Question 1

Figure 52.6  
-Using Figure 52.6,calculate the net reproductive rate (R₀)for this population.

Accepted Answer

A) 2)00 
B) 3)26 
C) 1)30 
D) 2)31 
A) 2)00 
B) 3)26 
C) 1)30 
D) 2)31

Question 2

It is estimated that snow geese will be able to sustain an r of 0.088 indefinitely.If the flock currently contains 3000 individuals,how long will it take to double?

Accepted Answer

A) 7)9 years 
B) 34.1 years 
C) 264 years 
A) 7)9 years 
B) 34.1 years 
C) 264 years

Question 3

Figure 52.12  
-What conclusion can you draw from Figure 52.12?

Accepted Answer

A) Hares control lynx population size. 
B) Lynx control hare population size. 
C) Lynx and hare populations are independent of each other. 
D) The relationship between the populations cannot be determined from this graph. 
A) Hares control lynx population size. 
B) Lynx control hare population size. 
C) Lynx and hare populations are independent of each other. 
D) The relationship between the populations cannot be determined from this graph.

Question 4

If 40 individuals were alive in 1921 and 856 existed in 2007,what is r?

Accepted Answer

A) 0)020 
B) 0)249 
C) 0)05 
D) 0)036 
A) 0)020 
B) 0)249 
C) 0)05 
D) 0)036

Question 5

Figure 52.3  
-Assuming that these populations are density dependent,what is the likely outcome if the system depicted in Figure 52.3 were allowed to continue?

Accepted Answer

A) Population growth would continue to be discontinuous. 
B) Individual growth would continue to be indeterminate. 
C) Population growth would likely decrease. 
D) Populations would go extinct. 
A) Population growth would continue to be discontinuous. 
B) Individual growth would continue to be indeterminate. 
C) Population growth would likely decrease. 
D) Populations would go extinct.

Question 6

Figure 52.10  
-Based on the diagrams in Figure 52.10 and on the large population of baby boomers in the United States,what graph best reflects U.S.population in 20 years?

Accepted Answer

The answer of Figure 52.10  
-Based on the diagrams...

Question 7

Figure 52.3  
-In Figure 52.3,which of the lines represents the highest per-capita rate increase (r)?

Accepted Answer

A) line A 
B) line B 
C) line C 
D) line D 
A) line A 
B) line B 
C) line C 
D) line D

Question 8

Figure 52.6  
-Using Figure 52.6,how would you describe the population dynamics of L.vivipara?

Accepted Answer

A) The population is increasing. 
B) The population is decreasing. 
C) The population is stable. 
D) The figure does not provide this information. 
A) The population is increasing. 
B) The population is decreasing. 
C) The population is stable. 
D) The figure does not provide this information.

Question 9

Figure 52.7  
-Based on the graphs from the Park Grass study in Rothamsted,UK (Figure 52.7),which species was most likely controlled by density-independent factors?

Accepted Answer

A) Tragopogon pratensis 
B) Trifolium pratense 
C) Conopodium majus 
D) It does not appear that any of the species are under density-independent control and instead are mainly regulated by density-dependent factors. 
E) All of the species appear to be controlled by density-independent factors. 
A) Tragopogon pratensis 
B) Trifolium pratense 
C) Conopodium majus 
D) It does not appear that any of the species are under density-independent control and instead are mainly regulated by density-dependent factors. 
E) All of the species appear to be controlled by density-independent factors.

Question 10

Figure 52.5  
-Based on Figure 52.5,which of the following statements correctly interprets the data?

Accepted Answer

A) Female density is affected by clutch size. 
B) Clutch size is affected by female density. 
C) Survivorship is affected by female density. 
A) Female density is affected by clutch size. 
B) Clutch size is affected by female density. 
C) Survivorship is affected by female density.

Question 11

Projections for Earth's human population by 2050 that were made in 1992 were much higher than those made in 2002.Which of the following did not likely contribute to this change in projection?

