A new study has found that French wild violets produce smaller flowers and less nectar than they did 20 to 30 years ago as a result of their evolution. This is stated in a scientific article. New Phytologist.
According to researchers, flowers “reject” pollinators and become less attractive in proportion to the decline in the number of insects in the world.
The study found that wild violet flowers growing near Paris are 10% smaller in size and produce 20% less nectar than they did 20 to 30 years ago. They are also less likely to be visited by insects.
“Our study shows that pansies have evolved to abandon their pollinators,” said study co-author Pierre-Olivier Cheptou, a researcher at the French National Center for Scientific Research. “They are evolving towards self-fertilization, where each plant reproduces itself, which works in the short term, but may well limit their ability to adapt to future environmental changes,” the researcher emphasized.
Previous scientists saidIt shows that insect populations are rapidly declining across the planet. Scientists have noted a sharp decline in overall insect numbers in many parts of the world. In the new study, biologists examined population trends in terrestrial insects, including beetles, moths and grasshoppers. They used data from 106 studies that followed the insects for nine to 64 years.
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