UNESCO-MAB Biosphere Reserve · cmr
Dja
- Area
- 6 210 km²
- IUCN cat.
- Not Applicable
- Year
- 1981
Overview
- Designation
- UNESCO-MAB Biosphere Reserve
- Established
- 1981
- Managing authority
- State/ECOFAC
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
2 140 distinct species · 7 839 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Dja : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 30 interactions GloBI sur 3 types (connectance 5.7%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology24 basins · 0 lakes · 34 rivers
Hydrology metrics for this exact territory
Stream length here
968,9km
Basins crossed
24
Max stream order
6
Max drainage
20 589km²
Discharge in basins
823,9m³/s
Mean precip.
1 631mm/an
Mean T°
23,4°C
Moisture idx
0,03
Mean runoff
402mm/an
Mean elev. (basins)
659m
Watersheds crossing here
- Bassin de Djasub-area1 754,4 km²overlap795.22 km²13%
- Basin #70940sub-area730,8 km²overlap727.61 km²12%
- Bassin de Makoumsub-area753,6 km²overlap714.77 km²12%
- Bassin de Miensub-area1 169,1 km²overlap634.22 km²10%
- Bassin de Longsub-area465,7 km²overlap463.68 km²7%
- Bassin de Biéboulasub-area421,8 km²overlap419.89 km²7%
- Bassin de Ondja'asub-area332,9 km²overlap331.43 km²5%
- Bassin de Mouousub-area330 km²overlap328.55 km²5%
- Bassin de Ndjasub-area318,3 km²overlap316.87 km²5%
15 more basinssorted by overlap
- Bassin de Djasub-area673,8 km²overlap307.20 km²5%
- Bassin de Djasub-area533,9 km²overlap255.00 km²4%
- Bassin de Djasub-area403,6 km²overlap176.46 km²3%
- Bassin de Djasub-area1 801,8 km²overlap173.25 km²3%
- Bassin de Djasub-area424,3 km²overlap126.08 km²2%
- Bassin de Djasub-area921,3 km²overlap96.78 km²2%
- Bassin de Djasub-area181,7 km²overlap92.25 km²1%
- Bassin de Djasub-area191 km²overlap70.04 km²1%
- Bassin de Djasub-area96,1 km²overlap53.44 km²1%
- Bassin de Djasub-area101,4 km²overlap49.14 km²1%
- Bassin de Djasub-area62,6 km²overlap38.34 km²1%
- Bassin de Fésub-area275,7 km²overlap25.50 km²0%
- Bassin de Djasub-area351,7 km²overlap6.38 km²0%
- Bassin de Djasub-area43,8 km²overlap5.85 km²0%
- Bassin de Djasub-area9,8 km²overlap2.13 km²0%
Rivers / streams (34, ord ≥ 4)
- Djaord 6len here182.74 km13%total1414 km
- Makoumord 3len here70.83 km92%total77 km
- Mienord 5len here61.54 km52%total118 km
- Ondja'aord 6len here57.62 km98%total59 km
- Mououord 3len here57.32 km100%total58 km
- Ndjaord 6len here54.54 km97%total56 km
- Djableord 2len here46.20 km100%total46 km
- Simord 3len here38.25 km100%total38 km
- Djoméord 3len here37.84 km100%total38 km
- Mempaléord 3len here35.92 km98%total37 km
- Longord 3len here35.25 km100%total35 km
- Nlongord 3len here34.13 km100%total34 km
22 more river segmentssorted by Strahler order + length
- Ngouéméord 6len here25.99 km89%total29 km
- Sabeord 2len here24.57 km66%total37 km
- Djulord 2len here20.80 km100%total21 km
- Woutouord 3len here20.35 km97%total21 km
- Mieord 2len here18.75 km98%total19 km
- Bisaord 2len here18.26 km100%total18 km
- Swoméord 2len here17.96 km100%total18 km
- Ndwonord 2len here14.80 km100%total15 km
- Otonnandorord 2len here13.70 km100%total14 km
- Loord 4len here11.92 km92%total13 km
- Edjanéord 2len here10.57 km100%total11 km
- Bokoulouord 1len here7.89 km100%total8 km
- Koungord 2len here7.80 km96%total8 km
- Tièpord 1len here7.45 km100%total7 km
- Ampiaord 1len here6.07 km100%total6 km
- Mampomoord 2len here5.91 km100%total6 km
- Maompaléord 1len here5.53 km100%total6 km
- Biéboulaord 3len here5.33 km100%total5 km
- Tiliord 1len here4.92 km100%total5 km
- Beléord 1len here4.33 km100%total4 km
- Mépiaord 1len here2.94 km100%total3 km
- Ayolébamord 1len here0.93 km24%total4 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 3.11034, 13.03599
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.