Accepted Answer

A) Human fertility rates in developing countries have significantly decreased since 1992. 
B) Deaths from AIDS have significantly increased since 1992. 
C) The number of developed countries has significantly increased since 1992. 
D) The birth rates in developed countries have decreased since 1992. 
A) Human fertility rates in developing countries have significantly decreased since 1992. 
B) Deaths from AIDS have significantly increased since 1992. 
C) The number of developed countries has significantly increased since 1992. 
D) The birth rates in developed countries have decreased since 1992.

Question 12

Figure 52.2  
-Looking at the data in Figure 52.2,what can be said about survival and clutch size?

Accepted Answer

A) Animals with low survival tend to have low clutch sizes. 
B) High clutch sizes tend to produce animals with low survival. 
C) Animals with high fecundity tend to live longer. 
D) Animals with high fecundity tend not to live as long as animals with low fecundity. 
A) Animals with low survival tend to have low clutch sizes. 
B) High clutch sizes tend to produce animals with low survival. 
C) Animals with high fecundity tend to live longer. 
D) Animals with high fecundity tend not to live as long as animals with low fecundity.

Question 13

Figure 52.11  
-Figure 52.11 represents the dynamics of _____.

Accepted Answer

A) metapopulations 
B) extinction 
C) emigration 
D) both metapopulations and extinction 
E) both extinction and emigration 
A) metapopulations 
B) extinction 
C) emigration 
D) both metapopulations and extinction 
E) both extinction and emigration

Question 14

Figure 52.1  
-In Figure 52.1,which of the following survivorship curves most applies to humans living in developed countries?

Accepted Answer

A) curve A 
B) curve B 
C) curve C 
D) curve A or curve B 
E) none of the above 
A) curve A 
B) curve B 
C) curve C 
D) curve A or curve B 
E) none of the above

Question 15

Figure 52.6  
-Using Figure 52.6,determine which age class year would hurt the population growth most if it were wiped out by disease.

Accepted Answer

A) age class year 1 
B) age class year 2 
C) age class year 3 
D) age class year 4 
E) age class year 5 
A) age class year 1 
B) age class year 2 
C) age class year 3 
D) age class year 4 
E) age class year 5

Question 16

It is estimated that a flock of wood buffalo crane should be able to sustain an r of 0.085 for the foreseeable future.If the flock currently contains 350 individuals,how long will it take for that population to double?

Accepted Answer

A) between 7.0 and 9.0 years 
B) between 9.0 and 11.0 years 
C) between 11.0 and 13.0 years 
D) less than 7 years 
E) more than 13 years 
A) between 7.0 and 9.0 years 
B) between 9.0 and 11.0 years 
C) between 11.0 and 13.0 years 
D) less than 7 years 
E) more than 13 years

Question 17

Figure 52.7  
-Based on the graphs in Figure 52.7 from the Park Grass study in Rothamsted,UK,which species is most likely the superior competitor?

Accepted Answer

A) Tragopogon pratensis 
B) Trifolium pratense 
C) Conopodium majus 
D) From the information presented in the figure we cannot determine which species is the superior competitor. 
A) Tragopogon pratensis 
B) Trifolium pratense 
C) Conopodium majus 
D) From the information presented in the figure we cannot determine which species is the superior competitor.

Question 18

A model that estimates the likelihood that a population will avoid extinction for a given period of time is called a(n)_____.

Accepted Answer

A) metapopulation 
B) population viability analysis 
C) age pyramid 
D) life table 
A) metapopulation 
B) population viability analysis 
C) age pyramid 
D) life table

Question 19

Suppose researchers marked 800 turtles and later were able to trap a total of 300 individuals in that population,of which 150 were marked.What is the estimate for total population size?

Accepted Answer

A) between 900 and 1200 
B) between 1200 and 1500 
C) between 1500 and 1800 
D) between 1800 and 2100 
E) It is impossible to estimate the total population size from the information given. 
A) between 900 and 1200 
B) between 1200 and 1500 
C) between 1500 and 1800 
D) between 1800 and 2100 
E) It is impossible to estimate the total population size from the information given.

