Search results
Results From The WOW.Com Content Network
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 ...
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 ...
A monarch butterfly feeding on milkweed. (Shutterstock) The U.S. Fish and Wildlife Service is pushing for added protections for the monarch butterfly after seeing a population decline of about 80%.
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 ...
Pollinator decline is the reduction in abundance of insect and other animal pollinators in many ecosystems worldwide that began being recorded at the end of the 20th century. Multiple lines of evidence exist for the reduction of wild pollinator populations at the regional level, especially within Europe and North America.
The decline was "apparent regardless of habitat type" and could not be explained by "changes in weather, land use, and habitat characteristics". The authors suggested that not only butterflies, moths and wild bees appear to be in decline, as previous studies indicated, but "the flying insect community as a whole". [1] [4] [52] [53] [54]
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.
The monarch butterfly or simply monarch (Danaus plexippus) is a milkweed butterfly (subfamily Danainae) in the family Nymphalidae. [6] Other common names, depending on region, include milkweed , common tiger , wanderer , and black-veined brown . [ 7 ]