Ruisseau· 3 segments
Alster
Crosses 3 administrative regions : Coburg, Haßberge, Hildburghausen
Total length
84km
Max discharge
0,4m³/s
Max Strahler
2
Segments matched
3
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
8 intersecting protected areas
Landscape Protection Area
Grünes Band Thüringen
IUCN IIINature monuments
Itz-, Rodach- und Baunachaue
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Itztal von Coburg bis Baunach
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Südlicher Itzgrund
IUCN VLandscape Protection Area
Wiesen im Grabfeld
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Alsteraue von der Landesgrenze bis zur Mündung
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Nature Reserve
1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 187 distinct species · 25 795 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 19 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 Alster : 11 espèces reliées par 28 interactions GloBI sur 3 types (connectance 16.4%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
84km
Max discharge
0,4m³/s
Max Strahler
2
Segments matched
3
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.