diknerfkribbenmos
CR

diknerfkribbenmos

Cinclidotus danubicus

UnknownLCEULCEU

Photo: iNaturalist: (c) petit_bonnier, some rights reserved (CC BY-NC)

Overview

Cinclidotus danubicus is a rare aquatic moss species with distinctive dark green to brownish cushion-like growth forms that create dense, ribbed mats along rocky substrates. This specialized bryophyte plays a crucial role in stabilizing riverbank sediments and providing microhabitat for invertebrate communities in fast-flowing water systems.

Cinclidotus danubicus, a moss species endemic to the Danube River basin, faces severe decline due to habitat degradation from river regulation and pollution. Dam construction and channelization have dramatically altered the natural flow regimes and substrate conditions essential for this aquatic moss. Water quality deterioration from agricultural runoff and industrial pollution further threatens the remaining populations.

Threat summary

Habitat

This moss is restricted to submerged and periodically exposed rocks in fast-flowing, calcium-rich rivers and streams with high water quality. It typically colonizes limestone or calcareous bedrock in montane and submontane river systems where water levels fluctuate seasonally.

Other threatened species in Pottiaceae

VU

Rufous Beard-moss

Bryoerythrophyllum ferruginascens

Unknown
Heim's PottiaVU

Heim's Pottia

Hennediella heimii

Unknown
VU

Yellow Crisp-moss

Tortella flavovirens

Unknown
VU

Whorled Tufa-moss

Eucladium verticillatum

Unknown

Frequently asked questions

Why is diknerfkribbenmos classified as Critically Endangered?
diknerfkribbenmos is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Cinclidotus danubicus, a moss species endemic to the Danube River basin, faces severe decline due to habitat degradation from river regulation and pollution. Dam construction and channelization have dramatically altered the natural flow regimes and substrate conditions essential for this aquatic moss. Water quality deterioration from agricultural runoff and industrial pollution further threatens the remaining populations.
Where does diknerfkribbenmos live?
diknerfkribbenmos occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to diknerfkribbenmos?
The main threats to diknerfkribbenmos are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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