BIOLOGY FOR LIFE
  • ⭐IB Bio Syllabus⭐
    • Unity and Diversity (A) >
      • A1 molecules >
        • A1.1: Water
        • A1.2: Nucleic Acids
      • A2 Cells >
        • A2.1: Origins of Cells
        • A2.2: Cell Structure
        • A2.3: Viruses
      • A3 Organisms >
        • A3.1: Diversity of Organisms
        • A3.2: Classification and Cladistics
      • A4 Ecosystems >
        • A4.1: Evolution and Speciation
        • A4.2: Conservation of Biodiversity
    • Form and Function (B) >
      • B1 Molecules >
        • B1.1: Carbohydrates and Lipids
        • B1.2: Proteins
      • B2 Cells >
        • B2.1 Membranes and Membrane Transport
        • B2.2 Organelles and Compartmentalization
        • B2.3 Cell Specialization
      • B3 Organisms >
        • B3.1 Gas Exchange
        • B3.2 Transport
        • B3.3 Muscle and Motility
      • B4 Ecosystems >
        • B4.1 Adaptation to Environment
        • B4.2 Ecological Niches
    • Interaction and Interdependence (C) >
      • C1 Molecules >
        • C1.1: Enzymes and Metabolism
        • C1.2: Cell Respiration
        • C1.3: Photosynthesis
      • C2 Cells >
        • C2.1: Chemical Signaling
        • C2.2: Neural Signaling
      • C3 Organisms >
        • C3.1: Integration of Body Systems
        • C3.2: Defense Against Disease
      • C4 Ecosystems >
        • C4.1 Populations and Communities
        • C4.2 Transfers of Energy and Matter
    • Continuity and Change (D) >
      • D1 Molecules >
        • D1.1: DNA Replication
        • D1.2: Protein Synthesis
        • D1.3: Mutation and Gene Editing
      • D2 Cells >
        • D2.1: Cell and Nuclear Division
        • D2.2: Gene Expression
        • D2.3: Water Potential
      • D3 Organisms >
        • D3.1: Reproduction
        • D3.2: Inheritance
        • D3.3: Homeostasis
      • D4 Ecosystems >
        • D4.1: Natural Selection
        • D4.2: Stability and Change
        • D4.3: Climate Change
    • Legacy Syllabus (2016) >
      • Core >
        • 1: Cell Biology >
          • 1.1: Introduction to Cells
          • 1.2: Ultrastructure of Cells
          • 1.3: Membrane Structure
          • 1.4: Membrane Transport
          • 1.5: The Origin of Cells
          • 1.6: Cell Division
        • 2: Molecular Biology >
          • 2.1: Molecules to Metabolism
          • 2.2: Water
          • 2.3: Carbohydrates and Lipids
          • 2.4: Proteins
          • 2.5: Enzymes
          • 2.6: DNA and RNA
          • 2.7: DNA Replication, Transcription and Translation
          • 2.8: Cell Respiration
          • 2.9: Photosynthesis
        • 3: Genetics >
          • 3.1: Genes
          • 3.2: Chromosomes
          • 3.3: Meiosis
          • 3.4: Inheritance
          • 3.5: Genetic Modification and Biotechnology
        • 4: Ecology >
          • 4.1: Species, Communities and Ecosystems
          • 4.2: Energy Flow
          • 4.3: Carbon Cycling
          • 4.4: Climate Change
        • 5: Evolution and Biodiversity >
          • 5.1: Evidence for Evolution
          • 5.2: Natural Selection
          • 5.3: Classification and Biodiversity
          • 5.4: Cladistics
        • 6: Human Physiology >
          • 6.1: Digestion and Absorption
          • 6.2: The Blood System
          • 6.3: Defense Against Infectious Disease
          • 6.4: Gas Exchange
          • 6.5: Neurons and Synapses
          • 6.6: Hormones, Homeostasis and Reproduction
      • Higher Level >
        • 7: Nucleic Acids >
          • 7.1: DNA Structure and Replication
          • 7.2: Transcription and Gene Expression
          • 7.3: Translation
        • 8: Metabolism, Cell Respiration & Photosynthesis >
          • 8.1: Metabolism
          • 8.2: Cell Respiration
          • 8.3: Photosynthesis
        • 9: Plant Biology >
          • 9.1: Transport in the Xylem of Plants
          • 9.2: Transport in the Phloem of Plants
          • 9.3: Growth in Plants
          • 9.4: Reproduction in Plants
        • 10: Genetics and Evolution >
          • 10.1: Meiosis
          • 10.2: Inheritance
          • 10.3: Gene Pools and Speciation
        • 11: Animal Physiology >
          • 11.1: Antibody Production and Vaccination
