Question

How do introduced species become established in a new ecosystem? Check all that apply.

introduced to a habitat similar to their own

introduced to a habitat different than their own

outcompete native species

generally have no native predators

generally have native predators

often have high reproductive rates

often have low reproductive rates

can tolerate a range of conditions

Answer 1

Select the following (reasons in parentheses):

- introduced to a habitat similar to their own (easier to survive and reproduce)
- outcompete native species (competitive advantage helps establish populations)
- generally have no native predators (enemy release increases survival)
- often have high reproductive rates (rapid population growth aids establishment)
- can tolerate a range of conditions (broad tolerance lets them persist in new environments)

Do not select:
- introduced to a habitat different than their own (less likely to succeed unless they can tolerate it)
- generally have native predators (predation reduces establishment chances)
- often have low reproductive rates (slows population establishment)