Strongylognathus arnoldii
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Strongylognathus_arnoldii
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Strongylognathus arnoldii faces severe population declines due to habitat fragmentation and loss of suitable nesting sites in its specialized grassland and heathland environments. The species' obligate social parasitic lifestyle makes it particularly vulnerable, as it depends entirely on specific host ant species (primarily Tetramorium caespitum) for colony establishment and survival. Agricultural intensification and urban development have reduced both the availability of appropriate microhabitats and the density of host colonies, creating a cascading effect that threatens the species' reproductive success.
Habitat
Strongylognathus arnoldii inhabits dry grasslands, heathlands, and sandy areas with sparse vegetation, typically in areas with well-drained soils. The species requires specific microhabitats that support both its own nesting requirements and those of its obligate host ant species, Tetramorium caespitum.
