Margined Colletes
VU

Margined Colletes

Colletes marginatus

UnknownLCEU

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

Overview

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

The Margined Colletes faces severe population declines primarily due to habitat loss from agricultural intensification and urban development across its European range. The species' specialized nesting requirements in sandy soils and dependence on specific flowering plants make it particularly vulnerable to landscape fragmentation. Climate change is altering the timing of flower blooms, potentially disrupting the synchronization between the bee's emergence and its preferred nectar sources.

Threat summary

Habitat

The Margined Colletes inhabits open sandy areas including coastal dunes, heathlands, and sandy grasslands across parts of Europe. The species requires bare or sparsely vegetated sandy soils for ground-nesting and access to diverse wildflower meadows for foraging.

Other threatened species in Colletidae

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Calidris ferrugineaVU

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Adonis BlueVU

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Lysandra bellargus

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Frequently asked questions

Why is Margined Colletes classified as Vulnerable?
Margined Colletes 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. The Margined Colletes faces severe population declines primarily due to habitat loss from agricultural intensification and urban development across its European range. The species' specialized nesting requirements in sandy soils and dependence on specific flowering plants make it particularly vulnerable to landscape fragmentation. Climate change is altering the timing of flower blooms, potentially disrupting the synchronization between the bee's emergence and its preferred nectar sources.
Where does Margined Colletes live?
Margined Colletes occurs in Armenia, Austria, Azerbaijan, Belgium, Czechia, and Denmark (plus 22 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 Margined Colletes?
The main threats to Margined 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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