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Average variation in butterfly populations in agricultural environments

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12/19/2024
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1/9/2017
Yes
Finnish Environment Institute (SYKE)
Luke_Ind_Perhoset_01
Luke/Tilastot
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Changes in butterfly populations indicate the ecological state of the agricultural environment. Butterfly populations react more quickly to changes in their local environment than bird populations and, as a result, indicate any changes in agricultural environments. Butterfly populations have been monitored in Finland since 1999. Weather conditions in the middle of summer largely explain this variation. Due to annual variation and the short duration of the monitoring period, it is not currently possible to draw any major conclusions of the development of butterfly populations. In the indicator, the year 2001 is 1.0. The general index includes 45 species.
Link: Monitoring butterflies