Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 55, Problem 3TYK
Summary Introduction
Introduction:
The International Union for the Conservation of Nature (IUCN) is an international network of non-government organizations (NGOs) and government agencies that monitors the status of the ecosystem and species. It organizes conferences about the ecological challenges and maintains the red list apart from sponsoring scientific research.
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The Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services published a report in 2019 that described several negative effects that humans have had
on biodiversity and ecosystem services. They highlighted and ranked five drivers of these negative effects. Which of the following has had the greatest overall impact on
biodiversity and ecosystem services?
A. Pollution
B. Direct exploitation of organisms
C. Invasive species
D. Climate change
E. Changes in land use and sea use
Determine if each statement is correct or incorrect:
1. Ecosystems with fewer numbers of species tend to be less stable.
2. Increasing numbers of species lead to more redundancy which is bad for the ecosystem.
3. More species mean more niche separation.
4. Species with a low resistance will also have low resilience.
5. Disturbances to ecosystems can be both naturally occurring and human caused.
6. Stresses to ecosystems are useful for removing weaker species and ensuring the strongest survive.
7. Bringing non-native species into an area to increase biodiversity makes the ecosystem more stable.
Inmost ecological communities, we find:a.more rare species than moderately common or very common ones.b.more very common species than moderately common or rare ones.c. norare species—apparently “rare” species are artifacts of incompletesampling.d.roughly equal proportions of rare, moderately common, and very commonspecies.e. more moderately common species than rare orvery common ones.
Chapter 55 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 55.1 - Prob. 1SBCh. 55.1 - Prob. 2SBCh. 55.1 - Prob. 3SBCh. 55.2 - Prob. 1SBCh. 55.2 - Prob. 2SBCh. 55.3 - How does biodiversity serve as a storehouse of...Ch. 55.3 - Prob. 2SBCh. 55.4 - Prob. 1SBCh. 55.4 - Prob. 2SBCh. 55.4 - Why are conservation biologists especially...
Ch. 55.5 - Prob. 1SBCh. 55.5 - Prob. 2SBCh. 55.5 - Prob. 3SBCh. 55.6 - Prob. 1SBCh. 55.6 - Prob. 2SBCh. 55.6 - Prob. 3SBCh. 55 - Prob. 1TYKCh. 55 - Prob. 2TYKCh. 55 - Prob. 3TYKCh. 55 - Prob. 4TYKCh. 55 - Prob. 5TYKCh. 55 - Prob. 6TYKCh. 55 - Prob. 7TYKCh. 55 - Prob. 8TYKCh. 55 - Prob. 9TYKCh. 55 - Prob. 10TYKCh. 55 - Prob. 11TYKCh. 55 - Prob. 12TYKCh. 55 - Prob. 13TYKCh. 55 - Devise a field study to determine whether the...Ch. 55 - Prob. 15TYKCh. 55 - Prob. 1ITD
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- 1)Which of the following are stages in the process of primary succession? Select all that apply. Pioneer species colonize the habitat and help build the soil. Shrubby species take root and overgrow the pioneer species. The initial habitat has no soil and lacks multicellular organisms. A disturbance removes the natural array of species but leaves the soil in place. After the buildup of organic matter and nutrients from generations of pioneer and shrubby species, tall trees establish in the habitat. 2)Which of the following is a species interaction that benefits one species and neither helps nor harms the other? Herbivory Commensalism Competition Mutualism 3)Which of the following is a process whereby two species compete for a limiting resource and one drives the other to local extinction? Character displacement Resource partitioning Competitive exclusion 4)Which of the…arrow_forward1) Which of the following defines the niche of a species? The role of a species in its community as well as the conditions it requires and the interactions it takes part in All populations of all species in some area The type of environment in which a species lives The number of species and their relative abundance within a community 2) Which of the following is an example of a biological factor that can affect community structure? Tropical regions support a high species diversity by receiving the most sunlight energy. The high temperatures of desert regions limit which species can live there. A plant species can live only in regions with a suitable level of rainfall. An insect herbivore inhibits the population growth of a tree species. 3)Which of the following prey defensive adaptations involves two or more prey species coming to resemble one another? Camouflage Startle displays…arrow_forwardThe table shown below represents the number of species growing in an area that was logged using clear-cutting 45 years ago in Temagami, Ontario. Data was collected periodically over 45 years. a.) describe the changes occurring in vegetation type and species diversity over the 45 years b.) what does the pattern of change tell you about what is happening in this area? c.) Explain how the data supports your conculsion.arrow_forward
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