Advances in understanding the long-term population decline of monarch butterflies
Agrawal AA. Proceedings of the National Academy of Sciences of the United States of America, March 2019.
Go to the paper May need a subscription · doi:10.1073/pnas.1903409116
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Milkweed USA. (2026). Advances in understanding the long-term population decline of monarch butterflies (listing). Retrieved DATE, from https://milkweedusa.com/research/advances-in-understanding-the-long-term-population-decline-of-2019/
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"Advances in understanding the long-term population decline of monarch butterflies (listing)." Milkweed USA, 2026, https://milkweedusa.com/research/advances-in-understanding-the-long-term-population-decline-of-2019/. Accessed DATE.
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Milkweed USA. "Advances in understanding the long-term population decline of monarch butterflies (listing)." Last modified 2026-08-01. Accessed DATE. https://milkweedusa.com/research/advances-in-understanding-the-long-term-population-decline-of-2019/.
BibTeX
@misc{milkweedusa_researchadvancesinunderstand,
title = {Advances in understanding the long-term population decline of monarch butterflies (listing)},
author = {{Milkweed USA}},
year = {2026},
url = {https://milkweedusa.com/research/advances-in-understanding-the-long-term-population-decline-of-2019/},
note = {Accessed DATE}
}