Polyergus breviceps
VU

Polyergus breviceps

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Polyergus_breviceps

Overview

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

Polyergus breviceps faces significant threats from habitat fragmentation and loss of suitable nesting sites in its specialized prairie and grassland ecosystems. Urban development and agricultural conversion have reduced the availability of the open, sandy soils this slave-making ant species requires for colony establishment. Climate change poses additional risks by altering the distribution and abundance of its host ant species, particularly Formica species, upon which P. breviceps depends entirely for colony maintenance and brood care.

Threat summary

Habitat

Polyergus breviceps inhabits open prairie grasslands and sandy areas across the central United States, particularly favoring well-drained soils that support both its own colonies and those of its Formica host species. The species requires intact grassland ecosystems with minimal canopy cover and specific soil conditions that facilitate the complex social parasitic relationship with its ant hosts.

Frequently asked questions

Why is Polyergus breviceps classified as Vulnerable?
Polyergus breviceps 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. Polyergus breviceps faces significant threats from habitat fragmentation and loss of suitable nesting sites in its specialized prairie and grassland ecosystems. Urban development and agricultural conversion have reduced the availability of the open, sandy soils this slave-making ant species requires for colony establishment. Climate change poses additional risks by altering the distribution and abundance of its host ant species, particularly Formica species, upon which P. breviceps depends entirely for colony maintenance and brood care.
Where does Polyergus breviceps live?
Polyergus breviceps occurs in Canada, and 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 Polyergus breviceps?
The main threats to Polyergus breviceps 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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