A hot and dry spring across the United Kingdom is anticipated to lead to a significant increase in butterfly and moth populations, with a charity predicting a "bumper year" for these insects. This positive outlook offers a glimmer of hope for insect species, many of which have experienced long-term declines.
Professor Helen Roy, from the UK Centre for Ecology and Hydrology and the University of Exeter, noted that the favorable weather conditions this spring have resulted in a greater variety and abundance of butterflies. While this is good news for butterflies, it may also indicate that other insect species are thriving.
The decline in butterfly populations, which began in the 1970s, has largely been attributed to the destruction and degradation of their natural habitats. However, recent years have seen a rise in conservation initiatives aimed at reversing this trend.
Professor Roy expressed encouragement regarding the impact of measures such as "No Mow May," a campaign that encourages people to refrain from mowing their lawns, allowing grassy areas to grow wild. This practice provides more opportunities for butterflies to feed and breed. She suggested that individuals can contribute to insect conservation by allowing their gardens to become "messy" and more biodiverse. The creation of such "havens" can form a vital network across the country, supporting insect populations.
The Big Butterfly Count, a citizen science initiative, will take place from July 17 to August 9, 2026. Participants are invited to select a location and spend 15 minutes each day observing and counting the butterflies and moths they see. The data collected can be logged via the initiative's website or app, contributing to a larger understanding of insect populations.
