Ontologia

Commune · NER

Dessa

Niger

BWhArid, desert, hot(100 %)

Species observed

29

Observations

56

Area

470,1km²

Ecological tissue

Sample of 4 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 Dessa : 4 espèces reliées par 2 interactions GloBI sur 2 types (connectance 33.3%, filtre Serrano α=0.2).

Espèces affichées
4
Interactions affichées
2
Connectance
0.333
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Species present

29 distinct species · 56 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

56 obs · 8 cellules
Obs. / cellule
≥ 27
27–26
8–26
3–7
< 3

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

Climate

Mean T°

30,0°C

Annual rain

321mm

Warmest m°

41,2°C

Coldest m°

15,5°C

Elevation: 219 m on average (min 207 m, max 234 m)

Bioclimatic detailsExpert
Annual mean temp.
30,0°C
Annual rain
321mm
Warmest month
41,2°C
Coldest month
15,5°C
Mean alt.
219m
Min
207m
Max
234m
Std. dev.
7m
Köppen-Geiger (dominant)
BWhArid, desert, hot(100 %)Arid

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

Soil & lithology

pH H₂O

6,4

Org. C

4,1g/kg

Clay

17,1%

Sand

62,3%

Silt

20,6%

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

Dominant lithology: ssGLiMaggregated to Tillabéry

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,4
Org. C
5,5g/kg
Clay
16,2%
Sand
63,1%
Silt
20,7%
5–15 cm
pH H₂O
6,4
Org. C
4,2g/kg
Clay
17,9%
Sand
61,6%
Silt
20,6%
15–30 cm
pH H₂O
6,5
Org. C
2,7g/kg
Clay
17,3%
Sand
62,2%
Silt
20,6%

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

Land cover

Forest3.3%
Crops38.4%
Built-up0.4%
Bare soil5.0%
Other (grassland, water…)52.9%

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

Hydrology10 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

80,2km

Basins crossed

10

Max stream order

8

Max drainage

613 303km²

Discharge in basins

1 528,3m³/s

Mean precip.

294mm/an

Mean T°

29,2°C

Moisture idx

-0,86

Mean runoff

12mm/an

Mean elev. (basins)

246m

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

1hab/km²

Night light

0,1nW

Built-up

41,7%

Pesticides

0,0kg/km²

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

Protected areas1

IUCN IV · 1

Kandadji

IUCN IV

Nature Reserve · 2017

12 011 km²

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN