The concept exotic or invasive species some time controversial. What do you think.
All invasive species are exotic (e.g. Eichhornia crassipes, Lantana camara & Parthenium hysterphorus) but all exotic species are not invasive (e.g. Acacia auriculiformis, Grevellia robusta & Psidium guajava).
Please see the following paper
Article Exotic Plant Species as Problems and Solutions in Ecological...
Best Regards P. R. Jayachandran
Each area where the species is found should have specific laws governing the species use and existence.
Not all exotic /non native species are invasive in nature. When the exotic species become uncontrollable and started affecting the native ecosystem, then it is known as invasive species or sometimes also known as invasive alien species.
All invasive species are exotic (e.g. Eichhornia crassipes, Lantana camara & Parthenium hysterphorus) but all exotic species are not invasive (e.g. Acacia auriculiformis, Grevellia robusta & Psidium guajava).
THESE two concepts are totally different sir.
An exotic species (alien, introduced, or non-native species) that have been introduced in a zone out of its natural distribution.
Whereas a species is invasive (may be either exotic or indigenous one ) when increase of its population is harmful for other species.
Prabhjot Kaur are you sure, the increase population of Indigenous species are Invasive??
I hope the following link will be helpful about the idea of invasive species.
https://www.nature.com/subjects/invasive-species
Invasive species
Invasive species are non-native species that have been introduced to an ecosystem and have established there causing ecological damage. The study of invasive species involves questions about the traits that cause their damaging behaviour, and how they can be managed or eradicated.
An invasive species can be any kind of living organism—an amphibian (like the cane toad), plant, insect, fish, fungus, bacteria, or even an organism's seeds or eggs—that is not native to an ecosystem and causes harm. They can harm the environment, the economy, or even human health.
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