What is Life? A Guide to Biology with Physiology
3rd Edition
ISBN: 9781464157745
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 14, Problem 3SA
Summary Introduction
To analyze:
What is expected to happen to a population it a mating pair produces just one surviving offspring?
Introduction:
Population growth usually follows an exponential graph until the
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Eastern loggerhead shrike is a critically endangered species of bird in Canada. Its population has been declining since the 1960s, and it has been speculated that habitat loss, pesticide usage combined, and climate change have affected the shrike population size.
In 2004, there were approximately 70 loggerhead shrikes breeding in Canada. Over the next five years, 111 new shrikes were born, 57 died, and 15 left the area.
Calculate the change in the population of eastern loggerhead shrike between 2004 and 2009.
Express your answer rounded to the nearest whole number.
Answer
How might social dominance within a population regulate population growth? In your opinion, does it create a stronger or a weaker species? Explain.
Compare the survival and reproduction strategies of altricial species and precocial species. Although quite different,
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Chapter 14 Solutions
What is Life? A Guide to Biology with Physiology
Ch. 14 - Prob. 1SACh. 14 - Prob. 2SACh. 14 - Prob. 3SACh. 14 - Prob. 4SACh. 14 - Prob. 5SACh. 14 - Prob. 6SACh. 14 - Prob. 7SACh. 14 - Prob. 8SACh. 14 - Prob. 9SACh. 14 - Prob. 10SA
Ch. 14 - Prob. 11SACh. 14 - Prob. 12SACh. 14 - Prob. 13SACh. 14 - Prob. 14SACh. 14 - Prob. 15SACh. 14 - Prob. 1MCCh. 14 - Prob. 2MCCh. 14 - Prob. 3MCCh. 14 - Prob. 4MCCh. 14 - Prob. 5MCCh. 14 - Prob. 6MCCh. 14 - Prob. 7MCCh. 14 - Prob. 8MCCh. 14 - Prob. 9MCCh. 14 - Prob. 10MCCh. 14 - Prob. 11MCCh. 14 - Prob. 12MCCh. 14 - Prob. 13MCCh. 14 - Prob. 14MCCh. 14 - Prob. 15MC
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- This figure plots the breeding populations of fur seals as they recovered from uncontrolled hunting. Based on this graph, what is the approximate carrying capacity of the fur seal's breeding habitat? 10 a) about 1,000 seals b) about 5,000 seals 6. c) about 10,000 seals 1915 1925 1935 1945 Year Data from K. W. Kenyon et al., A population study of the Alaska fur-seal herd, Federal Government Series: Special Scientific Report-Wildlife 12 (1954). © 2018 Pearson Education, Inc. Breeding male fur seals (thousands)arrow_forwardWhat forces can cause populations to decline?arrow_forwardA population is solely comprised of 56 A2A2 individuals. 9 A1A1 individuals migrate in and contribute to the mating pool. What is the frequency of A1A2 individuals in the offspring? Answer to 2 decimal places.arrow_forward
- How can the growth of a population be slowed by its own numbers?arrow_forwardWrite a hypothesis to the question: How is a species’ population dynamics affected by thepresence of another species within? the same niche?arrow_forward1) A moose is an example of an organism that is large, lives relatively long, and has long generation types. Why do moose experience less population fluctuation than rabbits? 2) What is the primary driver of population cycles?arrow_forward
- Which of the following scenarios does NOT describe a population with a clumped distribution? A. group defense against predators B. even distribution of resources throughout the population’s habitat C. competition for mates D. seasonal migrations to follow food sourcesarrow_forwardA population is solely comprised of 152 A2A2 individuals. 7 A1A1 individuals migrate in and contribute to the mating pool. What is the frequency of A1A2 individuals in the offspring?arrow_forwardIf two populations of the same species of insects have been geographically isolated from each other for an extended period of time they will mostly exhibit?arrow_forward
- What is the estimated CARRYING CAPACITY of the population represented in the graph? * 600 ...... 500 роp 400 size 300 200 B. 100 TIME 385 О 290 575 О з30arrow_forwardIn most species containing individuals that are either male or female, the proportion of males and females changes over time. This graph shows shifting male female ratios in a wasp population over 10years. Based on the data shown in the graph, select the statements that describe what happens whenever one sex becomes rare or common Percent male or female 100% 80% 60%- 40% 20% 0 Proportion of male and female wasps in a population over a 10-year period 1 2 3 4 5 6 7 Year Males • Females 8 9 10 When one sex becomes either more rare or more common, parents produce an equal number of sons and daughters. The sex ratio returns to an equal number of males and females. When one sex becomes rare, the other sex becomes common due to random fluctuations in the production of male and female offspring. The fitness of the parents is not affected. When one sex becomes rare, parents producing that sex have higher fitness due to a higher probability of mating success in their offspring. The rare sex…arrow_forwardWhat effect does such a bottleneck have on the future population? Give a brief description of its effect on the size, ability to reproduce, and genetic diversity.arrow_forward
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