Question 1

Which of the following best describes population ecology?

Accepted Answer

The study of populations in relation to their environment, focusing on density, distribution, size, and age structure.

Question 2

A scientist wants to estimate the number of snails in a pond. She counts 10 snails per square meter in several sample plots. What is she measuring?

Accepted Answer

Population density

Question 3

Which of the following is NOT a factor that directly changes population size?

Accepted Answer

Carrying capacity

Question 4

A population of penguins is evenly spaced across a beach. What pattern of dispersion does this represent?

Accepted Answer

Uniform

Question 5

Which method is most appropriate for estimating the population size of a herd of buffalo in a large, open savanna?

Accepted Answer

Using aerial photography to count individuals

Question 6

Which equation correctly represents the exponential growth rate of a population?

Accepted Answer

$$G = rN$$

Question 7

In the logistic growth model, what does the variable $$K$$ represent?

Accepted Answer

The carrying capacity of the environment

Question 8

Which of the following best describes a Type III survivorship curve?

Accepted Answer

Low survivorship early in life, with few individuals reaching old age

Question 9

A population of insects experiences rapid growth when resources are abundant, but crashes when resources are depleted. Which growth pattern does this describe?

Accepted Answer

Boom and bust cycles

Question 10

Which reproductive strategy is favored in environments with high population density and stable resources?

Accepted Answer

k-selection

Question 11

If a population of 500 rabbits has a per capita rate of increase $$r = 0.2$$, what is the exponential growth rate $$G$$?

Accepted Answer

$$G = 100$$

Question 12

Which of the following is a direct consequence of producing a large number of offspring with little parental care?

Accepted Answer

Offspring are more vulnerable to predation and environmental hazards

Question 13

Which scenario best illustrates immigration in population dynamics?

Accepted Answer

Birds entering a new forest from a neighboring area

Question 14

A population of fish is distributed randomly throughout a lake. What is the most likely explanation for this pattern?

Accepted Answer

No strong attractions or repulsions among individuals

Question 15

Which of the following is a limiting factor that could cause a population to reach its carrying capacity?

Accepted Answer

Increased predation

Question 16

Which of the following best describes the main use of a life table in demography?

Accepted Answer

To summarize age-specific survival patterns and predict population trends

Question 17

If a population is growing according to the logistic model, which equation describes its growth rate?

Accepted Answer

$$G = rN \left( \frac{K-N}{K} \right)$$

Question 18

Which of the following is most likely to result in a clumped dispersion pattern?

Accepted Answer

Social behavior or patchy resource availability

Question 19

A population of elephants is observed to grow rapidly at first, then slow as it approaches a stable maximum size. What is this maximum size called?

Accepted Answer

Carrying capacity

Question 20

Which of the following is a real-world example of a boom and bust cycle?

Accepted Answer

Snowshoe hare and lynx populations fluctuating every 10 years

Population Ecology: Structure, Dynamics, and Growth

Study Guide - Practice Questions

Study Guide - Flashcards