Elaborate how invasion by an alien speci | Class 12 Biology Chapter Biodiversity and Conservation, Biodiversity and Conservation NCERT Solutions

Invasive species are also known as introduced, exotic or non- native species which are not native to an ecosystem and have the tendency to damage or affect the ecosystem. They are the second major cause of the loss of biodiversity. Some possible reasons are as follows that these species reduces the species diversity of an area:

1. They show rapid growth and reproduces fast and have the potential to cause harm. They are capable of causing extinction of native plants and animals by competing for the limited resources and altering habitat that leads to loss of biodiversity.
2. The sudden introduction of the invasive species to the particular given ecosystem leads to disastrous consequences for those species that are already present there, i.e. native species which also leads to loss of biodiversity.
3. For example: accidental introduction of an Atlantic comb jellyfish species to the Black sea.