Butterfly counts in Devon and Cornwall show strong numbers but warn of future decline
Experts analyzing data from the 2026 big butterfly count in Devon and Cornwall say current populations are high but fear a crash due to prolonged hot weather.
Recent survey results show strong numbers
Nearly 5,000 people participated in the count across Devon, recording 77,151 insects during the three-week period. Another 3,000 participants in Cornwall spotted 47,712 butterflies and moths. Officials described these summer totals as very good compared to previous years.
Scientists warn of extreme weather risks
Professor Richard Fox stated that adult butterflies benefit from heat but cautioned about the threat of drought. He noted that severe impacts occurred during droughts in 1976 and 1995, with some species failing to recover fully. The charity fears the full impact of current conditions may not be clear until next year.
Long term population trends remain poor
The charity reported that 80% of UK butterfly populations have declined since the 1970s. Many species are already struggling for survival without additional extreme weather pressures. Previous drought conditions may have caused food plants to wither before caterpillars finished feeding.
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