The monarch butterfly, long idolized for its epic migrations ... are reporting disturbingly low numbers at California’s coastal overwintering sites, where the western population of monarchs ...

Whether you’re a butterfly fanatic or simply interested in nature, the monarch butterfly is worth a study. Beautiful and ...

A recent study by the Worldwide Fund has revealed a promising increase in the population of the eastern monarch butterfly, ...

The results of the 28 th annual mid-season Western Monarch Count have been released: only 9,119 of the butterflies were counted during the time the overwintering population is usually at its peak.

"These planted stands could ultimately serve as overwintering sites for the Monarch butterfly under warmer climates," concluded Sáenz-Romero. Abies religiosa (Sacred fir) seedlings produced in a ...

Counts at overwintering sites on the California ... the International Union for the Conservation of Nature put migratory monarch butterflies on their so-called "Red List" as threatened.

Monarch butterflies migrate over generations ... Eastern monarch populations, which migrate between Canada and overwintering sites in Mexico, are estimated to have declined by more than ...

Monarch populations east of the Rockies ... that scientists still don’t fully understand. In the spring, overwintering butterflies mate and fly north, eventually stopping to lay eggs once ...

Monarch butterflies overwinter primarily in the oyamel fir forests of the Sierra Madre Mountains in central Mexico, which provide a microclimate essential for their survival during the winter months.

potentially disrupting the monarchs' traditional overwintering patterns. The eastern population of monarch butterflies overwinters primarily in the oyamel fir forests of the Sierra Madre Mountains ...