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invasive-spp worldwide - trends, possible fixes, bans; swarms + blooms

Discussion in 'Pet News' started by leashedForLife, Jun 13, 2010.


  1. leashedForLife

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    invasive fish and water-woes - USA
    Can Asian carp inspire long-term solutions to Chicago's most pressing water problems?


    SWEDEN -
    invasive comb-jellies may be reduced by new parasite -
    New parasite could be late summer beach pest
    unfortunately, the parasite is a larval-anemone,
    possibly native to the Western-Atlantic, where it causes a nasty bathers-rash on beach-swimmers -
    a related anemone is *native* to Swedish seas, so we will all hope it is the native-spp attacking the invader.
    it has not yet been definitively-identified.
     
  2. leashedForLife

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    Fire may be key to reviving dogwood trees in Eastern forests

    a ten-year cycle of prescribed burns may save the Eastern Dogwood, a species crucial for many other spp -
    especially for overwintering birds from New-England to the southern Appalachians.
    it has been reliably estimated that ALL wild native-dogwood in Penna will be affected or dead by 2020-CE.
    http://www.ouachitamaps.com/picture_library/OHT/OHT Pic IMG_4318 Dogwood.jpg


    http://tinyurl.com/2cjj3tg


    http://sparkleberrysprings.com/v-web/b2/images/c/corcorflo091009e.jpg



    an Eastern Bluebird (migratory insectivore) feeding on Grey Dogwood fruit -
    Aerial View: Proper habitats in Northeast Ohio essential to migrant birds | cleveland.com
    this is a tropicene species making a wobbly recovery post-DDT in the USA, but still at risk in S-Am where DDT is still used.
     
  3. leashedForLife

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    Jellyfish joyride a threat to the oceans

    there is evidence that open-ocean areas can FLIP from being fish-populated to being jelly-populated, as off Namibia -
    where intensive exploitive fishing of sardines caused a popn-crash of cold-water sardines, and a popn-spike of jellies,
    taking over their niche as predators.


    http://www.bclme.org/factfig/images/fig2.jpg

    Ugu South Coast Tourism, addresses Sardine Run launch | Travelwires.com

    _________________________________________


    Passive Predators - The Jellyfish Invasions
     
  4. leashedForLife

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    this is a MONOCULTURE species which grows thickly + rapidly excludes native flora; producing dead-zones,
    as fauna then have nothing to eat.

    Invasive tallowtree spreading rapidly across Gulf coast
     
  5. leashedForLife

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  6. leashedForLife

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    Targeting the Tiniest - Green Blog - NYTimes.com

    the *migratory grasshopper AKA locust of the Great-Plains is on the march again...
    a new + hopefully less-toxic tactic is being used, aimed at baby-hoppers.



    interesting NOTE -
    grasshoppers change into locusts purely as a result of density per area - once it reaches critical-mass,
    and they are being jostled by their too-near neighbors, a remarkable metamorphosis begins:
    they get BIGGER with longer wings, their metabolism alters, COLORS change, legs lengthen, etc.

    Locust plagues


    When Grasshoppers Go Biblical: Serotonin Causes Locusts to Swarm: Scientific American
     
  7. leashedForLife

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    the Indian-mynah is the current target of culling in Aus -
    Indian mynah bird next to face Australian cull | Environment | guardian.co.uk

    its very strange, Oz-residents all seem to identify with the bush, so koalas are 'good' -
    yet roos + dingoes, just as globally-unique and indigenous, are often culled with a vengeance.

    PARROTS are frequently culled - all native-species; there were bounties very recently on some psittacines,
    and i would not be surprised to find that there still are parrot-bounties.
    yet the Aussie-govt will not allow [legal, tracked, documented] exportation of problematic parrots -
    they'd rather kill them? :crazy: my head is spinning.

    mind U, i am not saying that KEEPING invasive-species is a good idea! not at all -
    only that Aussies seem to have a schizophrenic + contentious relationship, even with iconic Oz-critters.
    rather like me insisting that every prairie-dog die, immediately, and that only those who are captive-reared + chipped within 7-days of birth are legal, so all the wild-stock are to be killed.
    prairie-dogs serve an important function in grasslands + feed may other species;
    they also provide housing to other species [their abandoned or even shared burrows].
    the burrowing-owl, gopher tortoise, and gopher snake are all fellow residents of prairie-dog towns.

