Newsletters and Literature

Newsletter Archive

The AMC sends out a monthly e-newsletter with information about current news and activities within the AMC community, and news, upcoming events, and research from the monarch and pollinator community. Visit our homepage to sign up for our mailing list.

2024

January

February

March





2023

2020

2021

2022

2020 Articles and Reports

"Our quasi-extinction threshold collected from the literature ranged between 20,000 and 50,000 butterflies. Across this range, the probability of quasi-extinction for the western monarch population reached 99.99% (99.98–100.0) by 50 years in both the “current” or baseline model and all future scenarios tested."  (NOTE: The western monarch population was estimated at 28,429 monarchs in 2018)

"In the western population, further protecting overwintering grounds and nectar resources could cause a large and positive population response by the species. However, those changes would need to be greater in scope than what our analysis viewed as plausible." 

2019 Articles and Reports

"Our quasi-extinction threshold collected from the literature ranged between 20,000 and 50,000 butterflies. Across this range, the probability of quasi-extinction for the western monarch population reached 99.99% (99.98–100.0) by 50 years in both the “current” or baseline model and all future scenarios tested."  (NOTE: The western monarch population was estimated at 28,429 monarchs in 2018)

"In the western population, further protecting overwintering grounds and nectar resources could cause a large and positive population response by the species. However, those changes would need to be greater in scope than what our analysis viewed as plausible." 

2018 Articles and Reports

Crone_et_al-2019-Ecological_Applications (2).pdf