Merritt Island National Wildlife Refuge
IUCN IVMarine Protected Area · 1963
524 km²
County · USA
Volusia
United States
CfaTemperate, no dry season, hot summer(100 %)
Species observed
6 623
Observations
1 017 011
Area
3 107,9km²
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 Volusia : 31 espèces reliées par 68 interactions GloBI sur 4 types (connectance 7.2%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
44
Interactions affichées
68
Connectance
0.072
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
6 623 distinct species · 1 017 011 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
21,6°C
Annual rain
1 375mm
Warmest m°
31,5°C
Coldest m°
11,4°C
Elevation: 8 m on average (min -15 m, max 28 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
21,6°C
Annual rain
1 375mm
Warmest month
31,5°C
Coldest month
11,4°C
Mean alt.
8m
Min
-15m
Max
28m
Std. dev.
6m
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
40,0g/kg
Clay
4,6%
Sand
88,5%
Silt
6,9%
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
5,3
Org. C
58,9g/kg
Clay
4,6%
Sand
87,9%
Silt
7,5%
5–15 cm
pH H₂O
5,3
Org. C
39,8g/kg
Clay
4,6%
Sand
88,5%
Silt
6,9%
15–30 cm
pH H₂O
5,5
Org. C
21,3g/kg
Clay
4,7%
Sand
89,1%
Silt
6,2%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest50.1%
Crops1.2%
Built-up2.8%
Bare soil0.3%
Other (grassland, water…)45.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology8 basins · 50 lakes · 13 rivers
Hydrology metrics for this exact territory
Stream length here
211,2km
Lake surface here
177,18km²
Basins crossed
8
Max stream order
5
Max drainage
10 101km²
Discharge in basins
147,0m³/s
Mean precip.
1 294mm/an
Mean T°
21,3°C
Moisture idx
-0,10
Mean runoff
326mm/an
Mean elev. (basins)
14m
Watersheds crossing here
- Bassin de Tomoka Riversub-area1 046,7 km²overlap944.97 km²30%
- Bassin de Saint Johns Riversub-area2 051,2 km²overlap660.65 km²21%
- Bassin de Dunns Creeksub-area1 516,4 km²overlap512.78 km²16%
- Bassin de Saint Johns Riversub-area383,7 km²overlap292.44 km²9%
- Bassin de Indian River Northsub-area2 264 km²overlap288.48 km²9%
- Bassin de Saint Johns Riversub-area401,3 km²overlap250.39 km²8%
- Bassin de Saint Johns Riversub-area2 157,7 km²overlap128.69 km²4%
- Bassin de Tolomato Riversub-area1 207,1 km²overlap29.49 km²1%
Lakes (50, top by area)
- Lake Georgearea185,2 km²avg depth8.9 m
- Crescent Lakearea69,1 km²avg depth5.8 m
- Lake Monroearea33,2 km²avg depth6.1 m
- Lake Harneyarea23,2 km²avg depth3.4 m
- Lake Dexterarea15,7 km²avg depth1.8 m
- Konomac Lakearea4,5 km²avg depth5.0 m
- Lake Ashbyarea3,3 km²avg depth5.5 m
- Lake Beresfordarea3 km²avg depth4.3 m
- Lake Diasarea2,6 km²avg depth2.3 m
41 more lakes
- Puzzle Lakearea2 km²avg depth1.3 m
- Spring Garden Lakearea1,8 km²avg depth2.8 m
- Lac 1067639area0,9 km²avg depth3.1 m
- Lac 1067551area0,7 km²avg depth3.0 m
- Lac 1067647area0,7 km²avg depth2.1 m
- Lac 1067817area0,7 km²avg depth3.5 m
- Lac 1067130area0,7 km²avg depth1.8 m
- Lac 1067778area0,7 km²avg depth3.1 m
- Lac 1067249area0,6 km²avg depth3.5 m
- Lac 1067755area0,6 km²avg depth3.2 m
- Lac 1067697area0,6 km²avg depth2.9 m
- Lac 1067632area0,6 km²avg depth2.4 m
- Lac 1067489area0,5 km²avg depth2.5 m
- Lac 1067146area0,5 km²avg depth2.1 m
- Lac 1067520area0,5 km²avg depth2.3 m
- Lac 1067503area0,4 km²avg depth2.8 m
- Lac 1067800area0,4 km²avg depth3.5 m
- Lac 1067543area0,4 km²avg depth3.1 m
- Lac 1067679area0,3 km²avg depth2.8 m
- Lac 1067779area0,3 km²avg depth3.1 m
- Lac 1067787area0,3 km²avg depth2.7 m
- Lac 1067628area0,3 km²avg depth1.9 m
- Lac 1067459area0,3 km²avg depth2.9 m
- Lac 1067468area0,3 km²avg depth3.0 m
- Lac 1067529area0,3 km²avg depth2.6 m
- Lac 1067765area0,3 km²avg depth3.5 m
