The results of ecologists tracking two hundred species of insects in Europe showed that their numbers have increased by 30% in the last four decades.
The press office of the Technical University of Munich states that follow-up results show that the number of domestic and wild bees, butterflies and other insects is declining. For example, wild bee populations have dropped by a third in the past six years, and native bee populations in North America alone have dropped by half.
The researchers analyzed data collected by entomologists in Bavaria since the early 1980s and found that climate change is affecting the numbers and habitats of insects in Europe. This study included 200 species of insects, most of which belong to three families of invertebrates-butterflies, grasshoppers and dragonflies.
It was found that 30 percent of these insects increased in number and habitat due to climate change, 37 percent decreased, and the remaining 33 percent were not affected by temperature changes or did not adapt to them. The most affected insects were butterflies and grasshoppers, whose number dropped by 41 percent while dragonflies rose by 52 percent, and scientists explained this because of the love these insects have for temperate climates. .
The university’s media office said in a statement, “The number of many heat-loving insects, such as dragonflies, cockroaches in the meadow and blue (copper) butterflies, has increased with rising temperatures. . The biggest increase was in dragonflies, which spread to Turkey. The Mediterranean region, since the late nineties of last century. It can also be seen in Bavaria. ”
According to the researchers, the decrease in the number of other insects is not related to climate change, but to changes in human use of nature. Therefore, this issue should be considered when evaluating the impact of climate change on various ecosystems of the Earth.
source: tass
Source: Arabic RT
