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
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 53, Problem 14TYK
Summary Introduction
Introduction: The density-dependent factors increase with an increase in the population density. The death rate is said to be density-dependent if it rises with an increase in population density. In the same way, the birth rate is said to be density-dependent if it falls with increasing population.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A good number of snail population in the stagnant waters between rice paddies is growing under natural conditions with limited resources. As the snail population increases in size, how will population density affect its growth rate?
a. Population density will increase and the rate of population growth will eventually slow.
b. Population density will remain constant and population growth will increase.
c. Population density will become unstable and population growth will stop.
d. Population density will decrease and population growth will eventually increase.
A group of acarologists recorded 6,723 black-legged ticks (Ixodes scapularis) per acre in one patch of forest, and 329 black-legged ticks per acre in another patch of forest. What were the acarologists comparing?
a.
disperson
b.
carrying capacity
c.
density
d.
range
Which statement about zero population growth isoclines of two competing species is true?
A. Species coexistence requires that the two isoclines cross.
B. The crossing of the two isoclines is a sufficient condition for species coexistence.
C. If the species coexist, they will each do so at a higher density than either would if placed alone.
D. Strongly competing species can only coexist if the two species have very different carrying capacities.
E. Coexistence will occur if the two isoclines are parallel.
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...
Knowledge Booster
Learn more about
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
- What is the major difference between density-dependent and density-independent factors? A. Density-dependent factors are more harmful. B. Density-independent factors affect the population despite the density. C. Density-independent factors are more harmful.arrow_forwardIn a certain population of rabbits, 25 new rabbits are born and five move into the population from surrounding areas during a single year. However, 10 rabbits die, and five leave the population during the same time frame. What is the population change for that year? a. 30 b. No change c. 15 d. 25 e. 10arrow_forwardNewborn young would fall under which category of a population’s age structure? a. Para-reproductive stage b. Reproductive stage c. Pre-reproductive stage d. Non-reproductive stage e. Post-reproductive stagearrow_forward
- If a population of grackles has a birth rate of 0.67 chicks per bird per year and a death rate of 0.34 birds dying per bird per year how many grackles will there be a year later if the initial population is 100 Group of answer choices a. 34 b. 67 c. 134 d. 167 e. 133arrow_forwardWhich 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,…arrow_forwardEastern gray squirrels and Red squirrels are both found in Ohio and feed on a variety of nuts (e.g. acorns, walnuts). This would be an example of which type of competition? A. Resource competition B. Interference competition through territoriality C. Interference competition through allelopathy D.Interference competition through preemptionarrow_forward
- Which statement about population growth is true? A. Population growth models do not apply to humans. B. Population growth can be exponential for only as long as environmental conditions are favorable. C. Population growth can continue indefinitely. D. Population growth of field samples always has a λ of approximately 1.arrow_forwardWhich type of country has the greatest proportion of young individuals? a. economically developed b. economically underdeveloped c. countries with zero population growth d. countries in Europearrow_forwardRefer to the figure below to answer the question that follows. Plant Butterfly Rabbit Rat 49. In response to an increase in the eagle population, a. the rat population would increase. b. the butterfly population would increase. c. the rabbit population would increase. d. the lizard population would increase. the snake population would increase. e. - Lizard Snake Eagle 6arrow_forward
- The number of individuals that occur per unit area is calleda. populationb. population growth.c. carrying capacity.d. population densityarrow_forwardThis map shows the spread of the red fire ant after its introduction into the United States in Mobile, Alabama, in the 1930s: Which statement best explains the importance of interspecific relationships in the success of this invasive species?a. Ecosystems with more resources will support the red ant over the native ant b. Invaded communities with higher species richness will allow the red ant to thrive c. Communities with fewer feeding relationships are less resilient to change. d. Native ants have a higher relative abundance compared to the invasive red ant.arrow_forwardWhat is the best explanation for a decrease in a population of wolves in an area? A. The amount of food decreases. B. The amount of space increases. C. The amount of food increases. D. The amount of competition decreases.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College