Population Growth Equation
- In the population growth equation, the letter “r” is defined as
the per capita rate of increase, which is the difference
between the per capita birth rate (the number of offspring produced
per unit of time by an average member of the population) and per
capita death rate (average number of deaths in the population per
unit time).
What does the value of “r” indicate
about a population?
- All of the following characteristics are typical of a
K-selected population except:
- parental care of offspring
- iteroparous reproduction
- logistic population growth curve
- exponential population growth curve
- All of the following are correct statements about the
regulation of populations except:
- the logistic equation reflects the effect of density-dependent
factors, which can ultimately stabilize populations around the
carrying capacity.
- high densities in a population may cause physiological changes
that inhibit
reproduction.
- density-independent factors have a greater effect as a
population’s density increases.
- the effect of drought on population size does not increase as a
population’s density increases.
- Uniform spacing patterns in plants are often associated with
which of the following?
- antagonistic interactions among individuals in the
population
- chance
- the random distribution of seeds
- a patchy distribution of resources within the population's
range
- All of the following characteristics are typical of an
r-selected population except:
- high mortality rates of young
- much parental care of offspring
- small offspring
- many offspring per reproductive episode