What percentage of butterfly species are showing range shifts due to climate change?

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Nearly 80 Per Cent of Reported Butterfly Range Shifts Are Linked to Climate Change

Nearly 80 per cent of reported shifts in butterfly geographic ranges are associated with climate change and extreme weather events. While a significant proportion of species are exhibiting these shifts, comprehensive data on range changes is available for only about one in ten butterfly species globally. This highlights a substantial knowledge gap in understanding the full extent of climate change's impact on butterfly populations.
Climate Change as a Primary Driver of Range Shifts

Research indicates that climate change and extreme weather events are the principal factors behind almost 80 per cent of the observed changes in butterfly distribution. These climatic shifts are compelling species to move from their traditional habitats, often seeking cooler conditions at higher latitudes or altitudes. The study analysed over 1,700 species across 105 countries and territories, confirming the widespread nature of these range alterations.
Projected Range Reductions in Europe

Looking ahead, a 2024 study focusing on Europe projected significant impacts on butterfly populations. It found that if global temperatures continue to rise, 84 per cent of approximately 270 butterfly species examined in Europe could experience a reduction in their geographic range by the year 2080. This projection underscores the potential for severe habitat loss for many species in the coming decades.
Data Gaps and Understudied Regions

Despite the clear indications of climate-driven range shifts, documented data on how butterfly ranges are changing remains scarce for many species. Currently, only about one in ten butterfly species has such recorded data available. Furthermore, tropical regions, which host a vast diversity of butterfly life, remain largely understudied, limiting a complete global understanding of these ecological transformations.

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What percentage of butterfly species are showing range shifts due to climate change?

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