What conclusion can be drawn from research on abundance cycles of Canadian lynx and snowshoe hare?
A)A simple predator-prey model explains the results.
B)A simple plant-herbivore model explains the results.
C)Raptor activity has no effect on the outcome.
D)Complex variables are involved.
E)Manipulation of experimental plots stopped cyclic changes in population densities.

Question

Quizplus · Accepted Answer

Research on abundance cycles of Canadian lynx and snowshoe hare has revealed that complex variables are involved, such as climate, vegetation, disease, and interactions with other species. The predator-prey model alone cannot fully explain the observed cycles. Raptor activity has also been found to play a role in regulating the populations. Experimental manipulations have not been able to completely stop the cyclic changes in population densities.

What Conclusion Can Be Drawn from Research on Abundance Cycles