Question 20

Figure 52.9  
-Figure 52.9 shows the age structure of Common Primrose populations as they change over time.One of the populations is growing under high light conditions and the other under low light.Based on the graphs in Figure 52.9,which graph,(a)or (b),represents a population growing in high light availability?

Accepted Answer

A) (a) 
B) (b) 
C) cannot tell with this information 
A) (a) 
B) (b) 
C) cannot tell with this information

Exam 52: Population Ecology

Figure 52.6 -Using Figure 52.6,calculate the net reproductive rate (R₀)for this population.

It is estimated that snow geese will be able to sustain an r of 0.088 indefinitely.If the flock currently contains 3000 individuals,how long will it take to double?

Figure 52.12 -What conclusion can you draw from Figure 52.12?

If 40 individuals were alive in 1921 and 856 existed in 2007,what is r?

Figure 52.3 -Assuming that these populations are density dependent,what is the likely outcome if the system depicted in Figure 52.3 were allowed to continue?

Figure 52.10 -Based on the diagrams in Figure 52.10 and on the large population of baby boomers in the United States,what graph best reflects U.S.population in 20 years?

Figure 52.3 -In Figure 52.3,which of the lines represents the highest per-capita rate increase (r)?

Figure 52.6 -Using Figure 52.6,how would you describe the population dynamics of L.vivipara?

Figure 52.7 -Based on the graphs from the Park Grass study in Rothamsted,UK (Figure 52.7),which species was most likely controlled by density-independent factors?

Figure 52.5 -Based on Figure 52.5,which of the following statements correctly interprets the data?

Projections for Earth's human population by 2050 that were made in 1992 were much higher than those made in 2002.Which of the following did not likely contribute to this change in projection?

Figure 52.2 -Looking at the data in Figure 52.2,what can be said about survival and clutch size?

Figure 52.11 -Figure 52.11 represents the dynamics of _____.

Figure 52.1 -In Figure 52.1,which of the following survivorship curves most applies to humans living in developed countries?

Figure 52.6 -Using Figure 52.6,determine which age class year would hurt the population growth most if it were wiped out by disease.

It is estimated that a flock of wood buffalo crane should be able to sustain an r of 0.085 for the foreseeable future.If the flock currently contains 350 individuals,how long will it take for that population to double?

Figure 52.7 -Based on the graphs in Figure 52.7 from the Park Grass study in Rothamsted,UK,which species is most likely the superior competitor?

A model that estimates the likelihood that a population will avoid extinction for a given period of time is called a(n)_____.

Suppose researchers marked 800 turtles and later were able to trap a total of 300 individuals in that population,of which 150 were marked.What is the estimate for total population size?

Biology and the Tree of Life

Water and Carbon: the Chemical Basis of Life

Protein Structure and Function

Nucleic Acids and the Rna World

An Introduction to Carbohydrates

Lipids, membranes, and the First Cells

Inside the Cell

Cell-Cell Interactions

Cellular Respiration and Fermentation

Photosynthesis

The Cell Cycle

Meiosis

Mendel and the Gene

Dna and the Gene: Synthesis and Repair

How Genes Work

Transcription and Translation

Control of Gene Expression in Bacteria

Control of Gene Expression in Eukaryotes

Analyzing and Engineering Genes

Genomics

Principles of Development

An Introduction to Animal Development

An Introduction to Plant Development

Evolution by Natural Selection

Evolutionary Processes

Speciation

Phylogenies and the History of Life

Bacteria and Archaea

Protists

Green Plants

Fungi

An Introduction to Animals

Protostome Animals

Deuterostome Animals

Viruses

Plant Form and Function

Water and Sugar Transport in Plants

Plant Nutrition

Plant Sensory Systems, signals, and Responses

Plant Reproduction

Animal Form and Function

Water and Electrolyte Balance in Animals

Animal Nutrition

Gas Exchange and Circulation

Electrical Signals in Animals

Animal Sensory Systems and Movement

Chemical Signals in Animals

Animal Reproduction

The Immune System in Animals

An Introduction to Ecology

Behavioral Ecology

Community Ecology

Ecosystems

Biodiversity and Conservation Biology

Filters