From 2003 to 2019, amateur butterfly enthusiast Harlan Radcliff spent his lunch breaks observing butterflies on the grounds ...
Monarch butterflies are unique in their migration patterns. Eastern monarchs travel between Mexico and the U.S., spending ...
The study was one of several that assessed the effects of climate change on three species of butterflies whose populations are declining.
The study was one of several that assessed the effects of climate change on three species of butterflies whose populations ...
A 2,000-mile migration was ... than in the 1980s, and California wintering populations are 95% smaller than they were at that time. In response to these figures, the USFWS issued a December 2024 ...
A butterfly sits on a leaf at Monarch Grove Sanctuary in Pacific Grove ... Monarchs west of the Rocky Mountains typically overwinter along the California coast.
Just over 9,000 monarchs were counted in California last winter, the second lowest ever since the annual count began in 1997 ...
Pismo Beach’s butterfly count matches migration data from the ... Though the number of monarch butterflies migrating through California has fluctuated over the past decade, one trend is clear ...
The number of monarch butterflies spending winter in the western U.S. dropped dramatically this year, despite moves to extend ...
A winter count of visiting monarch butterflies found a steep drop from previous years, which has scientists worried about the ...