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Invasive species affect a wide range of sectors, including agriculture and forestry.
Regardless of which sector is studied, invasive species have four major consequences.
First, because there are few or no natural controls, it is extremely difficult and expensive
to manage invasive species once they have become established.
Authors from a 2005 review of invasive species in the U.S. calculated that damages and losses
from invasive species are estimated to be nearly 120 billion dollars annually.
Second, invasive species lead to increases in pesticide use.
Take for instance European gypsy moth, which has been established in the eastern U.S. since 1868,
and causes an estimated 30 million dollars annually in control and lost revenue to the
timber and agricultural industries.. Several millions of acres have been treated with pesticides to slow the spread of this insect.
Invasive species can also have significant effects on human health.
A 2013 study showed that there was an increase in human deaths related to cardiovascular
and respiratory illnesses in counties affected with emerald ash borer.
Humans exercise less and have less overall well-being if they live in areas affected by emerald ash borer.
Finally, invasive species are a leading cause for species extinctions worldwide, second
only to habitat destruction.. Invasive forest pests exist across the U.S.. Here is a map showing the distribution of over 450 exotic forest insect species.
The Pacific Northwest has a moderate amount of exotic forest pests, while the northeast
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disease or period of sickness affecting body or mind. Unhealthy conditions of the mind or body.
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Farthest above the ground; greatest (position). at or to considerable height.
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relating to or affecting respiration or organs of respiration.
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Physical activity to increase health and strength. To retain your ability or practice your skills.