POPULATION DYNAMICS/ECOLOGY
FINAL EXAM QUESTIONS WITH
VERIFIED ANSWERS
\.what is a population - ANSWERS-a group of organisms of the same species that
are coexisting in the same place and at the same time
\.in the following figure that represents the ideas of Malthus which points are
predicted to result in famine - ANSWERS-point of crisis and anything above it
\.models in population ecology are useful to ___________________ or
________________ natural processes - ANSWERS-understand or simplify
\.in the last two year Miguel has been conducting censuses of lizards in his house.
in 2018 he counted 100 lizards. in 2019 he counted 150 which are the result of 40
births, 6 individuals leaving permanently to the neighbors yard and 20 individuals
moving from the neighbors year to Miguels. how many individuals died from 2018
to 2019 - ANSWERS-4
\.if the lizard population is experiencing exponential growth with r = 0.3 and a big
fence is installed in 2019 to prevent immigration and emigration what will be the
population size in 30 years when Miguel retires (NO= 150) - ANSWERS-1215463
, \.which of the following is not an assumption of the exponential growth model -
ANSWERS-variations in survival and fecundity by age or size structure
\.a population of black capped chickadees in Oregon that breeds once a year has a
finite rate of increase of 1.05 in 2019 this population has 432 individuals. How
many individuals did it have in 2018 - ANSWERS-about 411
\.what kind of organism can follow exponential growth - ANSWERS-An example of
exponential growth is when an organism is an invasive species. Invasive species
that are expanding their range often show exponential growth because they have
almost unlimited resources. The invasive species are expanding their range so
they have plenty of space, often unlimited food resources, and often don't have
any natural predators so none are dying. The invasive species population
continues to grow in its new range and would show exponential growth.
\.what is the assumed relationship between population size and population
growth rate in an exponential growth model - ANSWERS-no relationship
\.in the logistic growth model (density dependent) dN/dt = rN(1-N/K) the quantity
of (1-N/K) represents - ANSWERS-the unused portion of the carrying capacity
\.in a logistic growth model what happens when N > K - ANSWERS-population size
decreases
\.which of the figures represents the relationship between population size and
dN/dt in a logistic growth model - ANSWERS-a negative relationship
FINAL EXAM QUESTIONS WITH
VERIFIED ANSWERS
\.what is a population - ANSWERS-a group of organisms of the same species that
are coexisting in the same place and at the same time
\.in the following figure that represents the ideas of Malthus which points are
predicted to result in famine - ANSWERS-point of crisis and anything above it
\.models in population ecology are useful to ___________________ or
________________ natural processes - ANSWERS-understand or simplify
\.in the last two year Miguel has been conducting censuses of lizards in his house.
in 2018 he counted 100 lizards. in 2019 he counted 150 which are the result of 40
births, 6 individuals leaving permanently to the neighbors yard and 20 individuals
moving from the neighbors year to Miguels. how many individuals died from 2018
to 2019 - ANSWERS-4
\.if the lizard population is experiencing exponential growth with r = 0.3 and a big
fence is installed in 2019 to prevent immigration and emigration what will be the
population size in 30 years when Miguel retires (NO= 150) - ANSWERS-1215463
, \.which of the following is not an assumption of the exponential growth model -
ANSWERS-variations in survival and fecundity by age or size structure
\.a population of black capped chickadees in Oregon that breeds once a year has a
finite rate of increase of 1.05 in 2019 this population has 432 individuals. How
many individuals did it have in 2018 - ANSWERS-about 411
\.what kind of organism can follow exponential growth - ANSWERS-An example of
exponential growth is when an organism is an invasive species. Invasive species
that are expanding their range often show exponential growth because they have
almost unlimited resources. The invasive species are expanding their range so
they have plenty of space, often unlimited food resources, and often don't have
any natural predators so none are dying. The invasive species population
continues to grow in its new range and would show exponential growth.
\.what is the assumed relationship between population size and population
growth rate in an exponential growth model - ANSWERS-no relationship
\.in the logistic growth model (density dependent) dN/dt = rN(1-N/K) the quantity
of (1-N/K) represents - ANSWERS-the unused portion of the carrying capacity
\.in a logistic growth model what happens when N > K - ANSWERS-population size
decreases
\.which of the figures represents the relationship between population size and
dN/dt in a logistic growth model - ANSWERS-a negative relationship
