Sunday, September 15, 2013

Invasive Species

What argon invasive species? Invasive species are non-native species of animals, plants, microorganisms or pathogens that purge on the habitat of other species, forcing the native species to decline in community or to disappear from their natural environment. These species are introduced each accidentally or intentionally by human beings or their activities. It is of the essence(p) to differentiate invasive from introduced species. Introduced species, which have been introduced to an area, are not considered a threat to the new environment, whereas invasive ones are always considered to be pests and harmful to the ecosystem in around way. ARS research includes studies of beneficial sibilation louses such(prenominal) as lovemaking bees. passion bees are the chief in southt pollinator for more than 90 crops in the linked States. They are vitally important to the farm economy of the nation and are heretofore valued for the beeswax, honey, and other products t hey produce. Most honey bees in the get together States are European bees, which were originally brought to this country by European colonists in the 1600s and 1700s. Africanized honey bees are the result of honey bees brought from Africa to brazil in the 1950s in hopes of breeding a bee enlighten adapted to the South American tropical climate.
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These African honey bees reached the Brazilian wild in 1957 and then spread sec and north until they officially reached the United States on October 19, 1990. They have since crossbreed with European honey bees, and because hybrid bees tend to exhibit some African honey bee traits while still retaining some European h! oney bee genes, the hybrid bees are referred to as Africanized honey bees. love life bees, whether they are European, African, or Africanized, only sting defensively. However, Africanized honey bees are a concern to farmers and beekeepers because they are extremely protective of their line and tend to be much more aggressive than European honey bees. This map layer was compiled by the National bear of maps of the...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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