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WHAT IS AN INTRODUCTION WHAT IS A SPECIES

Según la definición del CBD "introducción" se refiere al movimiento, por acción humana, indirecta o directa, de una especie exótica fuera de su medio natural (pasado o presente). Este movimiento puede realizarse dentro de un país (traslocación) o entre países o zonas fuera de la jurisdicción nacional. Las introducciones pueden ser: · Intencionales: realizadas por el hombre, de forma consciente y con fines determinados. · No intencionales: producidas de forma involuntaria, pero siempre mediadas por agentes humanos.

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EXOTIC

(Exótica=alóctona=foránea=no native) as defined in the Convention on Biological Diversity the term "alien species" refers to a species, subspecies or lower taxon, introduced outside its natural range in the past or present, includes any part, gametes, seeds, eggs or propagules of such species which may become to survive and reproduce. The term is based on ecological and biogeographic concepts, and not political-administrative. Within a country a native species whose distribution is limited to a particular biogeographical area can become exotic if introduced (intentionally or unintentionally) in another area of country where there would be naturally (translocation).

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WHAT IS AN EXOTIC INVASIVE SPECIES?

As defined by the IUCN, an invasive alien species is "an alien species that is set in an ecosystem or natural or semi-natural habitat, is an agent of change and threatens biodiversity native. " As defined in the CBD, an invasive alien species is "an alien species whose introduction and / or spread threaten biological diversity" and cause serious damage to the economy and health. The term refers only to those species whose introduction (Whether voluntary or accidental) is always mediated by human action and under no circumstances referred to biological invasions that occur naturally (self-expansion of a species).