Exam 14: Interspecific Competition

According to the Lotka-Volterra equations,which of the following is not an expected outcome of competitive interactions between two species?

The burrowing behavior of small mammals can affect the competitive hierarchy of plants.

Environmental variation can allow competitors to coexist where under constant conditions one would exclude the other.

In the Lotka-Volterra equations,the zero ________ represent the combined values of species 1 and species 2 under which population growth is zero (dN/dt = 0).

According to the competitive ________ principle,two "complete competitors" cannot coexist.

Removing individuals during a competition experiment may have direct and indirect effects on the environment that are not intended or understood by the investigators and that can influence the response of the remaining species.

Coexisting species of wild cats differ in the size of their canine teeth,which corresponds to differences in their preferred species of prey.This outcome is most likely the result of

When a species expands its niche in response to the removal of a competitor,the species has experienced competitive ________.

The outcome of competitive interactions is determined solely by resource availability.