Final answer:
Irregular population changes refer to fluctuations in population size that deviate from the expected or consistent growth patterns. These changes can occur due to various factors such as environmental variations, catastrophic events, or human migrations.
Step-by-step explanation:
Irregular population changes refer to fluctuations in population size that deviate from the expected or consistent growth patterns. These changes can occur due to various factors such as environmental variations, catastrophic events, or human migrations.
For example, an irregular population change can be seen in the case of a small isolated population that may face an unexpected event like a flood or wildfire, leading to a significant decline in their numbers. On the other hand, migration can also impact population changes as people move into or out of a specific region, causing shifts in population size.
Overall, irregular population changes highlight the dynamic nature of populations and the various factors that can influence their growth and decline.