Northern Colletes
CR

Northern Colletes

Colletes floralis

UnknownVUEU

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

Overview

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

Northern Colletes faces severe population declines due to habitat loss from agricultural intensification and urban development destroying the specialized nesting sites and floral resources this solitary bee requires. Climate change is altering flowering phenology of key plant species, creating temporal mismatches between bee emergence and nectar availability, while pesticide use in agricultural landscapes poses additional mortality risks.

Threat summary

Habitat

Northern Colletes inhabits sandy coastal areas, heathlands, and open grasslands where it constructs underground nests in well-drained sandy soils. The species requires proximity to specific flowering plants including asters and other late-season composites that provide essential pollen and nectar resources.

Other threatened species in Colletidae

Margined ColletesVU

Margined Colletes

Colletes marginatus

Unknown
VU

Colletes dimidiatus

Unknown
VU

franscitronbi

Hylaeus difformis

Unknown
Colletid beeCR

Colletid bee

Hylaeus pictipes

Unknown

Threatened in Afghanistan

Calidris ferrugineaVU

Calidris ferruginea

Declining
small mallowVU

small mallow

Malva pusilla

Unknown
Tiger SawgillCR

Tiger Sawgill

Lentinus tigrinus

Unknown
EN

Malus komarovii

Declining

Frequently asked questions

Why is Northern Colletes classified as Critically Endangered?
Northern Colletes is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Northern Colletes faces severe population declines due to habitat loss from agricultural intensification and urban development destroying the specialized nesting sites and floral resources this solitary bee requires. Climate change is altering flowering phenology of key plant species, creating temporal mismatches between bee emergence and nectar availability, while pesticide use in agricultural landscapes poses additional mortality risks.
Where does Northern Colletes live?
Northern Colletes occurs in Afghanistan, Åland Islands, Austria, Denmark, Estonia, and Finland (plus 23 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 Northern Colletes?
The main threats to Northern Colletes 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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