Over the past several years honeybee colonies have declined dramatically. There is no consensus over a single cause, and in fact, scientists point to multiple causes for this problem. An important, yet often overlooked, factor is basic land use decisions. This public radio story explores the importance of the symbiotic relationship between honeybees, flowers and humans, and what kids can do to help promote honeybees and other pollinators.
Environment Life Science Earth and Space Science Reproduction Ecosystems
Story Length: 3:28
© 2013 National Public Radio, Inc. Used with the permission of NPR. All rights reserved.
AIR DATE: 05/07/2013
Flowers have many ways of attracting bees for the purpose of pollination. Bees are looking for nectar and pollen when they visit plants and flowers, as well as various colors, patterns and shapes. Recently scientists have discovered a new way that flowers attract bees. They can sense the electric fields around flowers. Listen to hear about the natural positive charges of bees, the negative charges of flowers, and how the electric attraction works for pollination to happen.
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Copying the way a desert beetle gets water, scientists have designed a membrane that can extract water from the air. Since all air contains water, even in the desert, this could provide a very inexpensive way to supply drinking water. This audio story describes an application of the idea of “biomimicry,” or using ideas from nature to solve technological problems. Listen to learn how this idea can help solve the problem of scarce drinking water.
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A United Nations report in 2014 shows that human activities are changing the planet. The scientists are more confident in their conclusions that humans are causing global warming. There are rising sea levels, higher temperatures and impacts on wildlife. This conversation with a public radio reporter looks at the long term trend in global temperatures and what humans can do to reverse the trend.
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Infectious diseases like plague don’t just impact humans, they can spread and decimate animal populations as well. One scientist saw the impact of plague in prairie dog colonies and among black footed ferrets. He questioned whether the scientific understanding of plague cycles and transmission was accurate. Listen to learn what scientists discovered about plague and its larger impact on ecosystems.
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