Ontologia

HydroBASINS lev08 watershed · #2080068520

Bassin de Царев

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 5 administrative regions : Astrakhan', Kamyzyakskiy rayon, Krasnoyarskiy rayon, Narimanovskiy rayon, Privolzhskiy rayon

2% lakePfafstetter: 28299006

Sub-basin area

1 008,3km²

Upstream area

1 008,3km²

Discharge

1,67m³/s

Mean elev.

-26m

Administrative coverage

5 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Volga Delta

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    153.36 km² overlap

  • Zimoval`nye yamy 2

    IUCN Ia

    Natural Protected Area

    0.03 km² overlap

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

Species present

352 distinct species · 889 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

889 obs · 26 cellules
Obs. / cellule
≥ 118
101–117
42–100
23–41
< 23

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

Ecological tissue

Sample of 41 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 Царев : 32 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 98 interactions GloBI sur 5 types (connectance 11.4%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
98
Connectance
0.114
Patrimoniales
3
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°

10,2°C

Annual rain

212mm

Moisture idx (CMI)

-0,79

Runoff

7mm/an

PET

988mm

AET

190mm

Mean slope

0,1°

Water table

11cm

Forest

8%

Crops

7%

Urban

8%

Protected

0%

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