Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 53, Problem 21TYK
An ecological footprint is an estimate of
- a. the
carrying capacity of a nation. - b. the number of offspring an adult produces and the resulting demand on resources.
- c. the land and water area needed per person to meet the current demand on resources.
- d. how much energy is used to produce food for a vegetarian versus a meat eater.
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Human beings, like other K-selected species live close to carrying capacity and usually have logistic growth rates. However, population growth for humans has exhibited exponential growth for over the last 350 years (since the Industrial Revolution). Which of the following can explain this phenomenon?
Select one:
a. Humans have been able to achieve their biotic potential.
b. Humans have increased environmental resistance by limiting density-dependent factors
c. Humans have been able to continually increase their carrying capacity.
d. Humans have decreased environmental resistance by increasing density-independent limiting factors.
Which statement is a valid analysis about bison movement and the carrying capacity of Yellowstone National Park?
A.
The decrease in the northern herd's population is explained by its inability to migrate and the park's decreasing carrying capacity.
B.
The fact that bison only migrate in years of deep snow indicates that they have exceeded the park's carrying capacity.
C.
The carrying capacity for other animals found in Yellowstone has increased due to the bison's migration outside of the park.
D.
The movement of bison beyond park boundaries is not due to the bison population being too large for the park's carrying capacity.
Part B:
Which selection from the text provides evidence that directly supports this analysis?
A.
They move to lower elevation ranges during the winter months in response to snow accumulation and snowpack development.
B.
The model integrates data from several ecosystem-related variables,…
Which limiting factor would affect the carrying capacity for all species in the pictured ecosystem?
a) Number of trees for giraffes
b) Hunting behavior of lions
c) Birth rate of the giraffes
d) Amount of grassland
Chapter 53 Solutions
Study Guide for Campbell Biology
Ch. 53 - In a mark-recapture study, an ecologist traps,...Ch. 53 - Prob. 2IQCh. 53 - Define r. How does r relate to exponential growth?Ch. 53 - Label the following exponential and logistic...Ch. 53 - Prob. 5IQCh. 53 - a. List some density-dependent factors that may...Ch. 53 - What do the age structure pyramids in Figure 53.24...Ch. 53 - Create a concept map to organize your...Ch. 53 - What is the best collection of life history traits...Ch. 53 - In an area with a heterogeneous distribution of...
Ch. 53 - Which of the following statements about life...Ch. 53 - Prob. 3TYKCh. 53 - The middle of the S-shaped growth curve in the...Ch. 53 - In the logistic growth equation, which term...Ch. 53 - The term (K N)/K a. is the carrying capacity for...Ch. 53 - The carrying capacity for a population is...Ch. 53 - In order to maintain the largest sustainable fish...Ch. 53 - Immigration and emigration are likely to play a...Ch. 53 - Chimpanzee females typically first give birth at...Ch. 53 - Which of the following factors is not a...Ch. 53 - Consider a population experiencing negative...Ch. 53 - You have introduced a small number of individuals...Ch. 53 - Prob. 14TYKCh. 53 - Prob. 15TYKCh. 53 - In a population showing exponential growth, what...Ch. 53 - As a population approaches zero population growth,...Ch. 53 - For a population showing exponential growth, how...Ch. 53 - The human population is growing at such a fast...Ch. 53 - The demographic transition is the gradual shift...Ch. 53 - An ecological footprint is an estimate of a. the...
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- The carrying capacity (K) is the maximum population size that can be supported or sustained by a given environment. Which of the following statements about the carrying capacity is NOT true? Select one: a. We can think of K as some "average" value that a given environment can support. b. Environmental fluctuations cause the carrying capacity to fluctuate over time. c. Once a population reaches its carrying capacity, the size of the population remains constant. d. When a population overshoots K, individuals die due to lack of resources.arrow_forwardWhich of the following is not a way that humans have increased the carrying capacity of the environment? a. agriculture b. using large amounts of natural resources c. domestication of animals d. use of languagearrow_forward_______ is a density-independent factor that influences population growth. a. Resource competition c. Predation b. Infectious disease d. Harsh weatherarrow_forward
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- Based on the data, what is the estimated carrying capacity for the population and what factor may have led to a change in data at day three? A. The estimated carrying capacity is approximately 188 thousand. The population may have decreased during day three because of increased pressure from a limiting factor, such as unfavorable temperature. B. The estimated carrying capacity is approximately 188 thousand. The population may have decreased during day three because of decreased pressure from limiting factors, such as more food being available. C. The estimated carrying capacity is approximately 167 thousand. The population may have decreased during day three because of increased pressure from a limiting factor such as reduction of food available. D. The estimated carrying capacity is approximately 167 thousand. The population may have decreased during day three because of decreased pressure from a limiting factor such as reduction of predators eating the…arrow_forwardChoose a biological resource and address the following four questions using examples with that biological resource. a) Biomass production over time b) Carrying capacity and extinction threshold c) Management of the recruitment rate d) Describe two ways that climate change could impact the biological resource you selected for this question RESOURCE ECONOMICSarrow_forwardA population of deer suddenly decreases dramatically in number. This most likely occurred because ____. a. the was a gradual decrease in environmental resistance b. the population approached its carrying capacity c. population crashes are common and expected on a regular basis regardless of population size d. the number of resources increased steadily e. the population increased beyond its carrying capacityarrow_forward
- a) how would an increase in the number of producers affect the number and size of trophic levels in an ecosystem? b) how would an increase in the availability of a resource that was limiting the herbivore population size affect the number and size of trophic levels in an ecosystem?arrow_forwardThe Human Population and Its Impact: Population Ecology Compared to a developed country, which of the characteristics below is a DEVELOPING COUNTRY likely to exhibit? a. high total fertility rate b. slow population growth c. high percentage of elderlyarrow_forwardA particular species of butterfly is capable of surviving and reproducing both in open grasslands and in forested habitats. However, in the forested habitats this butterfly is heavily predated (eaten) by a forest bird species, so the beetle species avoids these areas and is generally found only in grasslands. Which of the following statements are true? Answer choices: A. The butterfly's realized niche includes both grasslands and forested habitats. B. The butterfly's fundamental niche includes only grasslands. C. The butterfly's realized niche includes only grasslands. D. The butterfly's fundamental niche includes both grasslands and forested habitats E. The butterfly and the forest bird species are in competition.arrow_forward
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