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17 paź 2024 · In 2021, the researchers trekked up the mountain to plant seedlings in biting cold temperatures—part of an effort to save the species from a climate-driven demise.
Monarch caterpillars feed on milkweed, the only plant on which the butterflies will lay their eggs. Milkweed plants have suffered as agricultural and industrial operations have grown significantly. Common herbicides and pesticides also create a toxic landing spot for monarchs on the remaining milkweed plants.
21 lip 2022 · The migratory monarch butterfly (Danaus plexippus plexippus) has entered the IUCN Red List as Endangered. The IUCN Red List now includes 147,517 species, of which 41,459 are threatened with extinction.
• Immediately protect monarchs under the federal Endangered Species Act. • Plant 1.5 billion milkweed plants to restore 100 million acres of monarch habitat. • Launch a long-term initiative to scale back harmful pesticides in monarch habitat and create “safe zones”
4 maj 2021 · What makes a flagship species effective in engaging conservation donors? Large, charismatic mammals are typically selected as ambassadors, but a few studies suggest butterflies—and monarchs in particular—may be even more appealing.
19 lip 2021 · Three hypotheses have been proposed to explain the changes observed in the eastern monarch population: loss of milkweed host plants from increased herbicide use, mortality during autumn migration...
26 lip 2022 · On July 21, 2022, the International Union for the Conservation of Nature placed the migratory monarch butterfly on its Red List of threatened species and classified it as endangered. Monarchs...
