Help please Why do invasive species often cause a decrease in biodiversity?

Invasive species are nearly always top predators.

Invasive species produce offspring with native species.

Invasive species compete for resources with native species.
Invasive species have higher mutation rates than native species.

Invasive species compete for resources with native species.

Explanation:

The main problem is that they change the food web.

I think its invasive species compete for resources with native species.

Explanation:

Invasive species can change the food web in an ecosystem by destroying or replacing native food sources. The invasive species may provide little to no food value for wildlife. Invasive species can also alter the abundance or diversity of species that are important habitat for native wildlife.

Invasive species are capable of causing extinctions of native plants and animals, reducing biodiversity, competing with native organisms for limited resources, and altering habitats. This can result in huge economic impacts and fundamental disruptions of coastal and Great Lakes ecosystems.

1. glaciers are melting

2. more water going into ocean (water's such as fresh waters, etc)