinssorted by overlap
Lakes (20, top by area)
- Weekiwachee Prairie Lakearea1,6 km²avg depth1.7 m
- Hancock Lakearea1,5 km²avg depth6.1 m
- Lac 1068026area0,8 km²avg depth2.7 m
- Lac 1068120area0,7 km²avg depth2.8 m
- Lac 1068148area0,6 km²avg depth2.8 m
- Lac 1068067area0,6 km²avg depth3.9 m
- Lac 1068164area0,6 km²avg depth3.2 m
- Lac 1068132area0,5 km²avg depth4.9 m
- Lac 1068159area0,4 km²avg depth4.6 m
11 more lakes
- Lac 1068171area0,3 km²avg depth4.9 m
- Lac 1068043area0,3 km²avg depth2.2 m
- Lac 1067991area0,3 km²avg depth4.4 m
- Lac 1068036area0,3 km²avg depth3.1 m
- Lac 1067951area0,3 km²avg depth3.1 m
- Lac 1067950area0,3 km²avg depth3.5 m
- Lac 1068131area0,2 km²avg depth2.4 m
- Lac 1068031area0,2 km²avg depth3.2 m
- Lac 1067969area0,2 km²avg depth4.0 m
- Lac 1068086area0,2 km²avg depth2.2 m
- Lac 1068091area0,2 km²avg depth2.1 m
Rivers / streams (7, ord ≥ 4)
- Withlacoochee Riverord 4len here29.69 km9%total316 km
- Little Withlacoochee Riverord 3len here10.09 km19%total52 km
- Mud Riverord 1len here2.77 km100%total3 km
- Diablo Canalord 1len here1.95 km100%total2 km
- Chassahowitzka Riverord 3len here1.29 km12%total10 km
- Jenkins Creekord 1len here0.25 km27%total1 km
- Masaryktown Canalord 1len here0.00 km0%total8 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
3,5nW
Built-up
281,2%
Pesticides
12,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas9
IUCN V · 3IUCN IV · 2IUCN III · 2IUCN Ib · 1IUCN Not Assigned · 1🌊 Marine · 3
Chassahowitzka
IUCN IVNational Wildlife Refuge · 1941
114 km²
Chassahowitzka National Wildlife Refuge.Wilderness Area
IUCN IbNational Wildlife Refuge · 1977
96 km²
Chinsegut
IUCN IIIWildlife and Environmental Area
3 km²
Weeki Wachee Springs
IUCN IIIState Park
2 km²
Cypress Lakes Preserve (Hernando County)
IUCN VPreserve · 1994
1 km²
Complete list9 protected areas
- Chassahowitzka National Wildlife RefugeMarine Protected AreaIUCN IV1943114 km²
- ChassahowitzkaNational Wildlife RefugeIUCN IV1941114 km²
- Chassahowitzka National Wildlife Refuge.Wilderness AreaNational Wildlife RefugeIUCN Ib197796 km²
- ChinsegutWildlife and Environmental AreaIUCN III3 km²
- Weeki Wachee SpringsState ParkIUCN III2 km²
- Cypress Lakes Preserve (Hernando County)PreserveIUCN V19941 km²
- Ahhochee HillSanctuaryIUCN V1 km²
- Fickett HammockPreserveIUCN V19941 km²
- Chinsegut Hill Conference CenterState University Managed AreaIUCN Not Assigned0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN