Rivière· 3 segments
Tour de l'Île
Crosses 3 administrative regions : Matoury, Montsinéry-Tonnégrande, Roura
Total length
24km
Max discharge
23,3m³/s
Max Strahler
4
Segments matched
3
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
- Montsinéry-TonnégrandeCayenne · French Guiana11.4 kmin this dpt
- MatouryCayenne · French Guiana0.1 kmin this dpt
- RouraCayenne · French Guiana0.0 kmin this dpt
4 intersecting protected areas
Guyane
IUCN VRegional Nature Park
Petit Cayenne
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
Grand Matoury
IUCN IVBiotope Protection Order
Mont Grand Matoury
IUCN IVNational Nature Reserve
1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
798 distinct species · 2 436 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Tour de l'Île : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 43 interactions GloBI sur 5 types (connectance 6.8%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
24km
Max discharge
23,3m³/s
Max Strahler
4
Segments matched
3
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.