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Walckenaeria stylifrons

Unknown

Overview

Walckenaeria stylifrons, known as the Flat-headed Dwarf Spider, is a minute arachnid measuring only 1-2mm in length with a characteristically flattened cephalic region. This tiny linyphiid spider plays an important ecological role as both predator of even smaller invertebrates and prey for larger arthropods in specialized microhabitat communities.

Walckenaeria stylifrons faces severe population declines primarily due to habitat destruction and fragmentation of its specialized wetland environments. Agricultural intensification, urban development, and changes in water management practices have significantly reduced the availability of suitable microhabitats this small spider requires for survival.

Threat summary

Habitat

This species inhabits the leaf litter layer and moss cushions of ancient deciduous forests, particularly favoring areas with high humidity and stable microclimatic conditions. It is typically found in undisturbed woodland floors with deep organic matter accumulation and minimal human disturbance.

Frequently asked questions

Why is Walckenaeria stylifrons classified as Endangered?
Walckenaeria stylifrons is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Walckenaeria stylifrons faces severe population declines primarily due to habitat destruction and fragmentation of its specialized wetland environments. Agricultural intensification, urban development, and changes in water management practices have significantly reduced the availability of suitable microhabitats this small spider requires for survival.
Where does Walckenaeria stylifrons live?
Walckenaeria stylifrons occurs in Austria, Belgium, Croatia, France, Germany, and Greece (plus 5 other countries). Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Walckenaeria stylifrons?
The main threats to Walckenaeria stylifrons 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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