Data from: Long-term trends in the occupancy of ants revealed through use of multi-sourced datasets

We combined participatory science data and museum records to
understand long-term changes in occupancy for 29 ant species in
Denmark over 119 years. Bayesian occupancy modelling indicated
change in occupancy for 15 species: five increased, four declined
and six showed fluctuating trends. We consider how trends may
have been influenced by life-history and habitat changes. Our
results build on an emerging picture that biodiversity change in
insects is more complex than implied by the simple insect decline
narrative.