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In the years leading up to their rapid decline in the 1990s, observers along their migratory routes could witness the remarkable sight of dozens to hundreds of bright orange monarch butterflies ...
The U.S. Fish and Wildlife Service is pushing for added protections for the monarch butterfly after seeing a population decline of about 80%. The service announced a proposal to list the butterfly ...
Monarch butterflies, known for migrating thousands of miles (km) across North America, have experienced a decades-long U.S. population decline due to habitat loss caused by human activities such ...
By 2018, however, a study correlated monarch butterfly decline to the fact that 95% of corn and soybean crops grown in the United States were using genetically modified seeds resistant to the herbicide glyphosate. This meant that instead of spreading the herbicide only prior to seed planting, now farmers could have the herbicide spread a second ...
As part of its targeted monarch butterfly effort, the USDA's Natural Resources Conservation Service (NRCS) works with agricultural producers in the midwest and southern Great Plains to combat the decline of monarch butterflies by planting milkweed and other nectar-rich plants on private lands. The NRCS also provides region-specific guides and ...
A loss in butterflies also means a loss in biological wealth. Butterflies are known as the "flying flower' [39] as they are beautiful and carry a large aesthetic value. Dwindling numbers and the following decline of ecosystems will lead to greater loss of biological wealth over time, as without pollinators many plants will not grow or bloom.
Federal wildlife officials on Tuesday moved to add the monarch butterfly to its endangered species roster, citing decades of steep population decline of the striking black-and-orange insect.
A monarch butterfly (Danaus plexippus) feeding on butterfly weed (Asclepias tuberosa).Monarch populations have been declining in abundance due to loss of habitat in the United States and deforestation at overwintering grounds in Mexico.