News / Science & Technology

    Native Bees May Help Save Crops

    Native Bees May Help Save Cropsi
    X
    Deborah Block
    August 22, 2014 12:23 AM
    U.S. President Barack Obama has called for a federal strategy to promote the health of bees that have been declining. The honeybee has been waning due to parasites, disease and pesticides. Wild bees may be used to take over their role as crop pollinators. Scientists first need to learn a lot more about wild bees, says biologist Sam Droege, who is pioneering the first national inventory on native bees. VOA’s Deborah Block went to his research laboratory in Beltsville, Maryland, to bring you more.
    Deborah Block

    In June, U.S. President Barack Obama called for a federal strategy to promote the health of bees and other pollinators that have been declining. The honeybee has been waning due to parasites, disease, pesticides and farming.

    Wild bees may be used to take over their role as crop pollinators. Before that can happen, though, scientists first need to learn a lot more about wild bees, said biologist Sam Droege, who is pioneering the first national inventory on native bees.

    To most of us, a bee is just a bee, but not to Droege.

     “They’re beautiful to look at under a microscope,” he said at his research laboratory in Beltsville, Maryland, between Washington and Baltimore.

    Pioneering research

    Four years ago, Droege began his pilot project surveying native bees for the U.S. government’s Geological Survey. He sorts them in pizza boxes, which he uses for storage. He says scientists know a lot about honeybees -- which produce honey and pollinate a third of U.S. crops - but very little about wild bees, which pollinate 75 percent of wild plants.

    “They don’t produce honey. They don’t have a barbed sting. They’re not aggressive. Some like sandy soils, some like thick grass; some are only nesting in woods,” said Droege.

    If the honeybee population continues to decline, Droege said wild bees have a better chance of survival because they are solitary.

    “One of the reasons they’re more robust than honeybees is that they nest individually. One female makes one nest at a time. At the end of the year, the female dies and the whole system restarts so you don’t accumulate as many diseases,” he said.

    Building inventory

    Droege said his survey is only the first step in a long process to learn about wild bees. He said once scientists have an inventory, they can study their habits and use them to pollinate crops. He estimates there are 4,000 types of native bees in North America - 400 yet to be named.

    “They haven’t been scientifically described. We might know that they’re different or they’re a new kind of species,” he said.

    Most of Droege’s inventory comes from 20 U.S. forest sites across the country. He also travels to find bees, and doesn’t have to go far to discover some just outside the building housing his laboratory.

    “I have no idea what I’m going to find each time. In just this region alone, there’s over 400 different species,” said Droege.

    Gentle insects

    He said the insects - some as tiny as a grain of rice - are on the ground, but people don’t notice them.  

    “Most people have no idea that their lawns are nothing but grass interspersed with bee nests," said Droege.

    Since some bee species look remarkably similar, Droege examines each one through a microscope and documents them with high-resolution photos.

    “And the differences are real subtle, slightly different sizes and shapes, a little bit more color here than there, differences in the hair patterns,” he said.

    Droege says his survey will show whether some species of wild bees are declining or flourishing.  He says that so far, scientists don’t know the answer, but he thinks most are doing just fine.

     

     

     

    You May Like

    Video As Refugees Perish, Greek Graveyards Fill

    Before burial at overflowing cemeteries, unidentified dead being swapped for DNA, in case some day relatives come to learn their fate

    Russian Opposition Leader Sues Putin for Conflict of Interest

    Alexei Navalny tells VOA in exclusive interview why transfer of $2 billion from country’s wealth fund to company with ties to President Putin’s son-in-law triggered lawsuit

    Clinton, Sanders Fight for African American Votes

    Some African American lawmakers lining up to support Clinton in face of perceived surge by Sanders in race for Democratic nomination in presidential campaign

    This forum has been closed.
    Comment Sorting
    Comments
         
    by: Sandy Rowley from: Reno, Nv
    August 22, 2014 1:17 PM
    I have noticed that we do not have as many native pollinators in Reno. I have also seen dead bees of all kind, on side walks, around swimming pools and parks. There are some home owners that have lots of bees, while the rest have noticed a sharp decline in the amount of bees, dragonfly and other pollinating insects in their yards.

    I hope this research helps to save our wild pollinators and is not to gather data for pesticide and big ag companies looking to abuse these beautiful insects like they have done to our honey bee.
    In Response

    by: Sam Droege from: Beltsville
    August 22, 2014 3:54 PM
    Sandy, could be lots of reasons for declines in Reno...pest control chemicals can have impacts. Best strategy for native bees is to plant native plants...decreasing watering needs and maintaining native bee populations right in town.

