Bear-clawed Nomad Bee
CR

Bear-clawed Nomad Bee

Nomada baccata

UnknownNTEU

Photo: iNaturalist: (c) Henk Wallays, all rights reserved

Overview

The Bear-clawed Nomad Bee (Nomada baccata) is a distinctive cuckoo bee species characterized by its robust, bear-like claws and striking yellow and black coloration. As a brood parasite, it infiltrates the nests of solitary ground-nesting bees, laying its eggs in host cells where its larvae consume the provisions intended for the host's offspring. This specialized parasitic lifestyle makes it entirely dependent on healthy populations of its specific host bee species.

The Bear-clawed Nomad Bee faces severe population declines primarily due to habitat loss from agricultural intensification and urban development, which destroys the specialized nesting sites of its host bee species. Climate change and pesticide use further compound these pressures, disrupting the delicate ecological relationships this parasitic bee depends upon for survival.

Threat summary

Habitat

This species inhabits sandy heathlands, coastal dunes, and chalk downlands where its host bees construct their underground nests. It requires areas with sparse vegetation and exposed soil patches that provide optimal nesting conditions for ground-dwelling solitary bees.

Frequently asked questions

Why is Bear-clawed Nomad Bee classified as Critically Endangered?
Bear-clawed Nomad Bee 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. The Bear-clawed Nomad Bee faces severe population declines primarily due to habitat loss from agricultural intensification and urban development, which destroys the specialized nesting sites of its host bee species. Climate change and pesticide use further compound these pressures, disrupting the delicate ecological relationships this parasitic bee depends upon for survival.
Where does Bear-clawed Nomad Bee live?
Bear-clawed Nomad Bee occurs in Austria, Belarus, Belgium, Denmark, Estonia, and Finland (plus 11 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 Bear-clawed Nomad Bee?
The main threats to Bear-clawed Nomad Bee 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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