BIOL 301 Exam Practice Questions and
Answers
Which dispersion even would you expect to observe for a population with patchy resources? - Ans:-
Clustered
Select the correct term for this definition: Number of individuals per unit area or volume. - Ans:-
Density
Which metapopulation model most ...
Which model would evaluate population growth taking into account density dependent factors? -
Ans:✔✔-dN/dt = rN (1-(n/K))
Which of the following are density independent factors? - Ans:✔✔-temperature, precipitation and
catastrophic events
True/False: Negative density dependence maintains that as a population density increases, the intrinsic
growth rate increases. - Ans:✔✔-False
Using a continuous model, what would the population size be for an initial population (N=300) with an
intrinsic growth rate of 0.42 and a time period of 5 years? - Ans:✔✔-2449.85
dN/dt= rN. From this equation, what does N represent? - Ans:✔✔-the number of individuals in the
population
You are studying a population of frogs which made a remarkable recovery from the brink of extinction
increasing from 65 individuals to 1305 over 15 years with an intrinsic growth rate of 0.2. What is the
doubling time for this species? - Ans:✔✔-3.45 years
Based on the r value given in the previous question, what would you expect the corresponding lambda
to be? - Ans:✔✔-greater than 1
Calculate the generation time (T) for a population with a net reproductive rate (Ro= 2.5) and expected
births weighted by age of 5.3. - Ans:✔✔-2.12
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