[Leps-l] Monarchs - subspecies, genetics and migration

[Taylor Jr, Orley R]

There was a recent thread dealing with these topics. Sorry, I lost that thread, but here are some references that speak to those issues.

The genetics of monarch butterfly migration and warning colouration
Published in Nature on October 16, 2014

Non-migratory monarch butterflies, Danaus plexippus (L.), retain developmental plasticity and a navigational mechanism associated with migration 
Micah G Freedman,  Hugh Dingle,  Christine A Tabuloc,  Joanna C Chiu, Louie H Yang,  Myron P Zalucki
Biological Journal of the Linnean Society, Volume 123, Issue 2, February 2018, Pages 265–278, https://doi.org/10.1093/biolinnean/blx148
Published: 21 December 2017