Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Textbook Question
Chapter 37, Problem 3WIO
Describe the difference between population density and distribution. Why aren’t organisms always distributed evenly throughout their habitat?
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Students have asked these similar questions
How does the study of population ecology help us understand why some populations grow, some remain stable, and others decline?
a.) Why has human population growth, which increased exponentially for centuries, started to decline in the past few decades?
b.) What is carrying capacity? Do you think carrying capacity applies to people as well as to other organisms? Why or why not?
What is a benefit of uniform dispersion?
decreased competition
increased resources
easier reproduction
increased competition
2)Which of the following best describes the difference between population size and population density?
a)Population size measures the abundance of an organism, whereas population density measures the distribution
b)Both variables measure abundance, but population density takes the into account the size of individuals, not just the number of individuals in the population
c)Population size measures abundance, but population density measures how rapidly the size changes
d)Population density measures the abundance of an organism, whereas population size measures the distribution
e)None of these descriptions are correct
Chapter 37 Solutions
Biology: Concepts and Investigations
Ch. 37.1 - Define population, community, and ecosystem.Ch. 37.1 - What is population density?Ch. 37.1 - Distinguish among the types of distribution in a...Ch. 37.1 - Prob. 4MCCh. 37.2 - Prob. 1MCCh. 37.2 - Prob. 2MCCh. 37.2 - Prob. 3MCCh. 37.2 - Prob. 4MCCh. 37.3 - Prob. 1MCCh. 37.3 - Prob. 2MC
Ch. 37.3 - Prob. 3MCCh. 37.3 - Prob. 4MCCh. 37.3 - Prob. 5MCCh. 37.4 - Prob. 1MCCh. 37.4 - Distinguish between opportunistic and equilibrium...Ch. 37.5 - Which parts of the world have the highest and...Ch. 37.5 - How does the demographic transition reflect...Ch. 37.5 - Prob. 3MCCh. 37.5 - What are some of the environmental consequences of...Ch. 37.6 - Prob. 1MCCh. 37.6 - Prob. 2MCCh. 37 - Population size increases when a. the sum of birth...Ch. 37 - Prob. 2MCQCh. 37 - Prob. 3MCQCh. 37 - Prob. 4MCQCh. 37 - Prob. 5MCQCh. 37 - Prob. 1WIOCh. 37 - Prob. 2WIOCh. 37 - Describe the difference between population density...Ch. 37 - Prob. 4WIOCh. 37 - Prob. 5WIOCh. 37 - Prob. 6WIOCh. 37 - Prob. 7WIOCh. 37 - Prob. 8WIOCh. 37 - Prob. 9WIOCh. 37 - Prob. 10WIOCh. 37 - Prob. 11WIOCh. 37 - A species with an opportunistic life history...Ch. 37 - 1. Review the Survey the Landscape figure in the...Ch. 37 - Prob. 2PITCh. 37 - 3. Add the following terms to this concept map:...
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- Which of the following questions fall under the category of population ecology? What factors influence the survival rate of a deer population? How does the introduction of a new predator affect the species in an ecosystem? How does sunlight affect the photosynthesis rate of a single tree? How does food availability affect the growth rate of a mouse population?arrow_forwardEcology and Biology: Shannon Diversity Index: Definition & Example The Shannon Diversity Index (sometimes called the Shannon-Wiener Index) is a way to measure the diversity of species in a community. Denoted as H, this index is calculated as: H = -Σpi * ln(pi) where: Σ: A Greek symbol that means “sum” ln: Natural log pi: The proportion of the entire community made up of species i The higher the value of H, the higher the diversity of species in a particular community. The lower the value of H, the lower the diversity. A value of H = 0 indicates a community that only has one species. The Shannon Equitability Index is a way to measure the evenness of species in a community. The term “evenness” simply refers to how similar the abundances of different species are in the community. Denoted as EH, this index is calculated as: EH = H / ln(S) where: H: The Shannon Diversity Index S: The total number of unique species What is the Shannon diversity index value for this community? What…arrow_forwardThe diagram below shows the feeding relationships between the populations of organisms L, M, N, O, P, Q, R and S in an area. M Using only the relationships between the organisms shown in the diagram, which of the populations would have the greatest effect on the amount of available energy if it were removed? population Q O population N O population S O population L P.arrow_forward
- Describe resource partitioning. Refer to partitioning in space and time. Refer to partitioning withing a species.arrow_forwardSpecies interactions determine an organism's fundamental niche. True Falsearrow_forwardList at least 5 abiotic factors and explain how they can affect the populations of different species in an ecosystem. NOTE: Please explain how that factor affect population (not just giving meaning)arrow_forward
- The population of rabbit was observed to rise and fall over a period of 8 to 10 years. The wolf population in the same area followed the same rate of increase and decrease as the rabbit population approximately two years afterward. What is the relationship between the wolf and the rabbit? Mutualism Symbiosis Predator-prey Competitionarrow_forwardWhich letter on the graph represents the EXCEEDING phase of the graph? * 600 500 роp 400 size 300 200 B. 100 TIME A D B.arrow_forwardWhich of the following is an example of an ecological population? a)All organisms living in a forest b)All mammals in a forest c)A family of deer within a forest d)All members of a single deer species in a forestarrow_forward
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