VU

bredsnabelmattevever

Centromerus semiater

Unknown

Overview

The bredsnabelmattevever (Centromerus semiater) is a small sheet weaver spider characterized by its distinctive broad, flattened chelicerae and matte black coloration with subtle brownish markings. This diminutive arachnid plays a crucial role in controlling populations of small arthropods in its specialized microhabitat, constructing delicate horizontal sheet webs near ground level.

Centromerus semiater faces significant threats from habitat degradation and fragmentation due to agricultural intensification and urban development across its European range. Climate change poses additional risks by altering the microhabitat conditions essential for this small spider species, while pesticide use in agricultural areas directly impacts both the species and its prey base.

Threat summary

Habitat

This species inhabits leaf litter, low vegetation, and soil layers in deciduous and mixed forests, woodland edges, and semi-natural grasslands across temperate European regions. It shows preference for areas with stable moisture levels and organic matter accumulation.

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Frequently asked questions

Why is bredsnabelmattevever classified as Vulnerable?
bredsnabelmattevever 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. Centromerus semiater faces significant threats from habitat degradation and fragmentation due to agricultural intensification and urban development across its European range. Climate change poses additional risks by altering the microhabitat conditions essential for this small spider species, while pesticide use in agricultural areas directly impacts both the species and its prey base.
Where does bredsnabelmattevever live?
bredsnabelmattevever occurs in Åland Islands, Belgium, Czechia, Denmark, Estonia, and Finland (plus 9 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 bredsnabelmattevever?
The main threats to bredsnabelmattevever 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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