Western North American Monarchs: Spiraling into Oblivion or Adapting to a Changing Environment?
Monarch butterflies in western North America typically migrate each fall from the Pacific Northwest to overwintering sites in California. Winter 2020/21 saw the lowest number of overwintering western monarch butterflies ever recorded, but was also marked by a winter-breeding population in the San Fr...
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| Format: | Article |
| Language: | English |
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De Gruyter
2021-04-01
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| Series: | Animal Migration |
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| Online Access: | https://doi.org/10.1515/ami-2021-0002 |