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Invasive Species

Published on Nov 23, 2015

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PRESENTATION OUTLINE

Brown Tree Snake

  • Australia
  • Arrived accidentally in imported cargo
  • Causes frequent power outages by climbing on electrical wires
  • Reproduction characteristics of brown tree snakes is not well known.
Photo by alistairas

ASIAN TIGER MOSQUITO

  • Asia
  • Accidentally imported in tires from Asia.
  • Has aggressive daytime human-biting behavior.
  • Females lay eggs near water.

AFRICANIZED HONEYBEE

  • Europe
  • Imported and bred with European honey bees to increase honey production.
  • More aggressive than the European honey bees.
  • Has a set of characteristics with respect to foraging behavior.

CANE TOAD

  • South America, Central America, Mexico, and Southern Texas
  • Introduced to control sugar cane pests but was accidentally released to places like the zoo.
  • Preys on and competes with native species.
  • Females lay spawns that carry thousands of eggs
Photo by blundershot

CACTUS MOTH

  • South America
  • Imported to the Caribbean to control prickly pear cacti
  • Feeds on prickly pear cacti
  • When traveling through the southeastern U.S, it endangers other cactus species and threatens many ecosystems.
  • A female can lay up to 50 eggs per generation and can produce at least three generations.

ASISN LONG-HORN BEETLE

  • Asia
  • Arrived accidentally in cargo from Asia
  • Destructive wood-boring pest of maple and other hardwoods.
  • Lays eggs in the same tree the emerged as adults.

EUROPEAN GYPSY MOTH

  • Europe
  • Imported for silk production.
  • Defoliates Trees
  • They don't have an impact on themselves.

MEDITERRANEAN FRUIT FLY

  • Sub-Sahran Africa
  • Imported fruit and other crops infested with fruit fly larvae
  • Attacks over 200 species of fruits and vegetablesAdult medflies lay their eggs under the skins of fruit, particularly where the skin is already broken.
  • Adult medflies lay their eggs under the skins of fruit, particularly where the skin is already broken.

ASIAN CITRUS PSYLLID

  • Southern Asia
  • Possibly arrived on imported plants
  • Damages citrus plants by feeding on sap
  • Eggs are laid on the tips of growing shoots, between and near the unfolding leaves

RED IMPORTED FIRE ANT

  • South America
  • Possibly introduced in ships' ballast
  • Can attack and cause painful stings on humans, pets, and livestock
  • Any impact is unknown.