Milkweeds (Asclepias spp.) are the sole hostplant for monarch butterflies (Danaus plexippus). Monarch caterpillars must consume milkweeds to survive. As monarchs are facing drastic declines, largely tied to loss of plant habitat, the Garden’s pollinator...
Join the February EcoQuest: Monarchs, Milkweeds and Mystery Find and map as many monarch butterflies (Danaus plexippus) and milkweed plants (Asclepias spp.) as possible. Monarch butterflies are in severe decline, with numbers from 2020 showing the lowest ever...
As monarch butterfly populations experience declines of up to 99% across the United States, and essential host milkweed habitat is lost to urbanization, critical conservation choices need to be made about these species and their interactions. At the DPEL, staff...
Lack of rain and hotter weather lead to record low butterfly season The monarch butterfly population is in decline. Due to their magnificent migration, almost all US monarchs are in a few locations during the winter, allowing biologists to count and estimate the...
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