Final answer:
The described dispersion pattern of lizards defending territories of similar size is known as uniform spacing.
Step-by-step explanation:
The pattern of dispersion that is being described, where a species of lizards in which males defend territories of roughly the same size, is known as uniform spacing. This dispersion pattern occurs when individuals within a population are more or less equally spaced apart from one another. It is typical of species where individuals compete for resources or maintain territories, as is the case with the mentioned territorial lizards.
The pattern of dispersion being described is (a) Uniform spacing. This pattern is observed in species, such as the lizards mentioned, where males defend territories of roughly the same size. Uniform dispersion is seen in animals like penguins that maintain a defined territory for nesting. In this pattern, individuals are evenly spaced apart, indicating that they compete for a scarce environmental resource, such as territory or nesting sites.