          • 11.2: Movement
          • 11.3: Kidney and Osmoregulation
          • 11.4: Sexual Reproduction
      • Options >
        • D: Human Physiology >
          • D.1: Human Nutrition
          • D.2: Digestion
          • D.3: Functions of the Liver
          • D.4: The Heart
          • D.5: Hormones and Metabolism
          • D.6: Transport of Respiratory Gases
  • IB Requirements
    • Learner Profile
    • Collaborative Sciences Project
    • External Assessment
    • Internal Assessment >
      • Research Design
      • Analysis
      • Conclusion
      • Evaluation
    • Extended Essay
  • Exam Revision
    • Revision Tools
  • Skills for Biology
    • Tools >
      • Experimental Techniques >
        • Addressing Safety
        • Measuring Variables >
          • Lab Drawings
          • Measurement Uncertainty
        • Techniques >
          • Microscopy
      • Technology >
        • Graphing with Excel
      • Mathematics >
        • Statistics >
          • Glossary of Statistic Terms and Equations
          • Descriptive Statistics >
            • Skew and the Normal Distribution
            • Outliers
            • Measures of Central Tendancy
            • Measures of Spread
            • Pearson Correlation
          • Inferential Statistics >
            • T-Test
            • ANOVA
            • Kruskal-Wallis
            • X2 Test for Independence
            • X2 Goodness of Fit
        • Graphing >
          • Interpreting Error Bars
    • Inquiry Processes >
      • Exploring & Designing >
        • Research Questions
        • Hypotheses and Predictions
        • Varaibles
        • Sampling
      • Collecting & Processing Data >
        • Data Tables
      • Concluding & Evaluating >
        • Error Analysis
  • SHS Course Info
    • Above & Beyond >
      • Biology Club
      • Pumpkin Carving
      • Scavenger Hunt
      • Science News
      • Wood Duck Project (legacy)
      • Invasive Crayfish Project (legacy)
    • Assessment >
      • Class Grading IB Bio I
      • Class Grading IB Bio II
      • Daily Quizzes (legacy)
      • Lab Practicals (legacy)
    • Class Photos
    • Recommendations
  • Contact
  • About
    • Philosophy
    • Resume
    • Reflection
    • Favorite Quotes
    • AEF Blog
  • Expeditions
    • Bahamas (2009)
    • Trinidad (2010)
    • Trinidad (2011)
    • Ecuador (2012)
    • Trinidad (2013)
    • Peru (2014)
    • Bahamas (2015)
    • Peru (2016)
    • Costa Rica (2017)
    • Costa Rica (2018)
    • Arizona (2022)
    • Florida (2023)
    • Belize (2024)
    • Costa Rica (2025)
  • Summer Ecology Research
  • Teacher Resources

A4.2:  Conservation of Biodiversity

Guiding Questions:  
Guiding questions help students view the content of the syllabus through the conceptual lenses of both the themes and the levels of biological organization.
  • What factors are causing the sixth mass extinction of species? 
  • How can conservationists minimize the loss of biodiversity? 
​
​
Linking Questions:  
Linking questions strengthen students’ understanding by making connections between topics.  The ideal outcome of the linking questions is networked knowledge.
  • In what ways is diversity a property of life at all levels of biological organization?
  • How does variation contribute to the stability of ecological communities?

Resources:
  • ​Quizlet study set for this topic.  Coming soon!
A4.2.1— Biodiversity as the variety of life in all its forms, levels and combinations.
  • Define biodiversity.
  • Outline how biodiversity is quantified at different levels of biological organization.​
A4.2.2— Comparisons between current number of species on Earth and past levels of biodiversity.
  • Compare the number of species on earth today with past levels of biodiversity.
  • Define extinction.
  • State the number of mass extinction events that have occurred on Earth.
  • Outline the cause and effect of mass extinctions that have occurred on Earth.
A4.2.3— Causes of anthropogenic species extinction.
  • Define anthropogenic.
  • Outline anthropogenic causes of species extinction. 
  • Outline the extinction of the Moas.
