Exam 51: Population Ecology

During the Lacerta vivipara lizard study, researchers monitored individuals on a daily basis to document the number of young produced by each female in the wild. What would be the best way to obtain the same type of data but not have to visit the site every day?

Figure 51.6 -Based on the figure above, which of the following statements correctly interprets the data?

Figure 51.10 -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?

$\text {Life Table for Lacerta vivipara in the Netherlands}$ Survivorship 3 fecundity 5 average number Year Number alive Survivorship Fecundity of offspring produced per female born 0 1000 1.000 0.00 0.00 1 763 0.763 1.70 1.30 2 308 0.308 2.94 0.91 3 158 0.158 4.13 0.65 4 57 0.057 4.88 0.28 5 10 0.010 6.50 0.07 6 7 0.007 6.40 0.04 7 2 0.002 6.30 0.01 $\text {Data are from Strijbosch and Creemers, 1988.}$ Figure 51.7 -Using information from the table above, which year was the most successful for the population?

Which of the following statements regarding the future of populations in developing countries is FALSE?

$\text {Life Table for Lacerta vivipara in the Netherlands}$ Survivorship 3 fecundity 5 average number Year Number alive Survivorship Fecundity of offspring produced per female born 0 1000 1.000 0.00 0.00 1 763 0.763 1.70 1.30 2 308 0.308 2.94 0.91 3 158 0.158 4.13 0.65 4 57 0.057 4.88 0.28 5 10 0.010 6.50 0.07 6 7 0.007 6.40 0.04 7 2 0.002 6.30 0.01 $\text {Data are from Strijbosch and Creemers, 1988.}$ Figure 51.7 -Using information from the table above, how would you describe the population dynamics of L. vivipara?

Why can't a female lizard have both high fecundity and high survival?

(a) Density dependence: Growth rate slows at high density. Figure 51.5 -In the figure above, which of the arrows represents the most rapid growth?

What can we NOT determine from examining age pyramids of human populations?

Figure 51.10 -Based on the diagrams in the figure above and on the large population of baby boomers in Canada, what graph best reflects Canadian population in 20 years?

Figure 51.4 -In the figure above, which of the lines represents the highest per- capita rate increase r)?

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?

Which statement about K is FALSE?

(a) (b) (c) Figure 51.8 -Assuming graph b) in Figure 51.8 is the result of some experimental treatment, what can be concluded?

The regular fluctuations in size of animal populations are termed

You observe two female fish of the same species breeding. One female lays 100 eggs and the other female lays 1000 eggs. Which one of the following statements does not agree with the concept of fitness trade- offs?

Figure 51.4 -In the figure above, which of the lines represents exponential growth?

The study of factors that determine the size and structure of populations through time is called

Conservationists will take snow geese off the endangered species list when the population hits 10,000. If populations are sustaining growth at r = 0.088 and the population in 2001 is 3000 individuals, in what year will snow geese be taken off the endangered species list?

Which of these terms defines how the organism allocates resources to growth, reproduction, and activities or structures related to survival?