Radio telemetry reveals extensive dispersal capabilities of reintroduced Great Capricorn beetles (Cerambyx cerdo) in oak habitats at their Northern range limit

Amid accelerating global biodiversity loss, reintroducing and
translocating endangered species have become pivotal conservation
strategies. This study used radio telemetry to investigate the dispersal
and movement patterns of the reintroduced Great Capricorn Beetle (Cerambyx
cerdo) within Tromtö Nature Reserve, Sweden.We tracked 50 beetles (29
females, 21 males) from 17 June 2022 to 17 July 2022, quantified their
movements within the landscape, and recorded the distances moved across
oak-rich areas at the northern edge of the species’ range. Female beetles
were significantly larger and heavier than males, with longer antennae.
The beetles were relocated an average of 9.5 times. Total movement
distances ranged from 2.8 m to 822.2 m, with no significant association of
movement distance or movement speed with sex, body size or mating status.
We conclude that C. cerdo can reach oaks several hundred meters away and
that dispersal distances were not associated with sex, body size or mating
status. We recommend future studies employing more advanced telemetry
techniques to refine our understanding of the species movement ecology and
ensure successful reintroduction and survival.