Campbell Biology, Books a la Carte Edition (10th Edition)
10th Edition
ISBN: 9780321974587
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Textbook Question
Chapter 53, Problem 15TYU
WRITE ABOUT A THEME: INTERACTIONS In a short essay (100-150 words), identify the factor or factors in Figure 53.18 that you think may ultimately be most important for density- dependent population regulation in humans, and explain your reasoning.
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Describe at least three to five other limiting factors (other than the number of predators or prey) that can affect population sizes. What effect does each of these limiting factors have on the populations?
Use the information provided:
population experiences density-dependent growth
K or carrying capacity is 180
r = 0.032 individual/month
1. Calculate how many bugs are added to the population next month when population size is 65?
2. Now keeping the condition of density dependent growth, let's change some numbers: K=270 and r=0.13. If the current population is 125 bugs, how large will the population be in 12 months?
Population ecology:
Do environmental stochasticity and demographic stochasticity impact small populations or large populations more?
Please explain why.
Chapter 53 Solutions
Campbell Biology, Books a la Carte Edition (10th Edition)
Ch. 53.1 - DRAW IT Each female of a particular fish species...Ch. 53.1 - Prob. 2CCCh. 53.1 - Prob. 3CCCh. 53.2 - Explain why a constant per capita rate of growth...Ch. 53.2 - Prob. 2CCCh. 53.2 - Prob. 3CCCh. 53.3 - Explain why a population that fits the logistic...Ch. 53.3 - WHAT IF? Given the latitudinal differences in...Ch. 53.3 - Prob. 3CCCh. 53.4 - Prob. 1CC
Ch. 53.4 - Prob. 2CCCh. 53.4 - Prob. 3CCCh. 53.5 - Prob. 1CCCh. 53.5 - WHAT IF? Suppose you were studying a species that...Ch. 53.5 - Prob. 3CCCh. 53.6 - How does a human population's age structure affect...Ch. 53.6 - Prob. 2CCCh. 53.6 - Prob. 3CCCh. 53 - Gray whales (Eschrichtius robustus) gather each...Ch. 53 - Suppose one population has an r that is twice as...Ch. 53 - Prob. 53.3CRCh. 53 - Prob. 53.4CRCh. 53 - Density-dependent factors regulate population...Ch. 53 - The human population is no longer growing...Ch. 53 - Population ecologists follow the fate of same-age...Ch. 53 - A population's carrying capacity (A) may change as...Ch. 53 - Scientific study of the population cycles of the...Ch. 53 - Analyzing ecological footprints reveals that (A)...Ch. 53 - Prob. 5TYUCh. 53 - The observation that members of a population are...Ch. 53 - According to the logistic growth equation...Ch. 53 - Prob. 8TYUCh. 53 - During exponential growth, a population always (A)...Ch. 53 - Which of the following statements about human...Ch. 53 - Prob. 11TYUCh. 53 - Prob. 12TYUCh. 53 - Prob. 13TYUCh. 53 - Prob. 14TYUCh. 53 - WRITE ABOUT A THEME: INTERACTIONS In a short essay...Ch. 53 - SYNTHESIZE YOUR KNOWLEDGE Locusts (grasshoppers in...
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- Answer each question in a clear and organized manner (maximum of 10 sentences). 1. Describe population growth and population regulation. Give an example of how density-dependent and density-independent factors might interact. 2. Discuss the levels of organization of living systems.arrow_forwardThe eastern screech owl (Megascops asio) roosts in tree cavities. As long as there are enough tree cavities available for all the owls in the population, the number of tree cavities has no effect on per capita birth or death rates. If there are more owls than the number of tree cavities, the per capita death rate increases with increased population size (because of increased rates of predation or death by exposure). How does this scenario differ from the traditional idea of density-dependent population regulation, as described by Nicholson (1956) or Turchin (1995)? Does it make more or less sense, and why?arrow_forwardConcerning population size and population density, explain one way each of the terms differ from each other in relation to their a. importance in predicting competition in a population; b. importance in predicting resource use in an area; and c. relationship with each other. (17.2)arrow_forward
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