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  1. #1
    Join Date
    Dec 2005
    Location
    around Seattle, WA
    Posts
    3,238
    Sundial - nope, haven't seen an Ivorybill. Most of the time I'm in a motorized boat, so birds fly off. There hasn't been much talk among the Cajuns about the bird either, although the Atchafalaya Swamp (a CHAF a LIE a - all short "a's") is one spot they're thought to be.

    Smilingcat - Why did the trees die, or rather why the saltwater intrusion so far inland... The reason are, in no particular order:
    The Mississippi River no longer runs free and unleveed - thus less sediment is caught in the coastal litoral flow, and then washed inland by tides and storm surges.
    Oil was discovered, and many many canals were dug to get equipment to it. The worst are perpendicular to the Gulf, thus allowing straight lines for the salt water to get far inland.
    Natural bayous were straightened for shipping
    Earthquakes - yes we have them, but more like a crack in pudding. The goo that passes for soil sinks to a new lower level.
    The natural sheet flow hydrology is totally screwed up by various sizes of canals and spoil bank ridges, thus when a storm surge does occur, it can't drain quickly out.
    And once fresh plants are killed by saltwater being on them for too long, they die, and the fragile peaty soils start breaking down. Salt tolerant plants don't grow as fast as fresh plants.

    And the important question - why should folks care? Do you like shrimpies??? The larval shrimp and many other fisheries species are dependant on inland marshes as nursery habitat. Oil & gas - 1/4 (i think) of what this nation uses comes out of or through Louisiana. There's more, but I'll stop.
    Beth

  2. #2
    Join Date
    Apr 2006
    Posts
    3,867
    If you have an IMAX theater nearby, see if it is showing the movie "Hurricane on the Bayou". It's about the effects of Katrina and the way canals and levees have affected the Louisiana coast.

    Karen

 

 

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