THE MOST INVASIVE CREATURES ON EARTH
Added on: 13th Sep 2016
THE SNAKEHEAD FISH
The northern snakehead, as it is also known, is a type of
snakehead fish native to China, Russia, North Korea, and
South Korea. In Europe, the first report of the species was
from Czechoslovakia (the Czech Republic) in 1956. In the
United States, the fish is considered to be a highly
invasive species, which has led to major media
coverage and two horror films.
THE COTTON WHITEFLY
The cotton whitefly has been reported on all continents except
Antarctica. It is believed the cotton whitefly has spread
throughout the world through the transport of plant
products that were infested with them. Once established,
it quickly spreads and through its feeding habits and the
transmission of diseases, it causes destruction
to crops everywhere.
THE EUROPEAN RABBIT
The feral European rabbit is one of the most widely distributed
and abundant mammals in Australia. It causes severe damage
to the natural environment and to agriculture. European rabbit
control is complicated because of welfare and harvesting issues
and because both native and introduced predators feed on
feral rabbits in many parts of Australia. An invader and
victim at the same time.
THE CANE TOAD
Cane toads were introduced to many countries as biological
control agents for various insect pests on sugarcane and
other crops. The cane toads have proved to be pests
themselves. They will feed on almost any terrestrial animal
and compete with native amphibians for food and
breeding habitats. Their toxic secretions are known to cause
illness and death in domestic animals that come in contact
with them, such as dogs and cats, and wildlife such as
snakes and lizards.
THE BLACK RAT
A native of the Indian subcontinent, the so-called black rat has
now spread throughout the world. It is widespread in forests
and woodlands as well as being able to live in and around
buildings. It will feed on and damage almost any edible thing.
To get an idea of how invasive this creature is, keep in mind it’s
most frequently identified with catastrophic declines of
birds on islands.
THE BROWN TREE SNAKE
When the brown tree snake was accidentally introduced to
Guam it caused the local extinction of most of the island’s
native bird and lizard species. It also caused “cascading”
ecological effects by removing native pollinators, causing
the subsequent decline of native plant species. The fragility
of the ecosystems of other Pacific islands to which cargo
flows from Guam has made the potential spread of the
brown tree snake from Guam a major concern.
Beautiful and deadly the Lionfish are known for their voracious
appetite. Their overabundance is threatening life on coral reefs
which serve as habitats for other fish species. Native to the
Pacific Ocean, the Lionfish was traded for their bizarre
appearance which has led to their spread throughout the
Gulf of Mexico, the Atlantic, and the Caribbean.
With a continuously growing population of over seven billion,
human beings have been responsible for the extinction of
various living organisms, from animals and insects to plants
and sea life. Additionally, no other living creature has
damaged the atmosphere, nature, and other humans
the way we have.