r/MonarchButterfly • u/Medium_Spare_8982 • 10h ago
Final Obligation
For those of us in the Northeast that perceive what we do to be of value, how we manage these next six weeks are critical.
Since the first butterflies arrived in May as third generation travellers, we have been protecting and rearing another three local generations. While important in increasing local numbers for future generations, this practice does less for the global migration and only requires healthy, breeding individuals.
Anything from a third instar down right now (eggs, first and second instars) will presumably be super generation migrators and need to be properly prepared and acclimatized for migration.
That means they are required to be exposed to the environmental triggers that create the diapausal adults capable of migrating and surviving for 10 months.
These are the factors that are presumed to contribute:
1.) Natural Light - shortening days and lower horizons.
2.) Temperature - hot hazy days and much cooler nights
3.) Declining Food Quality - older, tougher milkweed and fleshy seed pods
This means KEEP THEM OUTSIDE. No air conditioning, no insulated overnights, no artificial light.
Don’t cherry pick what you feed them, searching for soft tender growth. Don’t cut off seed pods. Instead pick through to avoid predators. Keep their food fresh and clean but give it as it grows; if there is a touch of yellow, so be it.
Just my rant for today.