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, Problem 4TYU
When r is a positive number, the
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In a food web, two different species can directly affect each other’s abundance via _ competition or may in fact have their abundance indirectly regulated by a higher trophic level, a phenomenon called ____ competition.
a) Intraspecific, apparent
b) Interspecific, apparent
c) Intraspecific, apparent
d) Apparent, interspecific
Both hawks and owls feed on small mammals to sustain their respective populations without causing competitive exclusion. How can this work when both species live in the same geographic area?
Inplants, “self-thinning” refers to reduction in:a.the biomass of an individual in response to competition.b.the total biomass of a population in response to competition.c.both population density and population biomass in response tocompetition.d.population density in response to competition, as population biomassincreases.e.population density due to grazing by herbivores.
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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- The 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_forwardPredation, disease, and competition are examples of _______________ factors. (a) density-dependent (b) density-independent (c) survivorship (d) dispersal (e) semelparousarrow_forwardDraw on one graph, with N2 on the y-axis and N1 on the x-axis, the isoclines for the twocompetitors with the carrying capacities and competition coefficients listed below. Will thesespecies coexist? If not, which species will win? Competitor 1 Competitor 2 K1 = 200, α12 = 0.4 K2 = 400, α21 =1arrow_forward
- What happens to the prey species when the predator species population increases? Why?What happens to the predator species when the prey species population increases? Why?arrow_forwardThe lotka-volterra equation that describes rate of change in the predator population doesn't include intrisic rate for predators. How does it accomodate for growth in predators if the rate is missing?arrow_forwardCapturing and relocating is stressful for animals. In the zebra example, what are the stages of reintroduction, and what purpose does each step serve? Why is the buffalo considered a success story for reintroduction? (And -- based on what you know from lecture, what type of population growth pattern does this indicate?) Park managers use the term “adaptive management”; what do you think this means, and what are two benefits of this approach to managing ecosystems?arrow_forward
- nonmigratory wildebeest populations are limited, mainly by factors that are a.) density independent, top down b.) density independent, bottom up. c.) density dependent, top down d.) density dependent, bottom uparrow_forwardHow does community size influence the number of species it can support? What are uses of Rank-abundance curves? How does component species interactions restrict or enhance the presence of other species? What is a keystone specie? Give some examples. Difference between food web and food chainarrow_forwardA 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? predation disease and parasites competition physiological changearrow_forward
- Question 1 Neutral models emphasize dispersal and chance. Question 1 options: A) True B) False Question 2 Environmental filtering reduces competition. Question 2 options: A) True B) False Question 3 If competition structures a community, then ____________. Question 3 options: A) niches should be widely separated in niche space. B) niche space should be neutral. C) the environment does not filter species. D) there is no niche overlap among species.arrow_forwardFor a conservation biologist interested in sustaining populations of the organisms below, why would it be helpful to take a landscape ecology perspective? Explain your answer in each case. • A forest-breeding warbler that suffers poor nesting success in small, fragmented forest patches • A bighorn sheep that must move seasonally between mountains and lowlands • A toad that lives in upland areas but travels crosscountry to breed in localized pools each springarrow_forwardHyena carrying capacity in Mkomazi National Park is 500 (in the absence of competitors). Wild Dog carrying capacity in that park is 700 (in the absence of competitors). The addition of 1 wild dog to the park is equivalent to adding 2.5 hyena. The addition of 1 hyena to the park is equivalent to adding 0.4 wild dogs. Which of these species is the better competitor? Justify your answer quantitatively and illustrate your argument using an appropriate graph.arrow_forward
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