Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 27, Problem 4RQ
Summary Introduction
To explain:
The term environmental resistance and also distinguish between the density independent and density dependent forms of environmental resistance. And also describe three example of each.
Introduction:
Growth curve represents the population growth with each period of time. Growth curve can be demonstrated by two types of growth curve: J shaped growth curves and sigmoid growth curve. The J shaped growth curves represent the unrestricted or exponential population growth while sigmoid growth curve represents the slow or restricted growth of population. The optimum
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Chapter 27 Solutions
Biology
Ch. 27.1 - Prob. 1CSCCh. 27.1 - Prob. 1HYEWCh. 27.1 - The Return of the Elephant Seals Female elephant...Ch. 27.1 - Prob. 1CYLCh. 27.1 - describe how the growth rate interacts with...Ch. 27.1 - Prob. 3CYLCh. 27.2 - What factors might make these population data...Ch. 27.2 - Prob. 2TCCh. 27.2 - What benefits does mass emigration give to animals...Ch. 27.2 - Prob. 1CSC
Ch. 27.2 - Prob. 1CYLCh. 27.2 - Prob. 2CYLCh. 27.2 - Prob. 3CYLCh. 27.3 - Prob. 1CYLCh. 27.3 - Prob. 2CYLCh. 27.3 - Prob. 3CYLCh. 27.4 - Prob. 1CYLCh. 27.4 - Prob. 1CTCh. 27.5 - Prob. 1TCCh. 27.5 - Prob. 2TCCh. 27.5 - Prob. 3TCCh. 27.5 - describe the advances that have allowed...Ch. 27.5 - explain why rapid population growth continues...Ch. 27.5 - Prob. 3CYLCh. 27.5 - Prob. 4CYLCh. 27 - Prob. 1MCCh. 27 - Prob. 2MCCh. 27 - Prob. 3MCCh. 27 - Prob. 4MCCh. 27 - Prob. 5MCCh. 27 - Prob. 1FIBCh. 27 - The type of growth that occurs in a population...Ch. 27 - Prob. 3FIBCh. 27 - The type of spatial distribution likely to occur...Ch. 27 - Prob. 5FIBCh. 27 - Prob. 1RQCh. 27 - Prob. 2RQCh. 27 - Draw, name, and describe the properties of a...Ch. 27 - Prob. 4RQCh. 27 - What is logistic population growth? What is K?Ch. 27 - Prob. 6RQCh. 27 - Distinguish between populations showing concave...Ch. 27 - Prob. 8RQCh. 27 - Prob. 9RQCh. 27 - Prob. 1ACCh. 27 - Prob. 2AC
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- Give an example of how density-dependent and density-independent factors might interact.arrow_forwardWhat are the economic, environmental and/or biological implications of the following scenarios? Give specific examples. a. Absence of government agencies responsible for conservation and sustainabilityarrow_forwardusing cause and effect, outline one possible process for implementing a plan for environmental sustainability.arrow_forward
- What is the relationship between limiting factors competition and adaptionsarrow_forwardFind examples of: One density-independent factor that can influence an organism's intrinsic growth rate. One density-dependent factor based on population regulation and one factor based on the Allee effect that can influence an organism's intrinsic growth rate.arrow_forwardUsing the information in the table above, evaluate the relative risk for poor outside air quality for the following pairs of locations in terms of the pollutant sources. Which one do you think would have better air quality? Why? i) small village vs. large city ii) cabin in a forest with a wood-burning stove vs. farmhouse in the middle of the prairiesarrow_forward
- Why are the four main topics of ecological risk analysis important to risk assessment?arrow_forwardExplain the premise of the Lotka-Volterra Competition Model and what it tells us about the competitive exclusion principlearrow_forwardBeige and black rabbits were introduced into two meadows. One meadow predominantly consists of volcanic soil and the other predominantly consists of clay soil. Each rabbit was marked with a dot of blue paint and the pad of his foot. The number of rabbits released and recaptured one month later are shown in the table below. Assume the number of rabbits recaptured is a direct reflection of the number of rabbits surviving. Using the data below, what conclusions can you make regarding the color of rabbits and their survival in different soil types? VOLCANIC SOIL # released #recaptures % precentage beige rabbits 137 18 13.1% black rabbits 447 123 27.5% CLAY SOIL # released # recaptures % precentage beige rabbits 393 54 13.1% black rabbits 406 19 4.7%arrow_forward
- Explain what carrying capacity means and give the similarities/differences for exponential growth and logistic growth along with the factors that might affect them. will upvote if correctarrow_forwardRead each situation in the chart below. Then, state if it is a density-independent limiting factor or a density-dependent limiting factor. Then, state the specific limiting factor that is occurring. The first one is done for you as an example. SITUATION Dependent - Independent or Density-Dependent Limiting Factor Mrs. Engelbrecht has 32 students assigned to her Biology Class, but she only has room for 28. Because the room is crowded, the extra 4 students leave room to go to Guidance and have their schedules changed. Density- Dependent Emigration Northern pike (it’s a fish) feed on another fish, the yellow perch. An increase in the yellow perch population causes an increase in the northern pike population. Density- Dependent The BP oil spill in the Gulf of Mexico has harmed many aquatic organisms that live in the Gulf region. Density- Independent A new strain of influenza (the flu) breaks out in New York City Density- Dependent A…arrow_forwardA conceptual model representing the role, interaction, reaction, and density of essential ecosystem components is shown below. Examine the model and the relationships between the major players (i.e., predator, prey, producer). The structure's most important role is played by these major players. It's also worth noting that nutrition has been included in the model. This is the abiotic component that has a direct or indirect impact on the interaction. Question: Based on this scenario, what is the most significant role of sea otters in the marine community? Why it’s important?arrow_forward
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