Wümmeniederung
IUCN Not ReportedSite of Community Importance (Habitats Directive) · 2004
86 km²
District · DEU
Osterholz
Germany
CfbTemperate, no dry season, warm summer(100 %)
Species observed
3 360
Observations
66 583
Area
653,2km²
Ecological tissue
Sample of 41 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 Osterholz : 32 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 110 interactions GloBI sur 6 types (connectance 13.4%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
41
Interactions affichées
110
Connectance
0.134
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
3 360 distinct species · 66 583 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
9,4°C
Annual rain
823mm
Warmest m°
21,7°C
Coldest m°
-0,5°C
Elevation: 13 m on average (min -1 m, max 46 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
9,4°C
Annual rain
823mm
Warmest month
21,7°C
Coldest month
-0,5°C
Mean alt.
13m
Min
-1m
Max
46m
Std. dev.
12m
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
5,4
Org. C
97,7g/kg
Clay
16,8%
Sand
55,2%
Silt
27,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,3
Org. C
121,7g/kg
Clay
17,1%
Sand
54,5%
Silt
28,4%
5–15 cm
pH H₂O
5,4
Org. C
95,2g/kg
Clay
15,7%
Sand
56,2%
Silt
28,1%
15–30 cm
pH H₂O
5,5
Org. C
76,2g/kg
Clay
17,6%
Sand
55,1%
Silt
27,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest22.6%
Crops42.1%
Built-up1.3%
Bare soil0.5%
Other (grassland, water…)33.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology5 basins · 2 lakes · 44 rivers
Hydrology metrics for this exact territory
Stream length here
158,1km
Lake surface here
0,50km²
Basins crossed
5
Max stream order
7
Max drainage
44 776km²
Discharge in basins
251,4m³/s
Mean precip.
740mm/an
Mean T°
8,6°C
Moisture idx
0,05
Max snow
14%
Mean runoff
437mm/an
Mean elev. (basins)
21m
Watersheds crossing here
Lakes (2, top by area)
Rivers / streams (44, ord ≥ 4)
- Giehler Bachord 1len here19.36 km100%total19 km
- Semkenfahrtord 3len here8.03 km100%total8 km
- Hammeord 3len here7.86 km100%total8 km
- Niederender Kanalord 1len here7.63 km100%total8 km
- Nördliche Abzweigungord 1len here7.48 km100%total7 km
- Graben Butendeker Holzord 2len here7.25 km93%total8 km
- Schönebecker Aueord 1len here7.10 km71%total10 km
- Mevenstedter Schiffgrabenord 1len here5.93 km100%total6 km
- Wittehüllengrabenord 2len here5.62 km98%total6 km
- Blumenthaler Aueord 2len here5.55 km73%total8 km
- Eickedorfer Grabenord 2len here4.68 km86%total5 km
- Wörpedahler Grabenord 3len here4.54 km100%total5 km
32 more river segmentssorted by Strahler order + length
- Meyenburger Mühlengrabenord 1len here4.54 km100%total5 km
- Torfkanalord 2len here4.51 km100%total5 km
- Rummeldeisbeekord 2len here3.94 km22%total18 km
- Käseburger Sieltieford 7len here3.58 km21%total17 km
- Neuer Speckgrabenord 1len here3.41 km100%total3 km
- Schmooord 3len here3.29 km100%total3 km
- Speckgrabenord 2len here3.01 km100%total3 km
- Waakhauser Kanalord 3len here2.75 km100%total3 km
- Wienbeckord 1len here2.74 km100%total3 km
- Pferdegrabenord 1len here2.74 km100%total3 km
- Deichkampfleetord 3len here2.74 km100%total3 km
- Tüschendorf-Worphauser Grabenord 1len here2.64 km100%total3 km
- Kollbeckord 2len here2.60 km75%total3 km
- Aschwardener Flutgrabenord 2len here2.50 km100%total2 km
- Weserord 7len here2.49 km1%total394 km
- Oldendorfer Bachord 1len here2.15 km66%total3 km
- Hunnegrabenord 1len here2.09 km100%total2 km
- Reithbachord 4len here1.92 km24%total8 km
- Garbades Grabenord 4len here1.88 km14%total14 km
- Billerbeckord 1len here1.64 km62%total3 km
- Königsmoorgrabenord 1len here1.58 km7%total23 km
- Alte Weserord 7len here1.43 km31%total5 km
- Kirchflethord 1len here1.35 km100%total1 km
- Ritterhuder Beekeord 1len here1.28 km100%total1 km
- Weser (Rechter Nebenarm)ord 7len here1.16 km101%total1 km
- Beekord 2len here1.00 km100%total1 km
- Wurthfleter Flethord 2len here0.77 km15%total5 km
- Ableiter 90ord 1len here0.45 km17%total3 km
- Beckedorfer Beekeord 1len here0.44 km35%total1 km
- Lesumord 7len here0.36 km22%total2 km
- Kuhfleethord 1len here0.10 km2%total4 km
- Luneord 3len here≈ tangenttotal22 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,6nW
Built-up
129,3%
Pesticides
31,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas65
IUCN V · 25IUCN IV · 23IUCN Not Reported · 17🌊 Marine · 9
Hammeniederung
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2001
63 km²
Untere Wümmeniederung, untere Hammeniederung mit Teufelsmoor
IUCN Not ReportedSite of Community Importance (Habitats Directive) · 2004
