Ontologia

Commune · IND

Saharsa

India

CwaTemperate, dry winter, hot summer(100 %)

Species observed

162

Observations

610

Area

1 689km²

Ecological tissue

Sample of 30 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 Saharsa : 23 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 40 interactions GloBI sur 3 types (connectance 9.2%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
40
Connectance
0.092
Patrimoniales
3
Plus dense que (national)0 %(top 100%)

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

Species present

162 distinct species · 610 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

610 obs · 24 cellules
Obs. / cellule
≥ 95
71–94
29–70
15–28
< 15

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

Climate

Mean T°

25,4°C

Annual rain

1 432mm

Warmest m°

36,3°C

Coldest m°

10,8°C

Elevation: 41 m on average (min 36 m, max 47 m)

Bioclimatic detailsExpert
Annual mean temp.
25,4°C
Annual rain
1 432mm
Warmest month
36,3°C
Coldest month
10,8°C
Mean alt.
41m
Min
36m
Max
47m
Std. dev.
3m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, hot summer(100 %)Temperate

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

7,0

Org. C

16,3g/kg

Clay

28,4%

Sand

31,2%

Silt

40,3%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: suGLiMaggregated to Saharsa

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,0
Org. C
23,6g/kg
Clay
27,8%
Sand
31,3%
Silt
40,9%
5–15 cm
pH H₂O
7,0
Org. C
15,0g/kg
Clay
28,2%
Sand
31,5%
Silt
40,3%
15–30 cm
pH H₂O
7,1
Org. C
10,2g/kg
Clay
29,3%
Sand
31,0%
Silt
39,7%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest8.8%
Crops76.7%
Built-up1.8%
Bare soil2.0%
Other (grassland, water…)10.7%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology13 basins · 9 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

171,7km

Lake surface here

4,86km²

Basins crossed

13

Max stream order

7

Max drainage

83 209km²

Discharge in basins

5 053,9m³/s

Mean precip.

1 135mm/an

Mean T°

25,1°C

Moisture idx

-0,28

Max snow

1%

Mean runoff

606mm/an

Mean elev. (basins)

49m

Watersheds crossing here

4 more basins

Lakes (9, top by area)

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

11hab/km²

Night light

1,5nW

Built-up

183,1%

Pesticides

2,0kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)