  • Outline the extinction of the Caribbean monk seal.
  • Outline the extinction of a local species.
A4.2.4— Causes of ecosystem loss. 
  • List direct and indirect anthropogenic causes of ecosystem loss. 
  • Outline the cause of the loss of mixed dipterocarp forest ecosystem in Southeast Asia. 
  • Outline the cause of the loss of temperate rainforest ecosystem of the Pacific Northwest of the United States. ​
A4.2.5— Evidence for a biodiversity crisis.
  • List the types of evidence that can be monitored to assess the status of a biodiversity crisis.
  • Explain the use of species richness and evenness measures in the tracking of biodiversity over time.
  • State the role of “citizen scientists” in monitoring a biodiversity crisis.​
A4.2.6- Causes of the current biodiversity crisis.
  • Discuss the impact of human population growth on the causes of the current biodiversity crisis.
A4.2.7—  Need for several approaches to conservation of biodiversity.
  • Compare in situ to ex situ approaches to conservation.
  • Outline the advantages of an in situ approach to conservation.
  • Define “rewilding.”
  • List examples of ex situ conservation programs.
A4.2.8—  Selection of evolutionarily distinct and globally endangered species for conservation prioritization in the EDGE of Existence programme.
  • Outline the rationale used for conservation by the EDGE of Existence programme.
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Picture
  • ⭐IB Bio Syllabus⭐
    • Unity and Diversity (A) >
      • A1 molecules >
        • A1.1: Water
        • A1.2: Nucleic Acids
      • A2 Cells >
        • A2.1: Origins of Cells
        • A2.2: Cell Structure
        • A2.3: Viruses
      • A3 Organisms >
        • A3.1: Diversity of Organisms
        • A3.2: Classification and Cladistics
      • A4 Ecosystems >
        • A4.1: Evolution and Speciation
        • A4.2: Conservation of Biodiversity
    • Form and Function (B) >
      • B1 Molecules >
        • B1.1: Carbohydrates and Lipids
        • B1.2: Proteins
      • B2 Cells >
        • B2.1 Membranes and Membrane Transport
        • B2.2 Organelles and Compartmentalization
        • B2.3 Cell Specialization
      • B3 Organisms >
        • B3.1 Gas Exchange
        • B3.2 Transport
        • B3.3 Muscle and Motility
      • B4 Ecosystems >
        • B4.1 Adaptation to Environment
        • B4.2 Ecological Niches
    • Interaction and Interdependence (C) >
      • C1 Molecules >
        • C1.1: Enzymes and Metabolism
        • C1.2: Cell Respiration
        • C1.3: Photosynthesis
      • C2 Cells >
        • C2.1: Chemical Signaling
        • C2.2: Neural Signaling
      • C3 Organisms >
        • C3.1: Integration of Body Systems
        • C3.2: Defense Against Disease
      • C4 Ecosystems >
        • C4.1 Populations and Communities
        • C4.2 Transfers of Energy and Matter
    • Continuity and Change (D) >
      • D1 Molecules >
        • D1.1: DNA Replication
        • D1.2: Protein Synthesis
        • D1.3: Mutation and Gene Editing
      • D2 Cells >
        • D2.1: Cell and Nuclear Division
        • D2.2: Gene Expression
        • D2.3: Water Potential
      • D3 Organisms >
        • D3.1: Reproduction
        • D3.2: Inheritance
        • D3.3: Homeostasis
      • D4 Ecosystems >
        • D4.1: Natural Selection
        • D4.2: Stability and Change
        • D4.3: Climate Change
    • Legacy Syllabus (2016) >
      • Core >
        • 1: Cell Biology >
          • 1.1: Introduction to Cells
          • 1.2: Ultrastructure of Cells
          • 1.3: Membrane Structure
          • 1.4: Membrane Transport
          • 1.5: The Origin of Cells
          • 1.6: Cell Division
        • 2: Molecular Biology >
          • 2.1: Molecules to Metabolism
          • 2.2: Water
          • 2.3: Carbohydrates and Lipids
          • 2.4: Proteins
          • 2.5: Enzymes
          • 2.6: DNA and RNA
          • 2.7: DNA Replication, Transcription and Translation
          • 2.8: Cell Respiration
          • 2.9: Photosynthesis
        • 3: Genetics >
          • 3.1: Genes
          • 3.2: Chromosomes
          • 3.3: Meiosis
