Top 3 Regions Most Affected by Butterfly Shifts

Butterfly range shifts are occurring on every continent, but some regions, particularly in Europe and mountainous areas, show more pronounced and well-documented changes.

The top 3

  1. Europe: Highest Documented Range Shifts: Europe is a hotspot for butterfly range shifts, with countries like Sweden, Finland, Spain, Luxembourg, and the Czech Republic reporting shifts for over 50% of their local butterfly fauna.
  2. North America: Multidirectional Shifts Observed: In the Midwestern United States, butterflies are shifting their ranges in all directions, not just poleward, at a mean rate of 4.87 km per year, influenced by local climate change velocities.
  3. Mountainous Regions: Pronounced Altitudinal Climbs: Mountain ecosystems, especially in the Northern Hemisphere and regions like the Alps and Sierra Nevada, show significant upward shifts, with some lowland butterfly species moving over 300 meters uphill within decades.

Sources

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