One reason why an introduced species might be very successful in a new environment?

Many nonnative (alien) species are able to survive in new environments due to environmental similarity such as temperature, rainfall, seasonality and habitats where food and water is in abundance or enough to survive on and also the presence of other same species individuals with whom reproduction is possible. Another reason why nonative species survive in nonnative habitats is because of the lack of its native predators to keep its numbers in check and therefore they survive and reproduce quickly and outcompete native species.