2. Competition with other species: As the environment changes, new species may move into the area that are better adapted to the new conditions. These species can compete with the native animals for resources such as food and water, leading to a decline in the native population.
3. Disease: Changes in the environment can also lead to the spread of new diseases that the animals are not immune to. This can cause a rapid decline in the population and may even lead to extinction.
4. Inbreeding: If the population size becomes too small, the animals may be forced to inbreed, which can lead to genetic problems and a decline in the overall health of the population.
5. Extinction: If the animal population is unable to adapt to the changing conditions, it may eventually become extinct. This is the most severe consequence of an animal species not being able to adapt to changes in its habitat.