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News & Updates

Overwintering Population Increases by 144% in 2018-2019 season

Monarch population increases in 2018-2019 season.

January 30, 2019

Experts from the WWF Mexico-Telmex-Telcel partnership in collaboration with the Natural Protected Areas Commission (CONANP) and the Monarch Butterfly Biosphere Reserve (MBBR), have published a press release reporting a 114% increase of the surface covered by monarch butterfly colonies in the 2018-2019 overwintering period. They reported a total area of 6.05 hectares (14.95 acres) occupied by 14 butterfly colonies which compared to the 2.48 hectares (6.13 acres) reported last year is much higher. The graph above shows the population counts since 1994.

This is certainly encouraging news but it doesn’t mean our work is over. Insect populations fluctuate and monarch populations have been on a downward trend so we can’t let down our guard. MBF will continue working towards the conservation of the monarch butterfly’s migratory phenomenon and the protection of their breeding and overwintering habitats.

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