INVASIVE SPECIES

Aug. 5, 2018

A study by researchers from IISER, Pune has shown that species can turn invasive in the same ecosystem (Normally, Invasive species are considered to come from outside a given ecosystem).

Terminologies:

Native species

Any species that historically occurs/occurred in that particular habitat.

Exotic species

Any species not native to that habitat; also known as alien species.

Invasive species

An exotic species whose introduction into an ecosystem successfully out-compete native organisms and harms ecosystems. Common characteristics are:

·         Rapid reproduction and growth,

·         High dispersal ability,

·         Phenotypic plasticity (ability to adapt physiologically to new conditions)

Note: Not all exotic species are invasive.

Source : The Hindu