Tag: Monarch butterflies

Monarch butterflies make an astonishing migration from throughout the United States and Canada to winter in the mountains of Central Mexico. But while Mexico may be the final destination, it’s...

A butterfly nonprofit is paying to ship 12 monarch butterflies from Wisconsin to Texas, where they hope the insects will migrate to Mexico. Friends of Butterfly Gardens Inc. is funding...

Light pollution can affect monarch butterflies’ circadian clocks, possibly making it more difficult for them to rest at night and fly at the right time during their long migrations. Plenty...

After a record low last winter, initial counts of western monarch butterflies in California this winter show the population is rebounding. Last winter, the Xerces Society for Invertebrate Conservation recorded...

Monarch butterflies are planning to spend their winters on the coast of California in greater numbers this year, according to surveys. More than 1,300 monarchs (Danaus plexippus) were reported at...

The western monarch butterfly population has been decreasing on its usual breeding grounds throughout the West. Last winter, overwintering numbers were the lowest ever recorded. But that may not mean...

Monarch butterflies and bee species use ornamental milkweed plants — the kind sold at garden centers — just as much as they use native plants, researchers found. “There’s a ‘native-plant’...

Milkweed plants critical for the life cycle of monarch butterflies are loaded with pesticides in Northern California, according to recent research. Past studies have pointed to pesticides as a major...

Monarch butterfly populations wintering in Mexico have declined 53% since last season, according to recent surveys. Biologists use the acreage of forest they occupy to estimate population changes. The latest...

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