US butterfly training has fallen by 22% in two decades, says the study

According to the new study, the USA populations in the United States have decreased more than fifth in two decades.

According to Binghamtan University studies in New York, the number decreased by 22% between 2000 and 2020.

A third of the species saw a serious downturn, with some like skipper julia, losing more than 90% of its population.

However, researchers say butterflies can recover if urgent conservation measures are taken.

A study published in Magazine science The measured butterfly “wealth” is the number of individuals of the species in a particular area. He analyzed 12.6 million butterfly observations from 76,000 polls in 35 monitoring programs.

This included data from civic scientific programs, such as the fourth July of the North American butterfly Association.

Using statistical models, they evaluated the population trends for 342 species.

The results showed that 33% were in a significant decrease, with many extreme losses – 107 species decreased by more than 50%.

“While the results agreed with global tendencies, seeing the scale of the decrease in such a large spatial scale were sober,” said Professor Eliza Grams, Associate Professor of the Biological Sciences Department at the University of Binghamtan.

Some of the most affected species are Florida Belaya, Hermes -Med, Orange Tail, Satire Mitchela and West Virginia White, which decreased by more than 98%in the United States.

The West Coast lady, once the usual butterfly in the backyard, decreased by 80%, raising anxiety, as even this very adapted look fought.

“This is anxious because it suggests that even ordinary butterflies are not safe,” said Professor Grams.

According to the researchers, the loss of habitat, pesticides and climate change are the key causes of this decrease.

Butterflies are important pollinators that support plants and harvest. Experts say their decrease can disrupt food production and entire ecosystems.

They also serve as environmental health indicators – when the number of butterflies falls, it signals problems with other types.

Researchers say the species are most decreasing in the US in the southwest, one of the hottest and most most regions. They believe that the drought can be the main loss.

“The drought is a double threat – it harms the butterflies directly, and also affects their food and hosts,” said Professor Grammar.

The results can help lead to important efforts to protect, for example, the priorities of species for the International Union for Conservation of Nature (IUCN) of the red list of threatening species and protection against endangered species.

Despite the decline, there is hope for recovery.

“Butterflies can recover quickly because they have a short generation. Small actions such as planting field flowers, decreased use of pesticides or even leaving part of the rear yard, can significantly improve their chances,” said Professor Grammar.

She also emphasized the need for government action.

“Insects are important for life on Earth, and we need actions and politicians that support insects.”