The number of monarch butterflies spending winter in the western U.S. dropped dramatically this year, despite moves to extend ...

The number of monarch butterflies spending the winter in the western United States dropped dramatically this year even as ...

The number of monarch butterflies in California is in sharp decline this year. This is the second-lowest population recording ...

The Western population of the monarch butterfly has declined to a near-record low with fewer than 10,000 found living in ...

Recent research has focused on understanding the dynamics of these threats and exploring conservation strategies to support monarch populations across North America. One of the critical areas of ...

We know small populations are especially vulnerable to environmental fluctuations, and we think that’s what happened this ...

Once, millions of monarchs wintered in California. But climate change, habitat loss, widespread pesticide use and disease ...

In 2023, more than 16,000 butterflies were counted at one local grove. The most recent count was a tiny fraction of that.

On Thursday, invertebrate conservation group the Xerxes Society released the results of their 28th annual Western Monarch ...

A pilot program established in 2021 to help pollinators in Utah has enjoyed success and is helping residents, communities and ...

For the past three years, more than 200,000 western monarch butterflies spent their winters along the California coast — huddling together in tall tree groves, finding respite from the wind ...

The Western population of the monarch butterfly has reached the second-lowest level recorded since tracking began nearly ...