Campbell Biology - Modified Mstingbiology
10th Edition
ISBN: 9780321935311
Author: Reece
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 54, Problem 12TYU
Summary Introduction
To propose: A hypothesis with the help of the principles of community ecology.
Concept introduction: The principle of “competitive exclusion” given by Gause states that “two species with same ecological niche cannot coexist”. In other words, the two species that utilize the same limited
Given data:
- Two identical plots with sagebrush plants and annual wildflowers.
- Fence.
- Kangaroo rats.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
An ecologist studying desert plants performed the following experiment. She staked out two identical plots that included a few sagebrush plants and numerous small annual wildflowers. She found the same five wildflower species in similar numbers in both plots. Then she enclosed one of the plots with a fence to keep out kangaroo rats, the most common herbivores in the area. After two years, four species of wildflowers were no longer present in the fenced plot, but one wildflower species had increased dramatically. The unfenced control plot had not changed significantly in species composition. Using the concepts discussed in the chapter, what do you think happened?
plant in ________are adapted to grazing and periodic fires
1- desert
2- tropical rainforest
3- grassland
4- boreal forest
A mountainous volcano has erupted and destroyed all evidence of the previous ecosystem. The lava has cooled, leaving no trace of previous inhabitants. Years go by with no apparent change in the affected region. What evidence would first signal the succession of the community?
A. Appearance of pioneer species
B. Appearance of flowering plants in springtime
C. Splitting of lava from regrowth of trees
D. Saturation of lava with moisture for plant growth
Chapter 54 Solutions
Campbell Biology - Modified Mstingbiology
Ch. 54.1 - Explain how competition, predation, and mutualism...Ch. 54.1 - According to the principle of competitive...Ch. 54.1 - Prob. 3CCCh. 54.2 - What two components contribute to species...Ch. 54.2 - How is a food chain different from a food web?Ch. 54.2 - Prob. 3CCCh. 54.3 - Why do high and low levels of disturbance usually...Ch. 54.3 - Prob. 2CCCh. 54.3 - WHAT IF? Most prairies experience regular fires,...Ch. 54.4 - Describe two hypotheses that explain why species...
Ch. 54.4 - Prob. 2CCCh. 54.4 - WHAT IF? Based on MacArthur and Wilson's island...Ch. 54.5 - What are pathogens?Ch. 54.5 - WHAT IF? Rabies, a viral disease in mammals, is...Ch. 54 - Prob. 54.1CRCh. 54 - Based on indexes such as Shannon diversity, is a...Ch. 54 - Is the disturbance pictured in figure 54.25 more...Ch. 54 - How have periods of glaciation influenced...Ch. 54 - Prob. 54.5CRCh. 54 - Prob. 1TYUCh. 54 - The principle of competitive exclusion states that...Ch. 54 - Based on the intermediate disturbance hypothesis,...Ch. 54 - According to the island equilibrium model, species...Ch. 54 - Prob. 5TYUCh. 54 - Prob. 6TYUCh. 54 - Prob. 7TYUCh. 54 - The most plausible hypothesis to explain why...Ch. 54 - Community 1 contains 100 individuals distributed...Ch. 54 - Prob. 10TYUCh. 54 - EVOLUTION CONNECTION Explain why adaptations of...Ch. 54 - Prob. 12TYUCh. 54 - WRITE ABOUT A THEME: INTERACTIONS In Batesian...Ch. 54 - Prob. 14TYU
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.Similar questions
- What does this graph tell us about plant species diversity and latitude? Closer to the poles, diversity decreases. Species diversity does not vary with latitude. Closer to the poles, diversity increases. Nothing.arrow_forwardThe increased biodiversity of the Sonoran Desert is a product of the presence of both High RGR and High WUE species. What is the reason we find both types of plants and not just one or the other? Question options: a. Different heights allow species to grow fast or slow in different light environments. b. The plants are always found growing together suggesting they have a mutualistic interaction. c. Different species take advantage of different kinds of rain storms that happen irregularly. d. One type of species facilitates the growth of the other by improving the soil conditions.arrow_forwardPlants that colonize disturbed areas (colonizing species aka weeds) have to disperse their offspring widely so that some seeds will land in appropriate habitat. Many seeds will not land in appropriate habitat. What type of life history do you think weeds typically have? Group of answer choices many, small seeds many, large seeds few, large seeds few, small seedsarrow_forward
- The Lazy River Environmental Group is a group of fishermen and environmentalists that have worked to assess and clean up the pollution from an old factory on the Lazy River. One early study revealed that species on the river had absorbed pollutants from the water. Select the Pollutant Levels in Tissue, by Species dataset and follow the interactive to graph the data. Which statement(s) correctly describe the graph? (Check all that apply.) The two species with highest levels are both fish.The two species with highest levels are both fish. Turtles had a pollutant level about three times that of clams.Turtles had a pollutant level about three times that of clams. No invertebrate (excludes fish and turtles) had a level above 0.05 ppm.No invertebrate (excludes fish and turtles) had a level above 0.05 ppm. The fish species with the highest level was about three times the value of the fish species with the lowest level.The fish species with the highest level was about three…arrow_forwardPut the following items in order of succession. Farmland is abandoned. Dense shrubs appear. Slower growing trees enter the area. Small, fast-growing trees appear. Shade-tolerant trees take over. Sun-tolerant weeds and herbs appear.arrow_forwardThe illustration below shows an ecosystem that has undergone secondary succession . What pioneer species would have been observed in this ecosystem? F. grasses and wildflowers G. lichens and mosses H. shrubs and saplings J. vultures and coyotesarrow_forward
- In ecological succession plants change the physical environment allowing new species to colonize. Which type of control of community structure is inconsistent with this idea? Group of answer choices top down control availability of light and moisture bottom up controlarrow_forwardRainforests have over ______of all species of plants and animals on earth. A. a quarter B. Half C. Three-quarters C. 100%arrow_forwardRefer to Thought Lab 3.2 on page 99 of the textbook to complete the questions What did the results of the study show? What techniques did the researchers use in the study to increase the accuracy of their study? How do periodic fires result in more diversity in a forest?arrow_forward
- With regard to saving species, Also Leopold wrote 'To keep every cog and wheel is the first precaution to intelligent tinkering.' Explain how this statement relates to the material in this chapter.arrow_forwardA forest fire has destroyed all adult trees in an area. Pine seeds buried in the bark of the adults survived the blaze, fall to the ground, and germinate. As adult trees, they cast deep shade onto the soil. Maple seeds also survived the fire, but are unable to germinate until the pine trees are adult sized. Once they do germinate, the maple trees grow rapidly and replace the pine in the canopy. The most likely mechanism of succession describing the pine replacement is a) Competition b) Facilitation c) Tolerance d) Mutualismarrow_forwardFigure 44.12 Which of the following statements about biomes is false? Chaparral is dominated by shrubs. Savannas and temperate grasslands are dominated by grasses. Boreal forests are dominated by deciduous trees. Lichens are common in the arctic tundra.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Biology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Biology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781337408332Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781305073951
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781337408332
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Evidence for Evolution - Biogeography; Author: Viced Rhino;https://www.youtube.com/watch?v=304wIG6H11E;License: Standard YouTube License, CC-BY