Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 43, Problem 5TY
Summary Introduction
Introduction:
Populations are made of all individuals belonging to the similar species who live together at the similar time.
The mean number of progenies that a woman produces during her life span is called thenet reproductive rate
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Students have asked these similar questions
The discrete logistic function (the one you can solve with your calculator) has a time lag built in = one
generation. What would a greater time lag do to the outcome?
increase the chances of population exceeding K
decrease the chances of population exceeding K
slow down population growth by decreasing r
increase population growth by increasing r
it would have little/no effect under all circumstances
1 Of the three models of population growth, which is the most accurate depiction of a population in a natural environment?
exponential model
linear model
boom-and-bust
logistic model
The per-capita birth rate of individuals in a population is 0.8, and the per-capita death rate of individuals in the same population is 0.6. Given these rates, what is happening to the size of the population?
constant
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increasing
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random
Chapter 43 Solutions
Principles of Biology
Ch. 43.1 - If we mark 110 Rocky Mountain goats andrecapture...Ch. 43.1 - Prob. 1TYKCh. 43.2 - Prob. 1BCCh. 43.2 - Prob. 1TYKCh. 43.2 - Prob. 2TYKCh. 43.2 - Prob. 3TYKCh. 43.3 - What is the population growth per unit of time...Ch. 43.3 - Prob. 1TYKCh. 43.3 - Prob. 2TYKCh. 43.4 - Prob. 1CC
Ch. 43.4 - Prob. 1BCCh. 43.4 - Prob. 2CCCh. 43.4 - Prob. 3CCCh. 43.4 - Which types of factors tend to stabilize...Ch. 43.4 - A species interaction in which one species...Ch. 43.4 - According to the competitive exclusion hypothesis....Ch. 43.4 - Prob. 3TYKCh. 43 - A student decides to conduct a mark-recapture...Ch. 43 - Prob. 2TYCh. 43 - Prob. 3TYCh. 43 - Prob. 4TYCh. 43 - Prob. 5TYCh. 43 - Prob. 6TYCh. 43 - Prob. 7TYCh. 43 - Prob. 8TYCh. 43 - Prob. 9TYCh. 43 - Prob. 10TYCh. 43 - Prob. 1CCQCh. 43 - Prob. 2CCQCh. 43 - A principle of biology is that biology affects our...Ch. 43 - Prob. 1CBQCh. 43 - Prob. 2CBQ
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- Figure 19.2 As this graph shows, population density typically decreases with increasing body size. Why do you think this is the case?arrow_forwardthe doubling time formula to estimate how long would it take a population of 5 billion to double in size given an annual growth rate of 1.5%.arrow_forwardSince K = 0.5, the population we are studying is experiencing ________ growth due to density _______ factors. exponential; dependent exponential; independent logistic; dependent logistic; independentarrow_forward
- Just Explain the difference between density-independent and a density-dependent processes influencing population growth. Each of the example show up.arrow_forwardIf a population has a constant r = 0.3 Group of answer choices the per capita rate of population increase continues to accelerate as the population grows the time necessary for population size to double gets shorter as time goes by since population size is increasing exponentially the absolute increase (change in population size per unit time) is also constant the time necessary for population size to double is also constantarrow_forwardEvolution, Biodiversity and Population Ecology How Natural selection shapes organisms? What does Population ecology study? Which factors limit population growth?arrow_forward
- Based on the graph, did the zebra population growth rate (dN/dt) differ in the years 1985 and 2003? Why or why not? (Hint: dN/dt is equal to the slope of the curve showing population size, N, over time, t.)arrow_forwardExponential population growth occurs when N=K. True Falsearrow_forwardThinking Critically In what ways can members of the same population compete with one another? How might members of different populations compete? Contrast the results of these kinds of competition.arrow_forward
- The carrying capacity of the environment with respect to any population is the maximum number of individuals that can be supported. What do you think are the carrying capacities for these species’ populations? Draw horizontal lines on the graph indicating this for each species’ population. Adjust your figure legend.arrow_forward1.In wildlife management, population numbers must be sustainable in that populations cannot exceed the environment’s ability to support them. Using the ∆N formula, consider the following: Coyotes are members of the Canis family, or dog family, that wanders natural or agricultural grasslands and temperate forest in search of rodents and small prey. Occasionally they will form packs to bring down a larger animal – perhaps a young, sick, or old deer. In this scenario, assume population numbers of coyotes have increased dramatically. a.Using your knowledge of the ∆N formula, provide four possible causes for this dramatic increase in population. b.Assume you are a wildlife manager and that the high coyote population is resulting in more human/coyote interactions. Steps need to be taken to correct the imbalance in coyotes. Provide two ecologically sound solutions to the problem.arrow_forwardIn a population with high resource value relative to cost (V =2*C), which strategy is considered a pure ESS? Group of answer choices Dove Hawk Both the hawk and the dove can be a pure ESS in the Hawk-Dove game Neitherarrow_forward
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