Spanish National Research Council

2024-06-10 @ 18.13.35 ∈ In English

Excessive vegetation in Arabia triggered massive butterfly migrations in 2019 across Europe and Africa: Study

Pollen analysis showed that butterflies collected in Scandinavia had visited flowers of typically Mediterranean or Eastern European plants, while those collected in the Iberian Peninsula showed pollen from Northern Europe.

2024-01-09 @ 12.49.58 ∈ In English

(The Catalan populations rely on postural thermoregulation, if I’m reading the study correctly.)

Study finds Spanish butterflies are better at regulating their body temperature than their British cousins

Butterflies in both countries switch from heat-seeking to heat-avoiding behavior once air temperatures reach approximately 22°C. [British populations depend] more on microclimates for thermoregulation than Catalan populations.