Researchers investigate the role of flies in pollination
SOME MIGHT be surprised to learn that the number of fly pollinators is growing at a rapidly accelerated rate. They now estimate that more than 1,000 species of insect are now considered to contribute to pollination in Britain. That represents more than 50 per cent of all pollination efforts.
“We are seeing an increase of about 15 per cent every year,” says Peter Aiken, a scientist at the Natural History Museum. “It really is astonishing.”
For many years, the scientists were quick to blame for the growth of insects a lack of food supplies and habitat fragmentation. But that is no longer the case. “People are actually losing ground because of more widespread farming and the use of pesticides in general, where insects are treated with herbicides like neonicotinoids,” explains Robin Taylor from the School of Life Sciences at the University of Leicester.
Cyanotic insect pollination
While it may seem like such a trivial subject, cyanotic insects like honeybees can provide vital pollinating services. For instance, a survey by the University of Bristol found that they will lay their eggs on dead leaves if the leaves are protected from wind damage. B우리카지노y providing protection from wind erosion, the bees can then pollinate a wider number of flowers, including nectar and pollen.
In other cases, pollination by insects provides important benefits for birds like birds of prey or even some of Britain’s most threatened birds: the red-legged pygmy grebe, a small, secretive marsupial which lives on grasslands and creeks. The Grebes can even help pollinate their own eggs.
It turns out that flying insects can also help feed on honeybees and other beneficial insects. “The problem is, the most important pollinators are not usually found in the wild – they are usually in cities,” says Taylor.
However, there is good news. A number of countries now consider their cities to be the most pollinator-sensitive regions in the world. There are plans to create a European Union-wide system of national and local plans, based on the results of an expert review. The plans will help establish guidelines on the distribution of pollinators in cities throughout Europe.
To improve, it is thought that the numbers of pollinators in a city can be improved by incr더킹카지노easing agricultural use, but the ultimate goals of any country’s바카라사이트 urban plan are to encourage more human activity. “There may not be a problem in the wild or at any place wher