Selected "In the News" items previously
featured on NISIC for
this month. See the In the News
Archives to view previously posted items by year and
See our What's
New section for current items of interest.
Provides First Evidence of Coevolution Between Invasive, Native
Species (Jun 28, 2012)
University of Georgia. UGA Today.
A new University of Georgia study shows that some native clearweed plants have
evolved resistance to invasive garlic mustard plants -- and that the invasive
plants appear to be waging a counterattack. The study, published in the early
edition of the journal Proceedings of the National Academy of Sciences, is thought
to provide the first evidence of coevolution between native and invasive plant
species. See article Coevolution
between invasive and native plants driven by chemical competition and soil biotafor
the Antarctic to Protect Native Species, Propose Experts (Jun
An international team of scientists have published the first continent-wide assessment
of the Antarctic's biogeography, and propose that the landmass should be divided
into 15 distinct conservation regions to protect the continent from invasive
alien species. Invasive species are identified as one of the biggest threats
to Antarctic terrestrial ecosystems, particularly in a warming climate.
Planet in Peril: Is Earth Approaching a Tipping Point? (Jun
Scientists from around the world looked at past research on ecological change,
and found that the planet may be approaching a "critical transition," otherwise
known as a "tipping point," as a result of human activity like agriculture
and urbanization. There are signs that climate change, habitat loss and population
growth is dramatically reshaping life on Earth, an international team of researchers
recently reported in the journal Nature. See the related article Biodiversity
loss and its impact on humanity (Jun 6, 2012).
New Tool for Studying Insect-Plant Warfare (Jun 7,
When an insect pierces the surface of a plant to feed, much of the action takes
place in the plant's interior. A device called the Electrical Penetration Graph
(EPG) is a critical tool for peering into the process. Now a new type of EPG
developed by USDA entomologists
is giving scientists the clearest view yet of the wars waged between piercing-sucking
insects and the plants they attack.
Dock from Japan Carries Potential Invasive Species (Jun
Oregon State University.
When debris from the Mar 2011 earthquake and tsunami in Japan began making its
way toward the West Coast of the U.S.,
there were fears of possible radiation and chemical contamination as well as
costly cleanup. But a nearly 70' floating dock that unexpectedly washed ashore
in Newport, Oregon has been traced back to the Japanese disaster has brought
with it a completely different threat -- invasive species. Scientists at Oregon
State University's Hatfield Marine Science Center said the cement float contains
about 13 pounds of organisms per square foot.
Week 2012 -- Jun 18-24, 2012
Five years ago the U.S. Senate's
unanimous approval and designation of the final week
in June as "National Pollinator Week" marked
a necessary step toward addressing the urgent issue
of declining pollinator populations. Pollinator Week
has now grown to be an international celebration
of the valuable ecosystem services provided by bees,
birds, butterflies, bats and beetles.
Fish and Wildlife Service.
Profile -- Burmese Python
USDA. NAL. National Invasive Species
Burmese pythons are native to Southeast Asia and were imported to the U.S. for
the pet trade. Wild populations became established in 2000 in Florida from animals
that escaped or were intentionally released. Burmese pythons prey on native species
and may also compete with threatened native species.
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