Final answer:
The Lyon hypothesis helps us understand population cycling in mammals, specifically in predator-prey dynamics, by considering density-dependent factors in addition to predation.
Step-by-step explanation:
The Lyon hypothesis helps us to understand the phenomenon of population cycling in mammals, specifically in the context of predator-prey dynamics. This hypothesis suggests that the cycling of predator and prey populations, such as the lynx and snowshoe hare populations mentioned in the question, is influenced by density-dependent factors in addition to predation.
For example, in the case of the hare population, lower fecundity caused by crowding can induce a cycling pattern. The Lyon hypothesis highlights the complexities of population dynamics and the need for accurate and sophisticated models in ecology.