News tagged with food chains

Engineered bacteria mop up mercury spills

Thousands of tonnes of toxic mercury are released into the environment every year. Much of this collects in sediment where it is converted into toxic methyl mercury, and enters the food chain ending up in the fish we eat. ...

Aug 12, 2011
5 / 5 (1) 0

Harvesting of small fish species should be cut: study

(PhysOrg.com) -- New research on the fishing of small fish species near the bottom of their food chains suggests harvesting at levels previously thought to be sustainable could have devastating effects on ...

Jul 22, 2011 report
4.8 / 5 (8) 5 | with audio podcast

Parasites help reveal new ecological rules

Scientists at UC Santa Barbara and other institutions say their new research is expected to profoundly affect the field of ecology and can assist the management of ecosystems, including forests, lakes, and ...

Jul 21, 2011
4.3 / 5 (4) 3 | with audio podcast

Natural-born consumers

What do fast-food restaurants have in common? Why are women more likely to become compulsive shoppers and men more likely to become addicted to pornography? Why do men's testosterone levels rise when they ...

Jun 29, 2011
3.3 / 5 (3) 1

Va-based food distributor using DNA to track beef

First came organic, then free-range, then local. Now discerning diners with a penchant for spending a premium to know where food comes from are pushing DNA-traceable meat onto restaurant menus.

May 25, 2011
5 / 5 (1) 2

Mediterranean Sea invaded by alien species

More than 900 new alien species have been encountered in the coastal environments of the eastern Mediterranean Sea in recent decades, including the poisonous pufferfish. The invasion of alien species has had ...

May 23, 2011
4.5 / 5 (2) 0