VU

Diplocardia zicsii

Unknown

Overview

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

Diplocardia zicsii faces severe habitat degradation from urban development and agricultural expansion across its limited range in California's Central Valley. The species' specialized soil requirements make it particularly vulnerable to ground disturbance from construction activities and intensive farming practices. Climate change poses an additional threat through altered precipitation patterns that affect soil moisture levels critical for this earthworm's survival.

Threat summary

Habitat

This earthworm species inhabits specific soil types in California's Central Valley, particularly in grassland and oak woodland ecosystems with well-drained, organic-rich soils. The species requires stable soil conditions with adequate moisture retention and minimal chemical contamination.

Wetlands (inland)· major

Conservation measures underway

Species recovery

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VU

Decachaetus erici

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Lyophyllum deliberatum

Unknown

Frequently asked questions

Why is Diplocardia zicsii classified as Vulnerable?
Diplocardia zicsii is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Diplocardia zicsii faces severe habitat degradation from urban development and agricultural expansion across its limited range in California's Central Valley. The species' specialized soil requirements make it particularly vulnerable to ground disturbance from construction activities and intensive farming practices. Climate change poses an additional threat through altered precipitation patterns that affect soil moisture levels critical for this earthworm's survival.
Where does Diplocardia zicsii live?
Diplocardia zicsii occurs in United States. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Diplocardia zicsii?
The main threats to Diplocardia zicsii 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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