Temperatures that used to signal the onset of spring for plants and animals are now occurring earlier in most parts of the world.
by Jennifer Fitchett, Daily MaverickWhite butterflies filling Joburg skies earlier than usual due to climate crisis by Jennifer Fitchett, Daily Maverick December 1, 2022 Each year around mid-summer, somewhere between December and mid-January, the skies of South Africa’s Gauteng province, including the city of Johannesburg, fill with small white butterflies. Some land in people’s gardens, allowing a closer look at the thin brown markings on their wings.
This article first appeared on Daily Maverick and is republished here under a Creative Commons license.
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White butterflies are filling Johannesburg’s skies earlier than usual. Climate change is to blameThe temperatures that used to signal the onset of spring for plants and animals are now occurring earlier in most parts of the world.
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White butterflies are filling Johannesburg’s skies earlier than usual. Climate change is to blameWe don’t know for sure when the next group will come through Gauteng. But phenologists will be watching carefully, using data about timing and temperature to assess threats to the butterflies and the ecosystems they inhabit.
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