Exam 9: Population Growth

Species with type III survivorship curves experience extremely high mortality rates in early life.

If survival rates do not vary with age,as in many species of perennial plants,reptiles,adult birds,and rodents,survivorship curves are typically

The number of births per female of age x is referred to as the

What value do mortality rate curves end on?

________ stochasticity is the random variation in birth and death rates that occurs in populations from year to year.

The net reproductive rate (R0)refers to the average number of females that will be produced during a lifetime by a newborn female.

Movement in and out of a population occurs in a(n)________ population.

Exponential population growth does not occur in natural populations.

In a population projection matrix,S34 would represent

Which model of population growth would you employ if reproduction occurs in discrete time periods rather than being continuous?

A population in which λ equals one has reached a stable-age distribution.

A time-specific life table follows a group of individuals born at a given time from birth to death.

The net reproductive rate (R0)is equal to ________ when females,on average,replace themselves in a population.

Which of the following equations reflects the exponential model of population growth?

The Dall sheep (a)curve represents which type of survivorship curve?

Which stage has the longest life expectancy?

The ________ birthrate is expressed as the births per 1000 individuals per unit of time.

In a given life table,qx represents the age-specific mortality rate.

A(n)________ life table is constructed by sampling the population to obtain a distribution of age classes during a single time period.

There is no change in population size when the instantaneous per capita rate of growth (r)is equal to ________.