E 'was a classification that represents the species which tend to destabilize the ecosystem, but often their behavior is dictated by an extreme form of survival but constantly threatens biodiversity .
absolutely not ever think that animals, even some seemingly harmless, could create imbalances in your environment with which they have close contact.
Elephants
animals are large and very large appetite, which, fortunately for the nomads are continuing their search for food. They are vegetarians and eat mostly branches, but they can safely eat 150 kilograms of vegetables. Being nomads, as I said earlier, they never manage to devastate an area.
Locust
Unfortunately when you move during migration, they move to a huge number, we talk about 5-6 billion animals and the size can range from 30 to 90 square kilometers.
usually fail in a short time to destroy from 4 000 to 8 thousand tons of fodder, cereals and seeds. Obviously this is a real plague.
crown of thorns
It 's a starfish, but with the characteristic of having the body entirely covered with poisonous spines. Has a size of about 40 inches and feeds on coral polyps. Undoubtedly is helping to slow but inexorable destruction of coral reefs. This type of starfish, in recent years, has grown at a rapid pace and an Australian research confirms that rapid development has been given by the poor quality of sea water, infested with fertilizers and discharges of various kinds. Pollution of the sea has increased significantly of microalgae, ideal food for the larvae of the crown is thorns. At this rate, if the improvements will not intervene in this process of deterioration, the estimates say that between 30 or 50 years, the corals could disappear.
Cattle
FAO blames them for 18% of the production of greenhouse gases, because of their considerable body of methane emission. With a growing global demand for food of cattle herds have increased dramatically, many in the Amazon where they, with their intensive grazing made some areas no longer usable. Many trees are felled to make way for other pastures, in so doing, create damage to biodiversity, global deforestation and rainforest.
Carpe
The carp are destructive of the flooded areas, because they eat both plants and animals. The type of Asian carp can reach a good size, weighing about 18 pounds too. They are used to probe the area and, once detected, to colonize it. The United States each year, spend important amounts to stem the growing development of these fish in the waters of its rivers.
Goats
animals are terribly hungry and eat everything you plant, not even choose the parts of a plant.
cane toads
They live in Oceania, the Caribbean and the United States. The toads were brought from South America for 30 years destroying pests of sugar cane, without getting the big results. In fact, these animals have shown some real enemies of the ecosystem as they developed too much, we are talking about 100 million. They are killing an enormous number of native animals, as being very poisonous toads, are lethal to those animals, like snakes and small crocodiles that eat them.
beetles bark beetles
beetles bark beetles are animals that feed on plant organs, deciduous and coniferous trees. Use however, as the seat reproductive, the phloem, which is the most inner bark of trees. We find them mainly in North America and derive nourishment not only bark but can transmit diseases, devastating whole areas of forest.
Ratti
rats usually are not dangerous animals, but when they come into contact with habitats other than those to which they are accustomed, they often become. In Australia, arrived with the ships and landed on the ground by accident in 1918, in 100 years have created significant problems. In this case, also known as the black rat roof rat has been reproduced at a rapid pace and caused the extinction of five species of endemic birds, causing a significant decline in populations of other species of birds .
Humans
I left for last the most dangerous animals on Earth, human beings. You know what they are capable, but, by themselves, the intelligence that might help them to change their way of life and with more awareness.
Source: (Nextme)
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