Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 53, Problem 11TYU
Summary Introduction
Introduction: All the organisms interact with each other and with the environment to survive. The branch of science that deals with the study of the interaction of organisms and nature is termed as ecology.
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In populations of unitary organisms, growth rates and rates of development are generally influenced by intraspecific competition. This essentially leads to density-dependent effects on the composition of a population.
1) Explain/discuss figure b (limpets)
2) Explain/discuss figure a (reindeers)
During exponential growth, a population always(A) has a constant per capita population growth rate.(B) quickly reaches its carrying capacity.(C) cycles through time.(D) loses some individuals to emigration
Which of the following populations would be growing?
a) Geometric rate (1) = 0.63
b) Exponential growth rate (r) = 0.63
c) Net reproductive rate (R0) = 0.63
d) All of the above populations are growing
Chapter 53 Solutions
Biology (MindTap Course List)
Ch. 53.1 - Define population density and dispersion, and...Ch. 53.1 - What is the difference between population density...Ch. 53.1 - What are some biological advantages of a clumped...Ch. 53.2 - Prob. 2LOCh. 53.2 - Define intrinsic rate of increase and carrying...Ch. 53.2 - Prob. 1CCh. 53.2 - Prob. 2CCh. 53.2 - Prob. 3CCh. 53.3 - Contrast the influences of density-dependent and...Ch. 53.3 - What are three examples of density-dependent...
Ch. 53.3 - What are three density-independent factors?Ch. 53.4 - Contrast semelparous and iteroparous reproduction.Ch. 53.4 - Distinguish among species exhibiting an r...Ch. 53.4 - Prob. 7LOCh. 53.4 - What are the advantages of semelparity? of...Ch. 53.4 - Prob. 2CCh. 53.4 - Prob. 3CCh. 53.5 - Prob. 8LOCh. 53.5 - Prob. 1CCh. 53.6 - Prob. 9LOCh. 53.6 - Prob. 10LOCh. 53.6 - Distinguish between people overpopulation and...Ch. 53.6 - Prob. 1CCh. 53.6 - Prob. 2CCh. 53.6 - How can a single child born in the United States...Ch. 53 - Population _______________ is the number of...Ch. 53 - The per capita growth rate of a population where...Ch. 53 - The maximum rate at which a population could...Ch. 53 - When r is a positive number, the population size...Ch. 53 - In a graph of population size versus time, a...Ch. 53 - The largest population that can be maintained by a...Ch. 53 - Giant bamboos live many years without reproducing,...Ch. 53 - Predation, disease, and competition are examples...Ch. 53 - _______________ competition occurs within a...Ch. 53 - Prob. 10TYUCh. 53 - Prob. 11TYUCh. 53 - Which of the following patterns of cars parked...Ch. 53 - Prob. 13TYUCh. 53 - Prob. 14TYUCh. 53 - Prob. 15TYUCh. 53 - Prob. 16TYUCh. 53 - Prob. 17TYUCh. 53 - Prob. 18TYUCh. 53 - Prob. 19TYUCh. 53 - INTERPRET DATA Consider the age structure diagrams...Ch. 53 - SCIENCE, TECHNOLOGY, AND SOCIETY In what ways has...
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- How will you measure population density in following cases?(i) fish in a lake(ii) tiger census in a national park(iii) single huge banyan tree with large canopy .arrow_forwardA population’s carrying capacity(A) may change as environmental conditions change.(B) can be accurately calculated using the logistic growth model.(C) increases as the per capita population growth rate decreases.(D) can never be exceeded.arrow_forwardHow does the study of population ecology help us understand why some populations grow, some remain stable, and others decline? a.) Why has human population growth, which increased exponentially for centuries, started to decline in the past few decades? b.) What is carrying capacity? Do you think carrying capacity applies to people as well as to other organisms? Why or why not?arrow_forward
- Which of the following is true of a population approaching its carrying capacity? a) The population’s emigration is greater than its immigration. b) The population has access to unlimited resources. c) Intraspecific competition decreases. d) The population’s rate of increase approaches zero.arrow_forward1.) At approximately what year did the human population enter an exponential growth phase? 2.) Prior to that time, what was the approximate carrying capacity of Earth? 3.) State three significant technological developments that have acted to increase the carrying capacity of Earth’s environment since that time. 4.) Provide two examples of density-dependent factors that are contributing to or have the potential to contribute to environmental resistance in human populations.arrow_forwardAre the following statements True or false? 1) Population growth of many species is expected to be either exponential or geometric, unless some factor such as competition or predation is introduced. 2) The age distribution of populations reflects the influence of per capita rates of births, death, immigration, and emigration.arrow_forward
- A population that did not grow in close relation to the amount of resources available in the environment, and dramatically overshot the carrying capacity, would experience: A. logistic growth, such as shown on the S-shaped curve B. exponential growth, such as shown on the J-shaped curve C. unpredictable growth, such as shown on the ?-shaped curve D. exponential growth, such as shown on the S-shaped curve E.logistic growth, such as shown on the J-shaped curvearrow_forward3 Two species (A, B) have fecundities of A:3 and B:4 and both have the same survival rate. a) Which species has the greater fitness? B b) c) Is the population size increasing or decreasing? Impossible to determine without knowing the survival rate What is the maximum relative fitness of these two species? 1arrow_forwardThe observation that members of a population are uniformlydistributed suggests that(A) resources are distributed unevenly.(B) the members of the population are competing for access toa resource.(C) the members of the population are neither attracted to norrepelled by one another.(D) the density of the population is lowarrow_forward
- What is the purpose of age pyramids? Select one: a. It is useful in determining whether a population is at carrying capacity or not. b. It is used to compare exponential or logistic growth rate. c. It is a useful tool to predict the future population size of a region. d. It helps to determine whether the population is K-selected or r-selected.arrow_forwardDuring what phase of the growth curves in each diagram is the population just beginning to colonize an area? (C) a) Which type of population growth appears to continue unchecked? b) The growth curves in the Model are often referred to using the letters of the alphabet they resemble. The logistic growth curve is sometimes referred to as an S-curve. What letter would you use to describe the exponential growth curve? c) What causes the population to slow down during logistic growth? d) The maximum population an environment can sustain is affected by environmental factors that cause the population to level out or become stable. What term is used to describe this level of logistic growth? Diagram A-Exponential Growth Curve Population Numbers Exponential growth Lag phase Time Population Numbers Diagram B-Logistic Growth Curve Lag phase Time Carrying capacity (K) Pressure begins due to environmental resistancearrow_forwardThis figure plots the breeding populations of fur seals as they recovered from uncontrolled hunting. Based on this graph, what is the approximate carrying capacity of the fur seal's breeding habitat? 10 a) about 1,000 seals b) about 5,000 seals 6. c) about 10,000 seals 1915 1925 1935 1945 Year Data from K. W. Kenyon et al., A population study of the Alaska fur-seal herd, Federal Government Series: Special Scientific Report-Wildlife 12 (1954). © 2018 Pearson Education, Inc. Breeding male fur seals (thousands)arrow_forward
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