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More than 1,500 bee dance moves decoded by scientists

More than 1,500 bee dance moves decoded by scientists

15.2.2020

More than 1,500 bee dance moves decoded by scientists

'The most interesting about bees is their communication,' said entomologist Morgan Carr-Markell.

'Bee Safe' Pesticide May Not Be Very Safe for Bees "So I wanted to be able to use that to help land managers who are interested in planting for bees, and give them on-the-ground information," she said. Honey bees provide valuable pollination services, however, colony mortality has grown to unsustainable levels in some countries, including the United States, according to the researchers. One of the main factors in this increasing mortality—alongside pesticides, pathogens and parasites—is the conversion of land from native prairie habitats to monocrop agriculture, which can reduce the amount of food available to bees. Some conservationists in the Upper Midwest have proposed restoring or reconstructing native prairie in a bid to improve the nutritional intake of bee colonies. "If the colonies are well nourished they're better able to deal with pesticides and pathogens—they're better able to deal with every other stressor," Carr-Markell said. Before the arrival of Europeans in the Americas, the Upper Midwest mainly consisted of prairie lands. However, less than two percent of this habitat remains today. Despite proposals to restore these habitats, there is still much that scientists don't known about the foraging strategies of bees, and therefore, how effective such initiatives would be. In order to provide new insights into the foraging strategies of honeybees, Carr-Markell and her team placed bee colonies in hives at two sites in Minnesota near two large, reconstructed prairies. These hives were made of glass so that the researchers could observe what was going on inside. The team wanted to find out what types of flowers the bees targeted when seeking out food—mainly pollen and nectar—and what time of year they most actively foraged. A honey bee visits a purple cornflower blossom in Santa Fe, New Mexico. Robert Alexander/Getty Images They observed waggle dances of female bees in the hives between 2015 and 2017. These performances involve the insects flying in a figure-of-eight formation. In the straight part of this figure-of-eight, the bees waggle their bodies in order to communicate the direction of a flower patch. The length of these waggles also contains information about how far away the flower patch is. Meanwhile, the number of repetitions of the dance—and speed with which it is carried out—seem to be related to the value of the food source in question. In total, the researchers decoded 1,528 waggle dances finding that most advertised flower patches outside of reconstructed prairies. However, the number of dances advertising nectar sources within prairies increased dramatically in the late summer and fall—toward the end of the foraging season—at one site. The researchers suggest this is because the bees were trying to stock up for the coming winter. In addition to these experiments, the team also collected pollen from some of the bees and analyzed it to shed light on which flowers were most highly valued by the insects. They found that the bees advertised seven different plant groups native to prairies as highly profitable pollen sources, such as goldenrods and prairie clovers. These findings could have implications for prairie restoration efforts, the scientists say. "Our results suggest that including certain native prairie [flowers] in reconstructed prairies may increase the chances that colonies will use those prairies as major food sources during the period of greatest colony growth and honey production," the authors wrote in the study. Read more: Newsweek

Count these moves

Not one S&P 500 CEO is donating to Bernie SandersWhile the moderate 2020 Democrats lost to Bernie Sanders in New Hampshire, presidential hopefuls Amy Klobuchar, Pete Buttigieg and Joe Biden are winning over the CEOs of S&P 500 companies, as the execs vote for them with their wallets. Good, corrupt wall street needs to be broken up . Because they are not stupid. They understand the damage that socialism would bring to this nation.... What does that tell you?

Kings' Harrison Barnes Says He Won’t Shave Beard or Cut Hair Until Team Hits .500 RecordThe Kings haven't had a season above a .500 winning percentage since the 2005-2006 season Good for him groominglounge will fly one of our barbers out to Sacramento and groom up Harrison Barnes (haircut, shave, products and more) once the SacramentoKings get past 500.

Wayfair to Cut About 500 Jobs in RestructuringWayfair said it was cutting about 3% of its workforce, roughly 500 jobs, as the online furniture retailer looks to reduce costs in its operations. amazon eating its lunch i guess protesting about where you sell your goods doesn't help sales Oh so they are done demolishing retail stores so will now start eating their own?

Trump to court ‘God-fearing, country-loving Americans’ at Daytona 500Trump will head to the NASCAR season opener, the latest sporting event he’ll attend to court voters for his reelection. I won’t play Sounds about right. Court voters or hold a campaign rally?

Despite Trump trade deal, many S&P 500 firms are still concerned about tariffs, economic slowdownAn analysis of corporate conference calls this earnings season shows that a significant share of companies are still concerned about tariffs and the chances of a global economic slowdown. There is no recession. There is only FedPump™ Just ask FED to print more Money. Problem solved.

Trump to attend NASCAR's Daytona 500President Trump is expected to attend the Daytona 500 on Sunday, which would make him the second sitting US president to do so. Then-President George W. Bush attended in 2004. Can’t wait for them to add battle mode on these BattleRoyale Fortnite In honor of this, I propose the drivers change directions and make only right turns for the race Yea, most of his base will be there. I wonder if someone will let him pretend drive a racecar as they did with the truck?



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