Ecosystems

  1. Ecosystems

    New protection for much-dogged shark

    To rebuild northeastern U.S. populations of the spiny dogfish, the first fishing quotas on this species limit the harvest to roughly 10 percent of the 1998 haul.

    By
  2. Ecosystems

    State of U.S. Agro-ecosystems

    By
  3. Ecosystems

    No Way to Make Soup—Thirty-two tons of contraband shark fins seized on the high seas

    By
  4. Ecosystems

    Plants hitch rides with box turtles

    In the pine rocklands of southern Florida, at least nine plant species find new homes by traveling through a turtle's gut.

    By
  5. Ecosystems

    Tougher Weeds? Borrowed gene helps wild sunflower

    Feeding concerns about developing superweeds, a test of sunflowers shows for the first time that a biologically engineered gene moving from a crop can give an advantage to wild relatives under naturalistic conditions.

    By
  6. Ecosystems

    Males live longer with all-year mating

    Male butterflies live longer in Madeira, where females are available year-round, than in Sweden, where females mature in one burst.

    By
  7. Ecosystems

    Pfiesteria’s Bite: Microbe may kill fish by skinning, not poisoning

    At least one kind of Pfiesteria—accused of killing fish and threatening human health—does not produce a toxin but kills by eating holes in fish's skin, some researchers say.

    By
  8. Ecosystems

    Making Scents of Flowers

    Science gets the tools to start sniffing around the ecology of floral scent.

    By
  9. Ecosystems

    The Buzz over Coffee

    By
  10. Ecosystems

    Plight of the Iguanas: Hidden die-off followed Galápagos spill

    Residues of oil spilled in the Galapágos Islands in January 2001 may have caused a 60 percent decline in one island's colony of marine iguanas.

    By
  11. Ecosystems

    Famine reveals incredible shrinking iguanas

    Marine iguanas in the Galápagos Islands are the first vertebrates known to reduce their size during a food shortage and then regrow to their original body lengths.

    By
  12. Ecosystems

    Deprived of Darkness

    From anecdotal reports of little-studied phenomena, researchers suspect that artificial night lighting disrupts the physiology and behavior of nocturnal animals.

    By