    Featured Videos

    Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
    As Refugees Perish, Greek Graveyards Filli
    X
    Hamada Elsaram
    February 11, 2016 8:01 PM
    Aid workers on the Greek island of Lesbos say they are struggling to bury the increasing number of bodies of refugees that have been recovered or washed up ashore in recent months.  The graveyards are all full, they say, yet as tens of thousands of people clamor to get out of Syria, it is clear refugees will still be coming in record numbers. For VOA, Hamada Elrasam reports from Lesbos, Greece.
    Video

    Video As Refugees Perish, Greek Graveyards Fill

    Aid workers on the Greek island of Lesbos say they are struggling to bury the increasing number of bodies of refugees that have been recovered or washed up ashore in recent months.  The graveyards are all full, they say, yet as tens of thousands of people clamor to get out of Syria, it is clear refugees will still be coming in record numbers. For VOA, Hamada Elrasam reports from Lesbos, Greece.
    Video

    Video To Fight Zika, Scientists Target Mosquitoes

    Mosquitoes strike again. The Zika virus outbreak is just the latest headline-grabbing epidemic carried by these biting pests, but researchers are fighting back with new ways to control them. VOA's Steve Baragona takes a look.
    Video

    Video Mosul Refugees Talk About Life Under IS

    A top U.S. intelligence official told Congress this week that a planned Iraqi-led operation to re-take the city of Mosul from Islamic State militants is unlikely to take place this year. IS took over the city in June 2014, and for the past year and a half, Mosul residents have been held captive under its rule. VOA's Zana Omar talked to some families who managed to escape. Bronwyn Benito narrates his report.
    Video

    Video Scientists Make Progress Toward Better Diabetes Treatment, Cure

    Scientists at two of the top U.S. universities say they have made significant advances in their quest to find a more efficient treatment for diabetes and eventually a cure. According to the International Diabetes Federation, the disease affects more than 370 million people worldwide. VOA’s George Putic reports.
    Video

    Video NATO to Target Migrant Smugglers

    NATO has announced plans to send warships to the Aegean Sea to target migrant smugglers in the alliance's most direct intervention so far since a wave of people began trying to reach European shores.
    Video

    Video Russia's Catholics, Orthodox Hopeful on Historic Pope-Patriarch Meeting

    Russia's Catholic minority has welcomed an historic first meeting Friday in Cuba between the Pope and the Patriarch of Russia's dominant Orthodox Church. The Orthodox Church split with Rome in 1054 and analysts say politics, both church and state, have been driving the relationship in the centuries since. VOA's Daniel Schearf reports from Moscow.
    Video

    Video Used Books Get a New Life on the Streets of Lagos

    Used booksellers are importing books from abroad and selling them on the streets of Africa's largest city. What‘s popular with readers may surprise you. Chris Stein reports from Lagos.
    Video

    Video After NH Primaries All Eyes on South Carolina

    After Tuesday's primary in New Hampshire, US presidential candidates swiftly turned to the next election coming up in South Carolina. The so-called “first-in-the-South” poll may help further narrow down the field of candidates. Zlatica Hoke reports.
    Video

    Video US Co-ed Selective Service Plan Stirs Controversy

    Young women may soon be required to register with the U.S. Selective Service System, the U.S. government agency charged with implementing a draft in a national emergency. Top Army and Marine Corps commanders told the Senate Armed Services Committee recently that women should register, and a bill has been introduced in Congress requiring eligible women to sign up for the military draft. The issue is stirring some controversy, as VOA’s Bernard Shusman reports from New York.
    Video

    Video Lessons Learned From Ebola Might Help Fight Zika

    Now that the Ebola epidemic has ended in West Africa, Zika has the world's focus. And, as Carol Pearson reports, health experts and governments are applying some of the lessons learned during the Ebola crisis in Africa to fight the Zika virus in Latin America and the Caribbean.
    Video

    Video Smartphone Helps Grow Vegetables

    One day, you may be using your smartphone to grow your vegetables. A Taipei-based company has developed a farm cube — a small, enclosed ecosystem designed to grow plants indoors. The environment inside is automatically adjusted by the cube, but it can also be controlled through an app. VOA's Deborah Block has more on the gardening system.
    Video

    Video Illinois Voters Have Mixed Emotions on Obama’s Return to Springfield

    On the ninth anniversary of the launch of his quest for national office, President Barack Obama returned to Springfield, Illinois, to speak to the Illinois General Assembly, where he once served as state senator. His visit was met with mixed emotions by those with a front-row seat on his journey to the White House. VOA's Kane Farabaugh reports.
    Video

    Video Exhibit Turns da Vinci’s Drawings Into Real Objects

    In addition to being a successful artist, Renaissance genius Leonardo da Vinci designed many practical machines, some of which are still in use today, although in different forms. But a number of his projects were never realized — until today. VOA’s George Putic reports.
    Video

    Video Heated Immigration Debate Limits Britain’s Refugee Response

    Compared to many other European states, Britain has agreed to accept a relatively small number of Syrian refugees. Just over a thousand have arrived so far -- and some are being resettled in remote corners of the country. Henry Ridgwell reports on why Britain’s response has lagged behind its neighbors.
    Video

    Video Russia's Car Sales Shrink Overall, But Luxury and Economy Models See Growth

    Car sales in Russia dropped by more than a third in 2015 because of the country's economic woes. But, at the extreme ends of the car market, luxury vehicles and some economy brands are actually experiencing growth. VOA's Daniel Schearf reports from Moscow.