b) Suppose that we want to model the evolution of the population of a cer- tain type of organisms. Observations indicate that if the population drops below a survival level of 102 individuals, it goes extinct. Moreover, the population growth is limited: the available resources of space and food can sustain at most 10° individuals. We treat the population size P(t) as a continuous function of time. (i) Explain briefly how the following model incorporates the above ob- servations: dP — К(А - Р)(Р — В), k>0, dt where P(t) denotes the population size at time t and B < A. Using the informations given in the text of the question, determine the val- ues of the constants A and B. Can you also determine the value of [2] k?
b) Suppose that we want to model the evolution of the population of a cer- tain type of organisms. Observations indicate that if the population drops below a survival level of 102 individuals, it goes extinct. Moreover, the population growth is limited: the available resources of space and food can sustain at most 10° individuals. We treat the population size P(t) as a continuous function of time. (i) Explain briefly how the following model incorporates the above ob- servations: dP — К(А - Р)(Р — В), k>0, dt where P(t) denotes the population size at time t and B < A. Using the informations given in the text of the question, determine the val- ues of the constants A and B. Can you also determine the value of [2] k?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
Related questions
Question
![(b) Suppose that we want to model the evolution of the population of a cer-
tain type of organisms. Observations indicate that if the population drops
below a survival level of 10° individuals, it goes extinct. Moreover, the
population growth is limited: the available resources of space and food
can sustain at most 106 individuals. We treat the population size P(t) as
a continuous function of time.
(i) Explain briefly how the following model incorporates the above ob-
servations:
dP
— К(А- Р)(Р — В), k>0,
dt
where P(t) denotes the population size at time t and B < A. Using
the informations given in the text of the question, determine the val-
ues of the constants A and B. Can you also determine the value of
[2]
(ii) Suppose that A < P < B. At which value of the population is the
[2]
k?
growth fastest?
(c) Perform a linear stability analysis for the model below:
dP
P(1 – P)e-P*,P > 0.
dt
Find the equilibrium values and determine their stability.
[6]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1b379c3f-af09-4b4d-b202-fe506c36fa98%2F3c1724d1-5350-4822-84d1-256d687a6ca8%2F2v0y8s9_processed.png&w=3840&q=75)
Transcribed Image Text:(b) Suppose that we want to model the evolution of the population of a cer-
tain type of organisms. Observations indicate that if the population drops
below a survival level of 10° individuals, it goes extinct. Moreover, the
population growth is limited: the available resources of space and food
can sustain at most 106 individuals. We treat the population size P(t) as
a continuous function of time.
(i) Explain briefly how the following model incorporates the above ob-
servations:
dP
— К(А- Р)(Р — В), k>0,
dt
where P(t) denotes the population size at time t and B < A. Using
the informations given in the text of the question, determine the val-
ues of the constants A and B. Can you also determine the value of
[2]
(ii) Suppose that A < P < B. At which value of the population is the
[2]
k?
growth fastest?
(c) Perform a linear stability analysis for the model below:
dP
P(1 – P)e-P*,P > 0.
dt
Find the equilibrium values and determine their stability.
[6]
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
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.Recommended textbooks for you
![Human Anatomy & Physiology (11th Edition)](https://www.bartleby.com/isbn_cover_images/9780134580999/9780134580999_smallCoverImage.gif)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
![Biology 2e](https://www.bartleby.com/isbn_cover_images/9781947172517/9781947172517_coverImage_Textbooks.gif)
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
![Anatomy & Physiology](https://www.bartleby.com/isbn_cover_images/9781259398629/9781259398629_smallCoverImage.gif)
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
![Human Anatomy & Physiology (11th Edition)](https://www.bartleby.com/isbn_cover_images/9780134580999/9780134580999_smallCoverImage.gif)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
![Biology 2e](https://www.bartleby.com/isbn_cover_images/9781947172517/9781947172517_coverImage_Textbooks.gif)
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
![Anatomy & Physiology](https://www.bartleby.com/isbn_cover_images/9781259398629/9781259398629_smallCoverImage.gif)
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
![Molecular Biology of the Cell (Sixth Edition)](https://www.bartleby.com/isbn_cover_images/9780815344322/9780815344322_smallCoverImage.gif)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
![Laboratory Manual For Human Anatomy & Physiology](https://www.bartleby.com/isbn_cover_images/9781260159363/9781260159363_smallCoverImage.gif)
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
![Inquiry Into Life (16th Edition)](https://www.bartleby.com/isbn_cover_images/9781260231700/9781260231700_smallCoverImage.gif)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education