    my feeling is that eliminating an invasive-species should be done ASAP when it first escapes into the wild,
    not ** wait ** and let the popn grow. if it arrives from abroad, freeze the assets carrying the alien in place;
    the tractor-trailer, train-car, air-shipped cargo, the returning tourist, or whom or whatever.
    they go nowhere till the car, any trailer, occupants pantslegs, luggage and other areas are searched for hitchhikers.
    [dogs trained to locate the invader are Much! faster than humans.]

    burrs, sticktights, spores, egg-masses, and other packaging may help transport or protect invaders;
    washing hands, changing shoes or clothing, checking under the car or draining the bilge INTO the lake
    that it came from, are all good means of avoiding transporting invaders.

    CATS are the worlds most-successful invasive mammal-species; until a few years ago,
    feral-cats lived on all 7 continents; then they were banned from Antarctica and are now on 6 of the 7.

    more tolerance + preservation for native-species, and PROMPT removal of new-arrival invaders,
    is my personal preference. :thumbsup:

    --- terry
     
  8. leashedForLife

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    the Indian-mynah is the current target of culling in Aus -
    Indian mynah bird next to face Australian cull | Environment | guardian.co.uk

    its very strange, Oz-residents all seem to identify with the bush, so koalas are 'good' -
    yet roos + dingoes, just as globally-unique and indigenous, are often culled with a vengeance.

    PARROTS are frequently culled - all native-species; there were bounties very recently on some psittacines,
    and i would not be surprised to find that there still are parrot-bounties.
    yet the Aussie-govt will not allow [legal, tracked, documented] exportation of problematic parrots -
    they'd rather kill them? :crazy: my head is spinning.

    mind U, i am not saying that KEEPING invasive-species is a good idea! not at all -
    only that Aussies seem to have a schizophrenic + contentious relationship, even with iconic Oz-critters.
    rather like me insisting that every prairie-dog die, immediately, and that only those who are captive-reared + chipped within 7-days of birth are legal, so all the wild-stock are to be killed.
    prairie-dogs serve an important function in grasslands + feed may other species;
    they also provide housing to other species [their abandoned or even shared burrows].
    the burrowing-owl, gopher tortoise, and gopher snake are all fellow residents of prairie-dog towns.

    my feeling is that eliminating an invasive-species should be done ASAP when it first escapes into the wild,
    not ** wait ** and let the popn grow. if it arrives from abroad, freeze the assets carrying the alien in place;
    the tractor-trailer, train-car, air-shipped cargo, the returning tourist, or whom or whatever.
    they go nowhere till the car, any trailer, occupants pantslegs, luggage and other areas are searched for hitchhikers.
    [dogs trained to locate the invader are Much! faster than humans, when searching. ;)]

    burrs, sticktights, spores, egg-masses, and other packaging may help transport or protect invaders;
    washing hands, changing shoes or clothing, checking under the car or draining the bilge INTO the lake
    that it came from, are all good means of avoiding transporting invaders.

    CATS are the worlds most-successful invasive mammal-species; until a few years ago,
    feral-cats lived on all 7 continents; then they were banned from Antarctica and are now on 6 of the 7.

    more tolerance + preservation for native-species, and PROMPT removal of new-arrival invaders,
    is my personal preference. :thumbsup:

    --- terry
     
  9. leashedForLife

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  10. leashedForLife

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    Girl, 10, Dies After Swimming in Amoeba-Infested Water in S.C. - Infectious Disease - FOXNews.com

    opinion alert -
    one medico stated that prevention short of avoiding freshwater is impossible -
    can U say * nose-clips *? putting them on BEFORE entering the water + taking them off only after exiting,
    should prevent most exposures.

    an automatic snorkel-system with goggles that cover the nose, should also help prevent such needless [tho rare] deaths.
    JMO + IME, Ur mileage may vary :)
    - terry
     
  11. leashedForLife

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