California Monarch Butterfly Population In Sharp Decline
Hundreds of volunteers and partners participated in the 28th annual Western Monarch Count by attempting to identify all of the overwintering monarch butterflies in California. The results coincide with monarch butterflies being proposed for protection under the U.
Monarch butterflies face steep decline in the Western U.S.
Monarch butterflies in the western U.S. have dropped to just 9,119 this year. In 2023, the count was 233,394, meaning a 96% decline.
The Western Monarch Butterfly Population Has Plummeted This Winter
The number of monarch butterflies in California is in sharp decline this year. This is the second-lowest population recording since tracking began in 1997. Biologists say record-high late summer temperatures and drought in the West likely contributed to the dropoff.
Monarch butterfly population in Western U.S. nears record 30-year low. Here's what to know.
The number of monarch butterflies spending winter in the western U.S. dropped dramatically this year, despite moves to extend protections for the insect.
Dramatic drop in monarch butterfly count nears record 30-year low
This year the organization counted 9,119 monarchs, the second-lowest total since tracking began in 1997. The organization has recorded more than 200,000 monarchs in each of the last three years.
Monarch butterfly numbers hit near record low in California. Here's why that matters
Just over 9,000 monarchs were counted in California last winter, the second lowest ever since the annual count began in 1997
Where have the butterflies gone? Monarch count nears 30-year low
The number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in nearly three decades as pesticides, diminishing habitat and climate change take their toll on the beloved pollinator.
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UW-Led Study Traces Indigenous Population Shifts in North America Before Europeans
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Polar bear population decline the direct result of extended 'energy deficit' due to lack of food
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Polar bears are suffering from an "energy deficit" that is devastating their populations
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DC’s population tops 700,000, with pandemic losses likely fully reversed this year
The District’s population continued a three-year recovery in 2024, and topped 700,000 for the first time since 2019.