Nature - Silence of the Bees

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Watch the full episode of PBS Nature's Silence of the Bees, which looks at a recent phenomenon dubbed Colony Collapse Disorder (CCD). In the winter of 2006, a strange phenomenon fell upon honeybee hives across the country. Without a trace, millions of bees vanished from their hives, leaving billions of dollars of crops at risk and potentially threatening our food supply. The epidemic set researchers scrambling to discover why honeybees were dying in record numbers — and to stop the epidemic in its tracks before it spread further.

'Colony Collapse Disorder' Threatens Bees, US Agriculture

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Bees are critical to ensuring our food supply, yet they are disappearing at an alarming rate. Over thirty percent of our agricultural crops depend on bees for pollination, and bee pollination means about $15 billion in agricultural production for the United States. But the number of bee colonies has fallen by 45 percent in the last 60 years. In 2006, US beekeepers noticed something they've never seen before -- massive bee die offs. Every year since 2006, one third of bee colonies in the United States disappear. This mysterious bee die off came to be called colony collapse disorder. Colorado beekeeper Tom Theobald explains explains what's behind bee disappearance and what we need to do about it.

Biosfera 332 Morcegos em perigo

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O misticismo a que os morcegos estão votados não tem ajudado no estudo e conservação destes animais. Muitos desconhecem a sua importância no controlo de pragas e insectos, por exemplo. No Ano do Morcego, o Biosfera foi perceber como vivem estes mamíferos em Portugal. Descobrimo-los na Quinta da Regaleira e nas galerias subterrâneas do Museu Nacional do Traje.

Fonte: Farol de Ideias