Ontologia

HydroBASINS lev08 watershed · #2080016840

Bassin du Tech

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 2 administrative regions across 2 countries : Girona, Pyrénées-Orientales

Coastal basin 5% lakePfafstetter: 21603505

Sub-basin area

1 508,2km²

Upstream area

1 508,2km²

Discharge

0,05m³/s

Mean elev.

432m

Administrative coverage

2 dept-equivalent regions (GADM L2)

77 communes (GADM L5)

30 intersecting protected areas

  • Cap de Creus

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    119.02 km² overlap

  • Cap de Creus

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    119.02 km² overlap

  • Cap de Creus

    IUCN V

    Protection Plan

    119.00 km² overlap

  • Cap de Creus

    IUCN V

    Natural Park

    119.00 km² overlap

  • Canigou-conques de La Preste

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    84.88 km² overlap

  • Conque de la Preste

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    82.47 km² overlap

  • Massif des Albères

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    68.05 km² overlap

  • Massif des Albères

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    66.90 km² overlap

  • L'Albera

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    59.40 km² overlap

21 more protected areas

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

Species present

19 156 distinct species · 1 256 057 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 256 057 obs · 41 cellules
Obs. / cellule
≥ 168 392
72 237–168 391
35 005–72 236
22 421–35 004
< 22 421

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

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin du Tech : 29 espèces + 6 bulles famille, 52 interactions GloBI documentées sur 5 types (connectance 8.7%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
35
Interactions affichées
52
Connectance
0.087
Patrimoniales
0
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°

13,4°C

Annual rain

728mm

Moisture idx (CMI)

-0,18

Runoff

380mm/an

PET

896mm

AET

575mm

Mean slope

11,1°

Water table

394cm

Forest

72%

Crops

13%

Urban

11%

Protected

17%

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