Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 19, Problem 2SQ
If members of a species produce a large number of offspring but provide minimal parental care, then a Type ____ survivorship curve is expected. In contrast, if members of a species produce few offspring and provide them with long standing care, then a Type ____ survivorship curve is expected.
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Students have asked these similar questions
True or False?
a) In Lotka-Volterra competition models, coexistence CANNOT occur if interspecific competition is stronger than intraspecific competition.
b)There are three types of survivorship curves that describe mortality rates at different age classes. A type I survivorship curve describes a population with low juvenile mortality, while a type III survivorship curve describes a population with high juvenile mortality.
To create a survivorship curve for the Andean condor:
Graph Title: Survivorship Curve for Andean Condor
Y-axis: Labeled "Survivorship" with indicators for "Low," "Medium," and "High" levels, ranging from 0 to 100% of the total initial cohort size.
X-axis: Labeled "Life Span" with stages "Young" (0-5 years), "Middle-aged" (6-37 years), and "Old" (38-75 years).
Key Features of the Curve:
Begins high, reflecting near-total survival from birth to maturity due to low mortality and protected upbringing.
remains flat and high through the middle age, indicating sustained low mortality.
shows a steep decline in old age, representing increased mortality as individuals reach the latter part of their lifespan.
In this figure, which survivorship curve best describes a species likely to exhibit high juvenile mortality and weak parental care?
Three general types of survivorship curves
Туре !
1000
100
Турe II
10
1
Type III
Old
0.1
Young
Age
O Type II
O Type III
O Type I
Number of survivors (Nx)
Chapter 19 Solutions
Campbell Essential Biology (7th Edition)
Ch. 19 - What two values would you need to know to figure...Ch. 19 - If members of a species produce a large number of...Ch. 19 - Prob. 3SQCh. 19 - Prob. 4SQCh. 19 - Prob. 5SQCh. 19 - Prob. 6SQCh. 19 - According to data on ecological footprints, a. the...Ch. 19 - The mussel secretes a combination of molecules...Ch. 19 - The lynx is one of the main predators of the...Ch. 19 - Life history traits, like anatomical features, are...
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