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 53.2, Problem 2C
Summary Introduction
To explain: The difference between the J-shaped
Introduction: Population change is caused by many factors. Any of these factors can lead to a change in population to some or great extent. Study of these factors and their effects on population is very important to understand a population at a given time instance.
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Students have asked these similar questions
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 resistance
What does s-shaped pattern of population growth represent?How is T-shaped pattern different from it and why?
What does the growth rate of 0.7 mean in relation to r=(birth-death)+(immigration-emigration)
What does the growth rate of 1 mean in relation to r=(birth-death)+(immigration-emigration)
What happens to the population when r is greater than 1?
What happens to the the population when r is equal to 1?
What happens to the population when r is less than 1?
Provide and explain the factors that lead to each type of distributions.
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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- 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.arrow_forwardWhat is the major difference between the geometric population growth equation and the exponential population growth equation and when would you use one over the other?arrow_forwardWith which population growth model is the Verhulst Pearl equation associated?arrow_forward
- What are three examples of density-dependent factors that affect population growth?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_forwardIn the logistic model of population growth, per capita growth rates are highest at __ densities and population growth rates are highest at ___ density (NOTE: assume ‘high’ refers to at or near K). A) low, intermediate B) low, low C) low, high D) None of the above are truearrow_forward
- There are 10 people in age class 0, 10 in age class 1 and 5 in age class 2. Annual survival rates are S0=0.7, S1=0.5 and S2=0. The fecundities are F0=0, F2=1 and F2=5. What is the asymptotic population growth rate and it is reached after approximately how many years of population growth?arrow_forwardIn a forest in India, there are 800 axis deer and 500 barking deer. The forest can support a maximum of 1,200 barking deer. The competition coefficient of barking deer on the axis deer is 0.25, and the competition coefficient of the reverse pair is 0.5. The intrinsic growth rate of barking deer is 2.0. Based on the Lotka-Volterra model, the population growth rate for barking deer is 416.67 Now, let's see if the two species can coexist in this forest. You are provided with some additional information: the carrying capacity of axis deer is 4,000. Determine if the two species can coexist.arrow_forwardin 2021, the growth rate of the human population was 1.03% per year with a thencurrent population of 7.875 billion people. Assuming a carrying capacity of 15 billionindividuals,when will the population reach 14.5 billion (i.e., nearly carrying capacity)?arrow_forward
- When a population is close to its carrying capacity the value of (1-N/K) is likely to be_____key words: ( close to 1, close to 0.5, close to zero) In a logistic growth curve, at the inflection point the value of (1-N/K) is likely to be_______ key words: ( close to 1, close to 0.5, close to zero)arrow_forwardIn the logistic growth equation the highest instantaneous population growth rate (dN/dt) is reached When the population is smallest, because then intraspecific competion and thereby resource limitation is weakest When the population is near K, because the largest population still growing has the highest growth rate, as it has the highest number of reproducing adults When the population is in the middle between zero and K (N = K/2) because then the trade-off between still having modest negative effects of intraspecific competition on growth rate but having a relatively high population size of individuals that could be reproducing is optimalarrow_forwardExplain how to estimate the per capita rate of increase in a population. How would you estimate intrinsic rate of increase?arrow_forward
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