41 km²
Tideweser
IUCN IVNature Reserve · 2019
40 km²
Unterweser
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2001
38 km²
Unterweser
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2019
35 km²
Complete list65 protected areas
- WümmeniederungSite of Community Importance (Habitats Directive)IUCN Not Reported200486 km²
- HammeniederungSpecial Protection Area (Birds Directive)IUCN Not Reported200163 km²
- Untere Wümmeniederung, untere Hammeniederung mit TeufelsmoorSite of Community Importance (Habitats Directive)IUCN Not Reported200441 km²
- TideweserNature ReserveIUCN IV201940 km²
- UnterweserSpecial Protection Area (Birds Directive)IUCN Not Reported200138 km²
- UnterweserSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201935 km²
- HammeniederungLandscape Protection AreaIUCN V201933 km²
- BlocklandSpecial Protection Area (Birds Directive)IUCN Not Reported199332 km²
- Blockland - Burgdammer WiesenLandscape Protection AreaIUCN V200929 km²
- HammeniederungNature ReserveIUCN IV201929 km²
- Wümmeniederung mit Dünen und SeitentälernLandscape Protection AreaIUCN V201226 km²
- Bremer SchweizLandscape Protection AreaIUCN V202124 km²
- Schmidt\'s Kiefern und HeidhofLandscape Protection AreaIUCN V202123 km²
- TeufelsmoorNature ReserveIUCN IV201919 km²
- Nebenarme der Weser mit Strohauser Plate und JuliusplateSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported201816 km²
- Bremen 1968 39. ÄnderungLandscape Protection AreaIUCN V202214 km²
- WorpswedeLandscape Protection AreaIUCN V201714 km²
- Giehler BachLandscape Protection AreaIUCN V202112 km²
- TeufelsmoorLandscape Protection AreaIUCN V201911 km²
- UnterwesermarschLandscape Protection AreaIUCN V20239 km²
- Buchholzer und Wilstedter MoorLandscape Protection AreaIUCN V19877 km²
- HeimelbergLandscape Protection AreaIUCN V20197 km²
- Borgfeld-Timmersloh, Warf, KuhweideLandscape Protection AreaIUCN V20157 km²
- UnterwesermarschNature ReserveIUCN IV20236 km²
- TeichfledermausgewässerNature ReserveIUCN IV20186 km²
- Truper BlänkenLandscape Protection AreaIUCN V20215 km²
- Truper BlänkenNature ReserveIUCN IV20215 km²
- Untere WümmeSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20095 km²
- Teichfledermaus-Gewässer im Raum Bremerhaven/BremenSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20184 km²
- Weser zwischen Ochtummündung und RekumSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20144 km²
- Niederungen von Billerbeck und Oldendorfer BachSite of Community Importance (Habitats Directive)IUCN Not Reported20074 km²
- Tideweser vor Nordenham und BrakeLandscape Protection AreaIUCN V20194 km²
- Billerbeck und Oldendorfer BachNature ReserveIUCN IV20213 km²
- Hammelwarder SandLandscape Protection AreaIUCN V20223 km²
- Garlstedter Heide- und Moorlandschaft mit Heidhofer TeichenNature ReserveIUCN IV20213 km²
- Garlstedter Moor und Heidhofer TeicheSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20213 km²
- Heilsmoor und SpringmoorNature ReserveIUCN IV20213 km²
- Springmoor, HeilsmoorSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20212 km²
- Untere WümmeNature ReserveIUCN IV20192 km²
- Untere Wümme 1. ÄnderungsverordnungNature ReserveIUCN IV19912 km²
- BredbeckLandscape Protection AreaIUCN V19901 km²
- FindorffschanzeLandscape Protection AreaIUCN V20171 km²
- Mittlere Billerbeckniederung mit NebenbächenNature ReserveIUCN IV20181 km²
- LesumSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20141 km²
- Schönbecker AueNature ReserveIUCN IV20211 km²
- Schönebecker AueSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20211 km²
- Quelltäler der WienbeckNature ReserveIUCN IV20041 km²
- Sterbrucher MoorLandscape Protection AreaIUCN V19831 km²
- Heerweger Moor und Quellbereiche der Ritterhuder BeekeNature ReserveIUCN IV19911 km²
- ReithbruchSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20031 km²
- Untere WörpeNature ReserveIUCN IV20201 km²
- Teichfledermausgewässer in der Gemeinde SchwanewedeNature ReserveIUCN IV20231 km²
- BeekniederungLandscape Protection AreaIUCN V20190 km²
- Hammersbecker WiesenNature ReserveIUCN IV19860 km²
- Oberlauf des Scharmbecker BachesLandscape Protection AreaIUCN V19900 km²
- KlosterholzLandscape Protection AreaIUCN V19690 km²
- Butendieker GehölzLandscape Protection AreaIUCN V19690 km²
- Binnendüne BockhornLandscape Protection AreaIUCN V20190 km²
- Obere IhleniederungNature ReserveIUCN IV19880 km²
- Heide und Moor bei HaslahNature ReserveIUCN IV19840 km²
+ 5 protected areas (top 60 shown)
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN