Changes in butterfly and burnet moth communities in a steppe habitat over 140 years

January 1, 2026Open Access

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Key Points

The study aims to analyze long-term changes in butterfly and burnet moth communities in a European steppe habitat over the past 140 years.
Utilized a long-term dataset combining historical records and standardized field surveys from 2024.
Analyzed species composition and functional traits using presence-absence data across four time periods.
Employed community weighted means measurements and non-metric multidimensional scaling for analysis.
Found a significant species turnover with a Sørensen dissimilarity of 0.49, indicating substantial community changes.
Noted a decline in specialized xerothermophilic species while mobile and habitat generalist species increased.
Highlighted differences in species diversity between grazing areas and mowed fields, with grazed areas showing greater diversity.

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This analysis reveals shifts in butterfly and burnet moth communities over 140 years, indicating ecological impacts of land use changes.

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Jakob Brejcha (2026) studied this question.

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