Final answer:
The statement is false. Species with larger geographic ranges are more common in higher levels of spatial aggregation.
Step-by-step explanation:
The statement that a species encompasses the largest geographic range in the four hierarchical levels of spatial aggregation of populations is false.
In reality, larger geographic ranges are more commonly seen in higher levels of spatial aggregation. For example, non-passerine birds have a larger range compared to mammals. Additionally, studies have shown that species with smaller ranges are often geographically concentrated and not necessarily found in areas with the greatest number of species. The vulnerability of species with small ranges is also a factor to consider in understanding their distribution.