Ontologia

HydroBASINS lev08 watershed · #6080035190

Bassin de la Lézarde

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 32 administrative regions : Basse-Pointe, Bellefontaine, Case-Pilote, Ducos, Fonds-Saint-Denis +27

Coastal basinPfafstetter: 61400036

Sub-basin area

1 218,8km²

Upstream area

1 218,8km²

Discharge

14,83m³/s

Mean elev.

170m

Administrative coverage

32 dept-equivalent regions (GADM L2)

24 more

30 intersecting protected areas

21 more protected areas

  • Prêcheur Grand\'Rivière

    IUCN Ia

    Forest Integral Biological Reserve

    7.68 km² overlap

  • Pointe Rouge - Morne Pavillon

    IUCN IV

    Biotope Protection Order

    6.62 km² overlap

  • Presqu\'Île De La Caravelle

    IUCN IV

    National Nature Reserve

    3.84 km² overlap

  • La Caravelle

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    2.67 km² overlap

  • Morne Aca - Pointe Borgnese

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    2.47 km² overlap

  • Marine Du Prêcheur - Albert Falco

    IUCN IV

    Regional Nature Reserve

    2.41 km² overlap

  • Cap Salomon

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    2.20 km² overlap

  • Etang des Salines

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    2.02 km² overlap

  • Macabou

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    1.38 km² overlap

  • Etangs des Salines

    IUCN III

    Specially Protected Area (Cartagena Convention)

    1.21 km² overlap

  • Baie Des Anglais

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    1.15 km² overlap

  • Les Salines

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    1.01 km² overlap

  • Morne Caritan

    IUCN IV

    Biotope Protection Order

    1.00 km² overlap

  • Morne Pavillon

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    0.90 km² overlap

  • Morne Larcher

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    0.82 km² overlap

  • Ilet Chancel

    IUCN IV

    Biotope Protection Order

    0.73 km² overlap

  • Morne Belfond

    IUCN IV

    Biotope Protection Order

    0.69 km² overlap

  • Bois Pothau - Pointe Banane

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    0.64 km² overlap

  • Pointe De Massy-Massy

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    0.62 km² overlap

  • Saline De Trois Rivieres

    IUCN IV

    Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)

    0.60 km² overlap

  • Bois La Charles

    IUCN IV

    Biotope Protection Order

    0.55 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

10 820 distinct species · 155 688 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

155 688 obs · 40 cellules
Obs. / cellule
≥ 28 312
9 066–28 311
3 731–9 065
2 289–3 730
< 2 289

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 45 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 Bassin de la Lézarde : 39 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 35 interactions GloBI sur 4 types (connectance 3.5%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
45
Interactions affichées
35
Connectance
0.035
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

24,9°C

Annual rain

2 288mm

Moisture idx (CMI)

0,36

Runoff

959mm/an

PET

1 335mm

AET

1 232mm

Mean slope

8,6°

Water table

284cm

Forest

19%

Crops

3%

Urban

17%

Protected

61%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)