Yllenus arenarius
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Yllenus arenarius faces severe habitat degradation due to coastal development and tourism infrastructure along Mediterranean shorelines. Sand extraction for construction projects directly destroys the specialized dune systems this jumping spider requires for survival. Climate change-induced sea level rise and increased storm intensity threaten to inundate remaining coastal habitats, while invasive plant species alter the native vegetation structure essential for the spider's hunting and reproduction.
Habitat
This specialized jumping spider inhabits coastal sand dunes and sandy beaches along the Mediterranean coast, particularly favoring areas with sparse vegetation and loose sandy substrates. The species requires specific microhabitat conditions including adequate prey availability and suitable sites for constructing silk retreats beneath stones or in vegetation.
Other threatened species in Salticidae
Threatened in Denmark
Frequently asked questions
Why is Yllenus arenarius classified as Vulnerable?
Where does Yllenus arenarius live?
What are the main threats to Yllenus arenarius?
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