Rundhoftet vandkalv
CR

Rundhoftet vandkalv

Dytiscus dimidiatus

Unknown

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

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Dytiscus dimidiatus faces severe population declines due to widespread habitat degradation and loss of suitable aquatic environments. The species is particularly vulnerable to water pollution, eutrophication, and drainage of wetlands for agricultural and urban development, which have significantly reduced the availability of clean, well-oxygenated water bodies essential for its survival.

Threat summary

Habitat

This diving beetle inhabits clean, well-oxygenated freshwater environments including ponds, lakes, slow-flowing streams, and marshes with abundant aquatic vegetation. The species requires stable water bodies with good water quality and minimal pollution, typically in lowland areas with rich invertebrate prey communities.

Other threatened species in Dytiscidae

soikojuovasukeltajaCR

soikojuovasukeltaja

Graptodytes granularis

Unknown
CR

Stictotarsus duodecimpustulatus

Unknown
CR

Porhydrus lineatus

Unknown
Nebrioporus depressusVU

Nebrioporus depressus

Unknown

Frequently asked questions

Why is Rundhoftet vandkalv classified as Critically Endangered?
Rundhoftet vandkalv 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. Dytiscus dimidiatus faces severe population declines due to widespread habitat degradation and loss of suitable aquatic environments. The species is particularly vulnerable to water pollution, eutrophication, and drainage of wetlands for agricultural and urban development, which have significantly reduced the availability of clean, well-oxygenated water bodies essential for its survival.
Where does Rundhoftet vandkalv live?
Rundhoftet vandkalv 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 Rundhoftet vandkalv?
The main threats to Rundhoftet vandkalv 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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