Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 53.1, Problem 3CC
Summary Introduction
To determine: The pattern of dispersion that is likely to occur in case of the male stickleback fishes, when a male stickleback fish had attacked the other males for invading his nesting territory.
Concept introduction: Dispersion is defined as the spacing pattern within the individuals in a particular population boundary. Within the geographical range of a population, there can be differences in the local densities that would create contrasting dispersion patterns. Thus, differences in the local densities are the essential characters to study.
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Q12. In some parts of Michigan, black bears are found near streams in the late summer and early fall and feed
upon the salmon that are swimming up the rivers. If a biologists saw 2 female bears working together to trap
and catch salmon, what are two hypotheses that would explain their behavior. Remember, it is NOT for the
good of the species.
Explanation 1 and how it would increase fitness:
Explanation 2 and how it would increase fitness:
Explain why dispersal behaviour shown amongst majority of species improves reproductive success.
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Multiple choice
Fewer than 3% of animals engage in direct care of their offspring. When might the benefits of parental care outweigh the costs?
Choose the correct option and Explain why you choose that answer.
a) All of the options.
b) Species that feed on resources with high foraging effort (e.g., smaller insect prey versus larger insect prey).
c) Species with highly immature young, for instance those with large brains that have long learning periods.
d) Species with limited breeding opportunities.
Chapter 53 Solutions
Campbell Biology
Ch. 53.1 - DRAW IT Each female of a particular fish species...Ch. 53.1 - Prob. 2CCCh. 53.1 - Prob. 3CCCh. 53.2 - Explain why a constant per capita rate of growth...Ch. 53.2 - Prob. 2CCCh. 53.2 - Prob. 3CCCh. 53.3 - Explain why a population that fits the logistic...Ch. 53.3 - WHAT IF? Given the latitudinal differences in...Ch. 53.3 - Prob. 3CCCh. 53.4 - Identify three key life history traits, and give...
Ch. 53.4 - Prob. 2CCCh. 53.4 - Prob. 3CCCh. 53.5 - Prob. 1CCCh. 53.5 - Prob. 2CCCh. 53.5 - WHAT IF? Suppose you were studying a species that...Ch. 53.5 - Prob. 4CCCh. 53.6 - How does a human population's age structure affect...Ch. 53.6 - How have the rate and number of people added to...Ch. 53.6 - WHAT IF? Type "personal ecological footprint...Ch. 53 - Gray whales (Eschrichtius robustus) gather each...Ch. 53 - Suppose one population has an r that is twice as...Ch. 53 - Prob. 53.3CRCh. 53 - Prob. 53.4CRCh. 53 - Density-dependent factors regulate population...Ch. 53 - The human population is no longer growing...Ch. 53 - Population ecologists follow the fate of same-age...Ch. 53 - A population's carrying capacity (A) may change as...Ch. 53 - Scientific study of the population cycles of the...Ch. 53 - Analyzing ecological footprints reveals that (A)...Ch. 53 - Based on current growth rates, Earth's human...Ch. 53 - The observation that members of a population are...Ch. 53 - According to the logistic growth equation...Ch. 53 - During exponential growth, a population always (A)...Ch. 53 - Prob. 9TYUCh. 53 - Prob. 10TYUCh. 53 - EVOLUTION CONNECTION Contrast the selective...Ch. 53 - Prob. 12TYUCh. 53 - Prob. 13TYUCh. 53 - WRITE ABOUT A THEME: INTERACTIONS In a short essay...Ch. 53 - SYNTHESIZE YOUR KNOWLEDGE Locusts (grasshoppers in...
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