Reference:
Talavera, Gerard & Vila, Roger. (2016). Discovery of mass migration and breeding of the painted lady butterfly Vanessa cardui in the Sub-Sahara: The Europe-Africa migration revisited. Biological Journal of the Linnean Society. 10.1111/bij.12873.URL:
https://www.researchgate.net/publication/308382392_Discovery_of_mass_migration_and_breeding_of_the_painted_lady_butterfly_Vanessa_cardui_in_the_Sub-Sahara_The_Europe-Africa_migration_revisitedReferences
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