Textbook Question
What is a biodiversity “hotspot”?
a. an area where an all-taxon survey is under way
b. a habitat with high NPP
c. an area with high species richness and high threat to those species
Ch. 54 - Biodiversity and Conservation Ecology
Freeman8th EditionBiological ScienceISBN: 9780138276263
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Table of contents
- Ch. 1 - Biology: The Study of Life13
- Ch. 2 - Water and Carbon: The Chemical Basis of Life14
- Ch.3 - Protein Structure and Function10
- Ch.4 - Nucleic Acids and the RNA World10
- Ch. 5 - An Introduction to Carbohydrates10
- Ch. 6 - Lipids, Membranes, and the First Cells11
- Ch. 7 - Inside the Cell10
- Ch. 8 - Energy and Enzymes: An Introduction to Metabolism10
- Ch. 9 - Cellular Respiration and Fermentation11
- Ch. 10 - Photosynthesis12
- Ch. 11 - Cell-Cell Interactions12
- Ch. 12 - The Cell Cycle8
- Ch. 13 - Meiosis12
- Ch. 14 - Mendel and the Gene23
- Ch. 15 - DNA and the Gene: Synthesis and Repair15
- Ch. 16 - How Genes Work16
- Ch. 17 - Transcription, RNA Processing, and Translation16
- Ch. 18 - Control of Gene Expression in Bacteria16
- Ch. 19 - Control of Gene Expression in Eukaryotes12
- Ch. 20 - The Molecular Revolution: Biotechnology, Genomics, and New Frontiers15
- Ch. 21 - Genes, Development, and Evolution12
- Ch. 22 - Evolution by Natural Selection16
- Ch. 23 - Evolutionary Processes13
- Ch. 24 - Speciation15
- Ch. 25 - Phylogenies and the History of Life13
- Ch. 26 - Bacteria and Archaea15
- Ch. 27 - Diversification of Eukaryotes16
- Ch. 28 - Green Algae and Land Plants16
- Ch. 29 - Fungi18
- Ch. 30 - An Introduction to Animals9
- Ch. 31 - Protostome Animals15
- Ch. 32 - Deuterostome Animals17
- Ch. 33 - Viruses16
- Ch. 34 - Plant Form and Function16
- Ch. 35 - Water and Sugar Transport in Plants16
- Ch. 36 - Plant Nutrition13
- Ch. 37 - Plant Sensory Systems, Signals, and Responses16
- Ch. 38 - Flowering Plant Reproduction and Development16
- Ch. 39 - Animal Form and Function17
- Ch. 40 - Water and Electrolyte Balance in Animals16
- Ch. 41 - Animal Nutrition16
- Ch. 42 - Gas Exchange and Circulation16
- Ch. 43 - Animal Nervous Systems16
- Ch. 44 - Animal Sensory Systems16
- Ch. 45 - Animal Movement11
- Ch. 46 - Chemical Signals in Animals16
- Ch. 47 - Animal Reproduction and Development16
- Ch. 48 - The Immune System in Animals16
- Ch. 49 - An Introduction to Ecology15
- Ch. 50 - Behavioral Ecology16
- Ch. 51 - Population Ecology16
- Ch. 52 - Community Ecology20
- Ch. 53 - Ecosystems and Global Ecology17
- Ch. 54 - Biodiversity and Conservation Ecology18
Chapter 54, Problem 2
What community property does the red arrow in the model represent? a. high resilience b. low resistance c. high resistance
Verified step by step guidance1
Observe the graph and identify the key elements: the y-axis represents biomass, the x-axis represents time, the blue arrow indicates a disturbance, and the red arrow indicates a property of the community.
Understand the concept of community properties: resilience refers to the ability of a community to recover after a disturbance, while resistance refers to the ability of a community to remain unchanged when faced with a disturbance.
Analyze the graph: after the disturbance (blue arrow), the biomass decreases significantly, indicating that the community was affected by the disturbance.
Focus on the red arrow: it points to the recovery phase of the biomass over time after the disturbance.
Conclude that the red arrow represents high resilience, as it shows the community's ability to recover its biomass after the disturbance.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Resilience
Resilience refers to the ability of a community or ecosystem to recover from disturbances. A resilient system can return to its original state after a disruption, maintaining its structure and function. In the context of the graph, a high resilience would be indicated by a quick recovery of biomass after the disturbance.
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Resistance
Resistance is the capacity of an ecosystem to withstand disturbances without significant changes to its structure or function. A community with high resistance shows little change in biomass when faced with disturbances, while low resistance indicates a greater impact. The distinction between resistance and resilience is crucial for understanding how ecosystems respond to stressors.
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Disturbance Dynamics
Disturbance dynamics involve the patterns and processes through which disturbances affect ecosystems. These can include natural events like fires or human activities that alter biomass and community structure. The red arrow in the model likely indicates a recovery phase, highlighting how ecosystems can rebound after disturbances, which is essential for understanding community properties.
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Related Practice
Textbook Question
Why is the common phrase "humans and animals" not accurate in biology? Suggest one way that a more scientific outlook could boost conservation efforts.
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Textbook Question
What does species richness refer to? Select True or False for each statement.
T/Fthe number of species in an area
T/Fthe evenness of species in an area
T/Fthe functional diversity of a species in an area
T/Fthe phylogenetic diversity of species in an area
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