Exam 8: Properties of Populations

An ecologist spent a year studying the population dynamics of a species of duck on a lake.At the beginning of the year,there were 86 adults.Of these,16 adults left the lake,12 adults arrived on the lake from elsewhere,76 chicks hatched from eggs,24 chicks survived to become adults,and 8 adults died.How many individuals emigrated?

How might a species' range be extended?

Which of the following is an example of migration?

Which of the following is an example of dendrochronology?

The movement of individuals in space is called

Which of the following best represents a measure of ecological density?

The area inhabited by all individuals of a particular species is known as the population's

The distribution of species is rarely determined by minimum and maximum temperature tolerances.

The sex ratio of human senior citizens (>65 years)is

Which of the following methods would work best to estimate flower species diversity?

A group of individuals of the same species inhabiting a given area is called a(n)________.

Ecological density is a measure of the number of individuals per unit of available living space.

Population ________ is the number of individuals per unit area,or per unit volume.

The primary factors driving the dynamics of population abundance are the demographic processes of ________ and ________.

A population's density is calculated as the

A group of local subpopulations is called a(n)

Which of the following is not an invasive species?

Because a direct count of all individuals within a population is often impossible,population density is usually estimated by one or more methods of ________.

Which of the following represents a modular organism?

Counting the total number of individuals within a square or rectangle of known area,referred to as a(n)________,is a sampling method that is commonly used to study plants or other sessile animals.