Ontologia

Commune · NER

Karma

Niger

BWhArid, desert, hot(51 %)

Species observed

399

Observations

1 722

Area

1 282,7km²

Ecological tissue

Sample of 33 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 Karma : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 37 interactions GloBI sur 5 types (connectance 7.0%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
37
Connectance
0.070
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

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

Species present

399 distinct species · 1 722 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 722 obs · 23 cellules
Obs. / cellule
≥ 418
283–417
59–282
18–58
< 18

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

Climate

Mean T°

29,3°C

Annual rain

429mm

Warmest m°

40,3°C

Coldest m°

15,7°C

Elevation: 236 m on average (min 182 m, max 276 m)

Bioclimatic detailsExpert
Annual mean temp.
29,3°C
Annual rain
429mm
Warmest month
40,3°C
Coldest month
15,7°C
Mean alt.
236m
Min
182m
Max
276m
Std. dev.
24m
Köppen-Geiger (dominant)
BWhArid, desert, hot(51 %)Arid

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

Soil & lithology

pH H₂O

5,6

Org. C

3,5g/kg

Clay

18,4%

Sand

66,2%

Silt

15,4%

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

Dominant lithology: ssGLiMaggregated to Kollo

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,7
Org. C
4,2g/kg
Clay
16,1%
Sand
68,4%
Silt
15,5%
5–15 cm
pH H₂O
5,5
Org. C
3,4g/kg
Clay
18,3%
Sand
66,3%
Silt
15,4%
15–30 cm
pH H₂O
5,5
Org. C
2,9g/kg
Clay
20,9%
Sand
63,7%
Silt
15,3%

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

Land cover

Forest1.3%
Crops18.6%
Built-up0.3%
Bare soil22.1%
Other (grassland, water…)57.8%

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

Hydrology7 basins · 1 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

64,3km

Lake surface here

0,20km²

Basins crossed

7

Max stream order

8

Max drainage

668 059km²

Discharge in basins

254,2m³/s

Mean precip.

443mm/an

Mean T°

29,1°C

Moisture idx

-0,79

Mean runoff

23mm/an

Mean elev. (basins)

242m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,1nW

Built-up

30,5%

Pesticides

0,0kg/km²

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