Population Ecology
The Lotka-Volterra competition model is simply a modification of the logistic model. To capture the effect of a competitor on another species, The Lotka-Volterra equation adds a new term. a. What is the name of this term, and b. what is the symbol used?
The zero growth isocline line for Species A represents all the combinations of population sizes of Species A and Species B (who is a competitor of Species A) for which the growth of Species A is zero. True or False?
Assign the appropriate arrow set to each of the quadrants identified on the graph below:
Does arrow set 1, 2, or 3 represent quadrant A?
Does arrow set 1, 2, or 3 represent quadrant B?
Does arrow set 1, 2, or 3 represent quadrant C?
Using the graph below, answer the following questions:
Which point (A, B, or C) represents the point at which Species 2 has competitively excluded Species 1?
Which point (A, B, or C) represents the point at which Species 1 has competitively excluded Species 2?
Which point (A, B, or C) represents the point at which Species 1 and Species 2 coexist?
A common model to capture the dynamics of the host-parasite interactions is known as the SIR model.
What does S represent?
What does I represent?
What does R represent?
In modeling host-parasite interactions, the parameter R0 is the mean number of new infections caused by a single infective individual. If R0 is less than 1, will disease incidence increase or decrease?
Define the following terms:
Mutualism
Commensalism
Ecological Release
Niche Partitioning
Character Displacement
Competitive Exclusion Principle
Contiguous Allopathy
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