New Technologies Aid The Effort
technologies are always appearing in the fight against invasives. In
the past month a couple of new technologies, or uses for existing
technologies, have caught my attention.
In a very inventive use of an existing
technology, researchers in France are using Google Street View to
successfully map the presence of an invasive insect.
The pine processionary moth Thaumetopoea
is a serious pest that damages Austrian pine
trees which are used extensively in managed areas.
In autumn, moth larvae build a highly visible nest made
from white, shiny silk. The researchers
"drove" around a large area with Google Street View to map districts
that had been invaded by the moth and found that they were 90% as
accurate as human observations made by driving all of the same streets.
French biologists use Google Street View to
map invasive species
One area of research that is
rapidly expanding is the use of environmental DNA to establish the
presence of a host of species. Very simply, this technique works by
searching a sample of water for DNA that is shed by the target
organism. This technique is still in its infancy but offers great
promise for monitoring aquatic invasives. In a new twist, researchers
have developed a process through which they can identify the presence
of fish by searching for the DNA of the microbial communities present
in the digestive tracts of the target species. Researchers
have found that each species has unique gut microbia that is shed into
the water during defecation. Read More
Are On The Move In Canada
an outside observer, it seems to me that our Canadian friends have
really ramped up their invasive species efforts in the past couple of
years. Unfortunately, they need to be prepared to
deal with the discovery of zebra mussels in Manitoba's Lake Winnipeg.
Lake Winnipeg is huge, in fact, it is
the eleventh-largest freshwater lake on Earth! It is the
furthest west of any zebra mussel waters in Canada and poses a
huge challenge to managers. For years, they have tried to prevent the
introduction of the invader into the lake and now they have an even
bigger challenge in trying to keep the mussels from spreading to other
waters. Read More
We review news stories on a
daily basis and post stories of interest on Facebook as we
find them. However, we
know that many of you are not using Facebook so here are the
links we posted during October on
our Facebook pages.
Our Clean Angling Facebook
page is where we
post links that deal with fish, fishing, cleaning, boat
inspections, and other
issues of interest to anglers.
New York anglers have plead guilty to introducing aquatic invasive
species to Lake George. Each admitted guilt and have been fined for
boat owners will pay a new invasive species fee when they register
Spring Creek is one of the most famous fishing waters in the US.
Officials now report that New Zealand mud snails have become established
Hats off to Cody Wyoming's Big Horn
Basin chapter of Sportsmen for Fish and Wildlife. They were publicly
recognized for their invasive species efforts
aquatic weeds is very difficult because it is very difficult to target
weeds underwater. New research is showing that hydroacoustics may
provide a useful tool.
season is open in Minnesota and state officials are reminding waterfowl
hunters to make sure they are clean
most invasive species introductions are accidental, there is a long
tradition of misguided individuals intentionally spreading invasive
fish to new waters
On our Invasive Species Action Network
Facebook page we post all types of invasive species news including
about all types of invaders, policy
issues and other items of interest.
Many people are surprised that
earthworms are invaders in some parts of North America. New research is
showing how significant of an impact they are having
invasive problem that I have never been able to find an answer for is
how to control terrestrial weeds on small islands and gravel bars.
Could goats be the answer?
officials announced they will no longer allow the commercial trapping
of invasive monkeys at Silver River State Park
Master Gardeners are being urged to be
aware of the threat of invasive species and to learn the best ways to
protect themselves from invaders
Snapping turtles are native to parts of
the US. However, they are an invader in Oregon
typically believed that invaders succeed because the invaded habitat is
hospitable to the invader. New research indicates that an invader's
success may depend on its ability to quickly evolve in the new habitat
we usually discuss invaders from around the world that impact the US,
the problems flow both ways. Read about the ten worst invaders the US
sends to other countries
shrimp as long as your arm? Read about the invasion of giant Asian
tiger shrimp in the Gulf of Mexico
In April, Canadian officials declared
that Asian longhorned beetles had been eradicated from the country.
However, in October they reported a new discovery
American mink are an invasive species in South America and new evidence
shows that they may be having a serious impact on South America's
bio-control successfully fight the invasion of Asian tiger mosquitoes?
Researchers at the University of Kentucky believe they may have an
from the 2011 Japan tsunami continues to spread species around the
world. Most recently, a boat has washed ashore in British Columbia
officials are ramping up their effort to control populations of Tegu
lizards before they spread further
invasive crab species just discovered in eastern Maine has marine
ecologists worried about its potential impact on the environment.
olive trees have invaded many western riparian areas. From an initial
few trees, they have come to dominate in many areas. New research hopes
is focusing on the problem
species are a global problem. Read about their impact in Great Britain
The Clean Angling News is regularly produced by the Invasive Species Action Network. If you have questions, suggestions or would like to learn more about invasive species please contact us:
Invasive Species Action Network
215 East Lewis, #202
Livingston, MT 59047