- Lac 1067149area0,3 km²avg depth1.4 m
- Lac 1067928area0,3 km²avg depth1.9 m
- Lac 1067797area0,3 km²avg depth2.4 m
- Lac 1067634area0,3 km²avg depth2.5 m
- Lac 1067641area0,3 km²avg depth2.9 m
- Lac 1067571area0,3 km²avg depth2.2 m
- Lac 1067614area0,3 km²avg depth2.0 m
- Lac 1067796area0,3 km²avg depth2.7 m
- Lac 1067500area0,2 km²avg depth2.8 m
- Lac 1067759area0,2 km²avg depth3.0 m
- Lac 1067242area0,2 km²avg depth2.3 m
- Lac 1067630area0,2 km²avg depth2.1 m
- Lac 1067713area0,2 km²avg depth2.5 m
- Lac 1067777area0,2 km²avg depth2.8 m
- Lac 1067958area0,2 km²avg depth1.7 m
Rivers / streams (13, ord ≥ 4)
- Saint Johns Riverord 6len here102.23 km16%total642 km
- Tomoka Riverord 3len here37.70 km91%total41 km
- Spring Garden Creekord 2len here18.35 km100%total18 km
- Spruce Creekord 3len here11.85 km89%total13 km
- Indian River Northord 3len here8.77 km45%total19 km
- Strickland Creekord 3len here6.76 km89%total8 km
- Bulow Creekord 1len here6.71 km68%total10 km
- Halifax Riverord 4len here5.88 km16%total37 km
- Turnbull Canalord 1len here3.53 km100%total4 km
- Turkey Creekord 5len here3.30 km71%total5 km
- Le Fils Sloughord 5len here2.59 km30%total9 km
- Deep Creekord 3len here1.94 km11%total18 km
1 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
3,7nW
Built-up
282,8%
Pesticides
12,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas38
IUCN V · 19IUCN IV · 9IUCN Not Assigned · 4IUCN III · 3IUCN Ib · 2IUCN VI · 1🌊 Marine · 13
Canaveral National Seashore
IUCN VMarine Protected Area · 1975
237 km²
Lake Woodruff
IUCN IVNational Wildlife Refuge
87 km²
Canaveral
IUCN VNational Seashore · 1975
73 km²
Lower Wekiva River
IUCN VPreserve State Park
70 km²
Longleaf Pine
IUCN VPreserve
49 km²
Complete list38 protected areas
- Merritt Island National Wildlife RefugeMarine Protected AreaIUCN IV1963524 km²
- Canaveral National SeashoreMarine Protected AreaIUCN V1975237 km²
- Lake WoodruffNational Wildlife RefugeIUCN IV87 km²
- CanaveralNational SeashoreIUCN V197573 km²
- Lower Wekiva RiverPreserve State ParkIUCN V70 km²
- Longleaf PinePreserveIUCN V49 km²
- Nine Mile PointCounty Managed AreaIUCN Not Assigned33 km²
- Deep CreekPreserveIUCN V201032 km²
- Alexander SpringsWildernessIUCN Ib198432 km²
- Bulow CreekState ParkIUCN V198123 km²
- Bulow Creek State ParkMarine Protected AreaIUCN IV198121 km²
- Tomoka Marsh Aquatic PreserveMarine Protected AreaIUCN IV196920 km²
- Mosquito Lagoon Aquatic PreserveMarine Protected AreaIUCN IV197019 km²
- Haw CreekPreserve State ParkIUCN V12 km²
- Blue SpringState ParkIUCN III11 km²
- Colbert-CameronMitigation BankIUCN V11 km²
- Doris Leeper Spruce CreekPreserveIUCN V10 km²
- Lake SwampMitigation BankIUCN V8 km²
- Black BearWilderness AreaIUCN V7 km²
- Hontoon IslandState ParkIUCN III7 km²
- TomokaState ParkIUCN III19467 km²
- Tomoka State ParkMarine Protected AreaIUCN IV19467 km²
- BarbervilleMitigation BankIUCN IV6 km²
- Wiregrass PrairiePreserveIUCN V6 km²
- Deering Preserve At Deep CreekPreserveIUCN Not Assigned6 km²
- Lake Woodruff National Wildlife Refuge.Wilderness AreaNational Wildlife RefugeIUCN Ib19774 km²
- Merritt IslandNational Wildlife RefugeIUCN IV19634 km²
- Consolidated Tomoka Mitigation DonationMitigationIUCN VI3 km²
- Lake HarneyWilderness AreaIUCN V1 km²
- LyoniaPreserveIUCN V1 km²
- Lake BeresfordCounty Managed AreaIUCN Not Assigned1 km²
- Beck RanchLocal Conservation AreaIUCN V1 km²
- Gamble PlaceConservation EasementIUCN V19991 km²
- Hickory BluffCounty Managed AreaIUCN Not Assigned1 km²
- Hand AvenueMitigationIUCN IV0 km²
- Caraway LakeSanctuaryIUCN V0 km²
- CliftonSanctuaryIUCN V0 km²
- LangfordSanctuaryIUCN V0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN