News tagged with food source

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Caffeine enhances bee memory

(Phys.org) —Caffeine is the naturally occurring drug most widely used by humans. In nature, though, it is reported to act as a bitter and toxic deterrent to herbivores, preventing leaves and seeds from ...

May 13, 2013
5 / 5 (2) 0 | with audio podcast

Is the humble fig more than just a fruit?

Figs and fig trees are familiar to a wide cross-section of human society, both as a common food and for their spiritual importance. What is less well understood is the global nature of this association between figs and humans, ...

May 02, 2013
3.2 / 5 (6) 0 | with audio podcast

Early warning signs of population collapse

Many factors—including climate change, overfishing or loss of food supply—can push a wild animal population to the brink of collapse. Ecologists have long sought ways to measure the risk of such a collapse, ...

Apr 10, 2013
3.8 / 5 (6) 0 | with audio podcast

Streams stressed by pharmaceutical pollution

Pharmaceuticals commonly found in the environment are disrupting streams, with unknown impacts on aquatic life and water quality. So reports a new Ecological Applications paper, which highlights the ecolog ...

Apr 01, 2013
4.2 / 5 (5) 2 | with audio podcast