Ch. 4 Test Population Ecology

What term refers to the number of males and females in various reproductive age groups?

• age structure

• carrying capacity

• reproductive dispersal

• birth rates

What are the 3 types of dispersion?

• Size, Density, Dispersion

• Groups, Couples, Single

• Near, Far, Wherever you are

• Random, Clumped, Uniform

What are two ways do decrease a population's growth rate?

• Mortality and Natality

• Mortality and Emigration

• Natality and Immigration

• Immigration and Emigration

Tags

NGSS.HS-LS2-6

What are two ways to add to a population's growth rate?

• Mortality and Emigration

• Mortality and Natality

• Immigration and Emigration

• Natality and Immigration

Tags

NGSS.MS-LS1-5

Which of the following determines the carrying capacity of an ecosystem?

• the most limited resources required for survival

• the amount of disease affecting organisms in the ecosystem

• the amount of rainfall the habitat receives

• the number of predators in the area

Tags

NGSS.HS-LS2-1

During the spring, you are studying the mice that live in a field near your home. There are lots of mice in this field, but you realize that you rarely observe any reproductive females. This most likely indicates

• a. that there is selective predation on female mice.
• that female mice die before reproduction
• that this habitat is a good place for the mice to reproduce
• that you are observing immigrant mice.

Tags

NGSS.MS-LS1-4

NGSS.MS-LS2-4

Carrying capacity is

• seldom reached by marine producers and consumers because of the vast resources of the ocean.
• the maximum population size that a particular environment can support.
• fixed for most species over most of their range most of the time.
• determined by density and dispersion data.

Tags

NGSS.HS-LS2-1

Which of the following characterizes relatively K-selected populations?

• low number of offspring with parental care and good chances of survival

• many offspring per reproductive episode with low parental care low chances of survival

• small offspring

• a high intrinsic rate of increase

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-2

Demography is the study of

• the vital statistics of populations and how they change over time
• death and emigration rates of a population at any moment in time
• the survival patterns of a population.
• life expectancy of individuals within a population.

To measure the population of lake trout in a 250 hectare lake, 200 individuals were netted and marked with a fin clip, and then returned to the lake. The next week, the lake is netted again, and out of the 200 lake trout that are caught, 50 have fin clips. Using the capture-recapture estimate, the lake trout population size could be closest to which of the following?

• 200
• 250
• 800
• 400

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-2