Due to climate change, dragonflies are losing color


A kind New research Research published in the Proceedings of the National Academy of Sciences shows that dragonflies are losing key characteristics because climate changeThe study has determined that global warming is causing male dragonflies to lose their color, a trait used to attract mates.

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The research was led and co-authored by Michael Moore, an evolutionary biologist at Washington University in St. Louis. In this study, the researchers analyzed more than 300 types of dragonflies from all over the United States, Canada And Mexico. They also cross-referenced the wing colors of approximately 2,700 dragonflies from different locations and climates. The study found that male dragonflies lost their wings color due to rising global temperatures.

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“Our research shows that with climate change, the males and females of these dragonflies will change in very different ways,” Moore said in an interview. “These changes may happen much faster than now Evolution Changes in these species have occurred before. “

A kind Different research A study completed in 2019 found that male dragonflies with darker wings thrive in colder environments.Darker pigmentation absorbs more calories and may increase their body temperature 2 degrees Celsius. In contrast, they tend to abandon color in order to adapt to higher temperatures.

“Evolutionary changes and wing colors are a very consistent way for dragonflies to adapt to them. climate,” Moore said. “This makes us wonder what role the evolutionary changes in the color of the wings might play when the dragonfly responds to rising global temperatures. “

Although this research has raised serious concerns about the future of dragonflies and mating, Researchers There is no explanation for the changes experienced by female dragonflies. According to Moore, female dragonflies usually do not show drastic changes to climate change, and when they appear, the situation is the opposite of that of male dragonflies. In other words, as the temperature increases, female dragonflies may become darker.

“We don’t yet know what drives these evolutionary changes in female wing color,” Moore said. “But one very important thing that shows is that we should not assume that males and females will react to climate conditions in exactly the same way.”

by CNN

Guide image via Pixabay



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