Vallée de la Tretterbaach et affluents de la frontière à Asselborn
IUCN IVZPS - Natura 2000 · 2002
31 km²
Subdivision · BEL
Houffalize
Belgium
CfbTemperate, no dry season, warm summer(100 %)
Species observed
2 059
Observations
16 516
Area
170,6km²
Ecological tissue
Sample of 35 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 Houffalize : 23 espèces reliées par 102 interactions GloBI sur 4 types (connectance 14.5%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
38
Interactions affichées
102
Connectance
0.145
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
2 059 distinct species · 16 516 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
8,1°C
Annual rain
1 026mm
Warmest m°
20,1°C
Coldest m°
-2,3°C
Elevation: 442 m on average (min 305 m, max 600 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
8,1°C
Annual rain
1 026mm
Warmest month
20,1°C
Coldest month
-2,3°C
Mean alt.
442m
Min
305m
Max
600m
Std. dev.
54m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,5
Org. C
64,6g/kg
Clay
24,8%
Sand
21,5%
Silt
53,7%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Luxembourg
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,4
Org. C
93,7g/kg
Clay
24,2%
Sand
21,5%
Silt
54,2%
5–15 cm
pH H₂O
5,5
Org. C
69,9g/kg
Clay
24,3%
Sand
21,4%
Silt
54,3%
15–30 cm
pH H₂O
5,5
Org. C
30,2g/kg
Clay
25,8%
Sand
21,6%
Silt
52,6%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest45.1%
Crops25.9%
Built-up0.4%
Bare soil0.3%
Other (grassland, water…)28.3%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology4 basins · 0 lakes · 8 rivers
Hydrology metrics for this exact territory
Stream length here
56,9km
Basins crossed
4
Max stream order
4
Max drainage
1 259km²
Discharge in basins
2,2m³/s
Mean precip.
1 019mm/an
Mean T°
7,8°C
Moisture idx
0,34
Max snow
20%
Mean runoff
392mm/an
Mean elev. (basins)
464m
Watersheds crossing here
Rivers / streams (8, ord ≥ 4)
- L'Ourthe orientaleord 3len here19.70 km59%total33 km
- Ruisseau de Martin Moulinord 2len here9.27 km82%total11 km
- Ruisseau de Belle Meuseord 1len here7.78 km100%total8 km
- Ruisseau de Tavignyord 2len here6.99 km100%total7 km
- Ruisseau de Chevralord 1len here4.47 km93%total5 km
- Ruisseau de Sommerainord 1len here3.63 km100%total4 km
- Ruisseau de Cowanord 2len here3.52 km57%total6 km
- L'Ourtheord 5len here1.52 km3%total56 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,2nW
Built-up
43,2%
Pesticides
65,7kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas44
IUCN IV · 20IUCN Not Reported · 20IUCN II · 2IUCN VI · 2
Vallée de la Tretterbaach et affluents de la frontière à Asselborn
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2004
31 km²
Bassin inférieur de l'Ourthe orientale
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2016
24 km²
Bassin inférieur de l'Ourthe orientale
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2016
24 km²
Vallée de l'Ourthe entre Nisramont et La Roche
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2016
20 km²
Vallée de l'Ourthe entre Nisramont et La Roche
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2016
20 km²
Complete list44 protected areas
- Vallée de la Tretterbaach et affluents de la frontière à AsselbornZPS - Natura 2000IUCN IV200231 km²
- Vallée de la Tretterbaach et affluents de la frontière à AsselbornSpecial Protection Area (Birds Directive)IUCN Not Reported200431 km²
- Bassin inférieur de l'Ourthe orientaleSpecial Protection Area (Birds Directive)IUCN Not Reported201624 km²
- Bassin inférieur de l'Ourthe orientaleSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201624 km²
- Vallée de l'Ourthe entre Nisramont et La RocheSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201620 km²
- Vallée de l'Ourthe entre Nisramont et La RocheSpecial Protection Area (Birds Directive)IUCN Not Reported201620 km²
- Plateau des TaillesState Nature Reserve (Walloon Region)IUCN IV199911 km²
- Fagnes de Samrée et de TaillesSpecial Protection Area (Birds Directive)IUCN Not Reported20159 km²
- Fagnes de Samrée et de TaillesSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20159 km²
- Bassin inférieur de l'Ourthe occidentaleSpecial Protection Area (Birds Directive)IUCN Not Reported20148 km²
- Bassin inférieur de l'Ourthe occidentaleSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20148 km²
- Fagnes de BihainSpecial Protection Area (Birds Directive)IUCN Not Reported20147 km²
- Fagnes de BihainSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20147 km²
- Vallée de la TretterbaachZSC - Natura 2000IUCN IV20046 km²
- Vallée de la TretterbaachSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20095 km²
- Etangs de Longchamps et de NovilleSpecial Protection Area (Birds Directive)IUCN Not Reported20164 km²
- Etangs de Longchamps et de NovilleSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20164 km²
- Bassin supérieur de la WiltzSpecial Protection Area (Birds Directive)IUCN Not Reported20163 km²
- Bassin supérieur de la WiltzSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20163 km²
- Sources du Ruisseau de TavignySpecial Protection Area (Birds Directive)IUCN Not Reported20143 km²
- Sources du Ruisseau de TavignySpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20143 km²
- Troine/Hoffelt - SporbaachZSC - Natura 2000IUCN IV20041 km²
- SporbaachProtected AreaIUCN II20171 km²
- Hoffelt - KaleburnSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20091 km²
- Hoffelt - KaleburnZSC - Natura 2000IUCN IV20041 km²
- KaleburnProtected AreaIUCN II20171 km²
- Troine/Hoffelt - SporbaachSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20091 km²
- Hoffelt/SCC-601-07Reglemented drinking water protection zonesIUCN VI20211 km²
- Troine/SCC-601-01Reglemented drinking water protection zonesIUCN VI20210 km²
- Vallées de la Bellemeuse et de MincéeCertified Nature Reserve (Walloon Region)IUCN IV20120 km²
- Sol FagneCertified Nature Reserve (Walloon Region)IUCN IV19970 km²
- Prés du Haut SommerainState Nature Reserve (Walloon Region)IUCN IV20230 km²
- Bec du FeyiCertified Nature Reserve (Walloon Region)IUCN IV19970 km²
- Bernistap (Canal de)State Nature Reserve (Walloon Region)IUCN IV20020 km²
- VellereuxCertified Nature Reserve (Walloon Region)IUCN IV19970 km²
- Vallée du Martin MoulinCertified Nature Reserve (Walloon Region)IUCN IV20170 km²
- Fagne du CuréCertified Nature Reserve (Walloon Region)IUCN IV19970 km²
- Etang MacarCertified Nature Reserve (Walloon Region)IUCN IV19970 km²
- Vallée de l\'Ourthe orientale de Wibrin à NadrinState Nature Reserve (Walloon Region)IUCN IV20240 km²
- BoeurCertified Nature Reserve (Walloon Region)IUCN IV19970 km²
- CowanCertified Nature Reserve (Walloon Region)IUCN IV19970 km²
- RosetCertified Nature Reserve (Walloon Region)IUCN IV19970 km²
- Fonds d\'AchouffeState Nature Reserve (Walloon Region)IUCN IV20240 km²
- BuretCertified Nature Reserve (Walloon Region)IUCN IV19970 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN