Modeling Interspecific Competition

Question 1

What is the competition coefficient?

Answer 1

The magnitude of the negative effects of individuals of one species on individuals of a second species
Unit-less, per capita metric

Question 2

What happens when a=1?

Answer 2

Same effect as intraspecific competition

Question 3

What happens when a>1?

Answer 3

Greater effect than intraspecific competition

Question 4

What happens when a<1?

Answer 4

Smaller effect than intraspecific competition

Question 5

What is a12xN2?

Answer 5

Effect of size of species 2 on species 1

Question 6

What is A21xN1?

Answer 6

Effect of size of species 1 on species 2

Question 7

When we growth for a population be 0?

Answer 7

N2=K2-a21N1

Question 8

What are isoclines of zero population growth?

Answer 8

Population size of a species and its competitor where population growth of the species in competition is 0

Question 9

What happens when the state is below the isocline?

Answer 9

The population in species 2 will increase

Question 10

What happens when the state is above the isocline?

Answer 10

The population in species 1 will decrease

Question 11

Can co-existence occur?

Answer 11

Yes but only when interspecific competition is weaker than intraspecific competition

Question 12

What happens when one isocline is above another?

Answer 12

That species will lose, the species below will win