Loose Leaf For Integrated Principles Of Zoology
18th Edition
ISBN: 9781260411140
Author: Cleveland P Hickman Jr. Emeritus, Susan L. Keen, David J Eisenhour Professor PhD, Allan Larson, Helen I'Anson Associate Professor of Biology
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 38, Problem 4RQ
Define the niche concept. How does the “realized niche” of a population differ from its “fundamental niche”? How does the concept of niche differ from the concept of guild?
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Distinguish between the exponential and logistic growth of a population and describe the nature of their growth curves. Define environmental resistance. What is the carrying capacity of an environment? Define and give an example of a population crash.
Chapter 38 Solutions
Loose Leaf For Integrated Principles Of Zoology
Ch. 38 - The term ecology is derived from the Greek meaning...Ch. 38 - Prob. 2RQCh. 38 - Prob. 3RQCh. 38 - Define the niche concept. How does the realized...Ch. 38 - Populations of independently living (unitary)...Ch. 38 - Prob. 6RQCh. 38 - Contrast exponential and logistic (= sigmoid)...Ch. 38 - Growth of a population can be hindered by either...Ch. 38 - Herbivory is beneficial for the animal (+) but...Ch. 38 - Prob. 10RQ
Ch. 38 - Define predation. How does the predator-prey...Ch. 38 - Prob. 12RQCh. 38 - Prob. 13RQCh. 38 - What is a trophic level, and how does it relate to...Ch. 38 - Define productivity as the word is used in...Ch. 38 - Prob. 16RQCh. 38 - What conditions produce an inverted pyramid of...Ch. 38 - Prob. 18RQCh. 38 - Prob. 19RQCh. 38 - What do paleontological studies show about the...Ch. 38 - Prob. 1FFT
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which set of values for the intrinsic rate of increase, finite rate of increase, and net reproductive rate could describe the same growing population? (Note: you should not need to do any math to figure this one out. Just think through general interpretations of each parameter) Or = -0.14, A = 0.87, RO = 0.5 r = 3.0, A = 0.22, RO = 0.5 r = 0.22, A = 1.25, RO = 3.0 %3! r = = 0.22, A = -0.14, RO = 0.5arrow_forwardexplain properly. How is a species’ population dynamics affected by the presence of another species with the same niche?arrow_forwardA niche is loosely defined as an organism's role in its environment, which can include factors such as feeding preference, nesting behaviors, mating behaviors, method of obtaining prey, and local habitats. Keeping Gause's law in mind, do some research on the California red-legged frog and the North Pacific tree frog (use wiki or another Google search). Create a chart comparing the two with respect to their niche or lifestyle that can explain how these two frogs can co-exist in the same ecosystem.arrow_forward
- How 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_forwardIn 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)arrow_forwardThe competitive exclusion principle is best defined as Multiple Choice the competition among individuals of the same species in the same location. the principle that two species that occupy the same niche cannot coexist indefinitely. an interaction between species that enhances the fitness of the exploiting individual while reducing the fitness of the exploited individual. the principle that if an organism allocates energy to one function, such as growth or reproduction, it reduces the amount of energy available to other functions.arrow_forward
- Species interactions influence an True False organism's realized niche.arrow_forwardWrite a generalized model for exponential population growth. Define your terms. Then, draw a plot showing an example, being sure to label your axes. Write a formula that extends the preceding model to incorporate carrying capacity, producing sigmoidal population growth. Define your terms. Then, draw a plot showing an example, being sure to label your axes.arrow_forwardHow tradeoffs affect boundaries of niche? Explain in 10 sentences.arrow_forward
- During 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_forwardLife strategies of various populations can be represented by the symbols r and K. Which of the following is not a characteristic of an r-selected population? Its growth rate is unpredictable. The organisms have a short life span. It rarely exceeds the carrying capacity of its environment. The death rate of the population is very high.arrow_forwardA population is correctly defined as having which of the following characteristics? CHECK ALL THAT COULD APPLY A)individuals belonging to the same species B)possessing a constant and uniform density and dispersion C)inhabiting the same general areaarrow_forward
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