Campbell Essential Biology (6th Edition) - standalone book
6th Edition
ISBN: 9780133917789
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece, Kelly A. Hogan
Publisher: PEARSON
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Chapter 19, Problem 4SQ
Summary Introduction
Introduction:
Density dependent limiting factors are based on the population size. It includes the intraspecific competition, predation,
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Chapter 19 Solutions
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- A gypsy moth population has overtaken a grove of oak trees. The gypsy moths eat the trees, causing the trees to die. What type of density-dependent factor would the gypsy moths be considered?arrow_forwardWhich 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 grasslandarrow_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_forward
- Which of the following is not true of a population of largepredators in a small reserve?a. The species may disappear from the reserve.b. The species will probably undergo a populationexplosion.c. The species will probably lose genetic diversity.d. The species may overeat its prey, causing a reduction inprey population.arrow_forwardHuman 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.arrow_forwardWhich type of population dispersion is characterized by a high population density? a uniform dispersion b random dispersion c isolated dispersion d clumped dispersionarrow_forward
- Asian carp are an invasive species of fish. When the Asian carp invade a river or lake, they overtake the food and space from the native fish. What type of density-dependent factor would this be considered?arrow_forwardAs a population’s size increases toward the ecosystem’s carrying capacity,a. environmental resistance increases.b. the rate of population growth slows.c. the death rate increases.d. All of the above are correct.arrow_forwardHow does the study of population ecology help us understand why some populations grow, some remain stable and others decline? The human population has grown as we have increased our global carrying capacity. In your opinion, can the global carrying capacity continue to increase/ Explain your answer? Why has human population growth, which increased exponentially for centuries, started to decline in the past few decades?arrow_forward
- Which one of the following is the number of individuals per unit area? A. distribution B. growth rate C. density D. geographic rangearrow_forward_______ is a density-independent factor that influences population growth. a. Resource competition c. Predation b. Infectious disease d. Harsh weatherarrow_forwardThe population size of a species capable of being supported by the environment is called its ________. a. limit b. carrying capacity c. biotic potential d. logistic growth patternarrow_forward
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