HydroBASINS lev08 watershed · #7080043870
Bassin de Tolomato River
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 4 administrative regions : Duval, Flagler, Saint Johns, Volusia
Sub-basin area
1 207,1km²
Upstream area
1 207,1km²
Discharge
0,7m³/s
Mean elev.
11m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 732.5 km²60.8% of basin
- 322.7 km²26.8% of basin
- 73.1 km²6.1% of basin
- 29.5 km²2.4% of basin
28 intersecting protected areas
Marine Protected Area
161.92 km² overlap
Guana Tolomato Matanzas
IUCN VNational Estuarine Research Reserve
68.74 km² overlap
Marine Protected Area
67.93 km² overlap
Faver-Dykes
IUCN VState Park
24.39 km² overlap
GTMNERR - Guana River Site
IUCN Not AssignedOther State Managed Area
11.01 km² overlap
Nocatee
IUCN VPreserve
9.09 km² overlap
Princess Place
IUCN VPreserve
6.51 km² overlap
Anastasia State Park
IUCN IVMarine Protected Area
6.50 km² overlap
Faver-Dykes State Park
IUCN IVMarine Protected Area
5.93 km² overlap
19 more protected areassorted by overlap area
Wilson Green-Dave Branch
IUCN Not AssignedConservation Easement
4.30 km² overlap
Marine Protected Area
2.63 km² overlap
Marine Protected Area
2.07 km² overlap
Marine Protected Area
1.85 km² overlap
Betty Steflik Memorial
IUCN VPreserve
1.57 km² overlap
Fort Matanzas
IUCN IIINational Monument
1.09 km² overlap
Long Creek
IUCN VNature Preserve
0.91 km² overlap
Roberts Property
IUCN Not AssignedOther State Managed Area
0.75 km² overlap
Marsh View
IUCN VPreserve
0.74 km² overlap
Marine Protected Area
0.42 km² overlap
Bulow Creek State Park
IUCN IVMarine Protected Area
0.29 km² overlap
Bulow Creek
IUCN VState Park
0.29 km² overlap
Graham Swamp
IUCN VMitigation Bank
0.27 km² overlap
Local Conservation Area
0.18 km² overlap
Castillo de San Marcos
IUCN IIINational Monument
0.08 km² overlap
Wonderwood Drive
IUCN VSanctuary
0.05 km² overlap
Guana River Marsh
IUCN VSanctuary
0.02 km² overlap
Bird Of Paradise
IUCN VLocal Conservation Area
0.01 km² overlap
Mandel Parcel
IUCN VOther NPS Protected Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 880 distinct species · 902 444 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Tolomato River : 31 espèces reliées par 75 interactions GloBI sur 3 types (connectance 8.3%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
20,8°C
Annual rain
1 268mm
Moisture idx (CMI)
-0,10
Runoff
285mm/an
PET
1 402mm
AET
1 073mm
Mean slope
0,5°
Water table
23cm
Forest
73%
Crops
4%
Urban
25%
Protected
23%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)