          • 3.4: Inheritance
          • 3.5: Genetic Modification and Biotechnology
        • 4: Ecology >
          • 4.1: Species, Communities and Ecosystems
          • 4.2: Energy Flow
          • 4.3: Carbon Cycling
          • 4.4: Climate Change
        • 5: Evolution and Biodiversity >
          • 5.1: Evidence for Evolution
          • 5.2: Natural Selection
          • 5.3: Classification and Biodiversity
          • 5.4: Cladistics
        • 6: Human Physiology >
          • 6.1: Digestion and Absorption
          • 6.2: The Blood System
          • 6.3: Defense Against Infectious Disease
          • 6.4: Gas Exchange
          • 6.5: Neurons and Synapses
          • 6.6: Hormones, Homeostasis and Reproduction
      • Higher Level >
        • 7: Nucleic Acids >
          • 7.1: DNA Structure and Replication
          • 7.2: Transcription and Gene Expression
          • 7.3: Translation
        • 8: Metabolism, Cell Respiration & Photosynthesis >
          • 8.1: Metabolism
          • 8.2: Cell Respiration
          • 8.3: Photosynthesis
        • 9: Plant Biology >
          • 9.1: Transport in the Xylem of Plants
          • 9.2: Transport in the Phloem of Plants
          • 9.3: Growth in Plants
          • 9.4: Reproduction in Plants
        • 10: Genetics and Evolution >
          • 10.1: Meiosis
          • 10.2: Inheritance
          • 10.3: Gene Pools and Speciation
        • 11: Animal Physiology >
          • 11.1: Antibody Production and Vaccination
          • 11.2: Movement
          • 11.3: Kidney and Osmoregulation
          • 11.4: Sexual Reproduction
      • Options >
        • D: Human Physiology >
          • D.1: Human Nutrition
          • D.2: Digestion
          • D.3: Functions of the Liver
          • D.4: The Heart
          • D.5: Hormones and Metabolism
          • D.6: Transport of Respiratory Gases
  • IB Requirements
    • Learner Profile
    • Collaborative Sciences Project
    • External Assessment
    • Internal Assessment >
      • Research Design
      • Analysis
      • Conclusion
      • Evaluation
    • Extended Essay
  • Exam Revision
    • Revision Tools
  • Skills for Biology
    • Tools >
      • Experimental Techniques >
        • Addressing Safety
        • Measuring Variables >
          • Lab Drawings
          • Measurement Uncertainty
        • Techniques >
          • Microscopy
      • Technology >
        • Graphing with Excel
      • Mathematics >
        • Statistics >
          • Glossary of Statistic Terms and Equations
          • Descriptive Statistics >
            • Skew and the Normal Distribution
            • Outliers
            • Measures of Central Tendancy
            • Measures of Spread
            • Pearson Correlation
          • Inferential Statistics >
            • T-Test
            • ANOVA
            • Kruskal-Wallis
            • X2 Test for Independence
            • X2 Goodness of Fit
        • Graphing >
          • Interpreting Error Bars
    • Inquiry Processes >
      • Exploring & Designing >
        • Research Questions
        • Hypotheses and Predictions
        • Varaibles
        • Sampling
      • Collecting & Processing Data >
        • Data Tables
      • Concluding & Evaluating >
        • Error Analysis
  • SHS Course Info
    • Above & Beyond >
      • Biology Club
      • Pumpkin Carving
      • Scavenger Hunt
      • Science News
      • Wood Duck Project (legacy)
      • Invasive Crayfish Project (legacy)
    • Assessment >
      • Class Grading IB Bio I
      • Class Grading IB Bio II
      • Daily Quizzes (legacy)
      • Lab Practicals (legacy)
    • Class Photos
    • Recommendations
  • Contact
  • About
    • Philosophy
    • Resume
    • Reflection
    • Favorite Quotes
    • AEF Blog
  • Expeditions
    • Bahamas (2009)
    • Trinidad (2010)
    • Trinidad (2011)
    • Ecuador (2012)
    • Trinidad (2013)
    • Peru (2014)
    • Bahamas (2015)
    • Peru (2016)
    • Costa Rica (2017)
    • Costa Rica (2018)
    • Arizona (2022)
    • Florida (2023)
    • Belize (2024)
    • Costa Rica (2025)
  • Summer Ecology Research
  • Teacher Resources