Topics Explored: Trophic Levels, Biodiversity, Ecosystems, Urbanization, Endangered Species, % Change Calculations
This case study provides a detailed background on the six subspecies of elk in North America, and analyzes the positive and negative impacts humans have had on the elk populations throughout the last 300 years. Answer key included.
Case Study: North American Elk (Teacher & Student Edition)
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(1 Teacher Edition and 1 Student Edition)Next Generation Science Standards (NGSS):
HS-LS2-1. Use mathematical and/or computational representations to support explanations of factors that affect carrying capacity of ecosystems at different scales.
HS-LS2-2. Use mathematical representations to support and revise explanations based on evidence about factors affecting biodiversity and populations in ecosystems of different scales.
HS-LS2-6. Evaluate the claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may result in a new ecosystem.
HS-LS2-7. Design, evaluate, and refine a solution for reducing the impacts of human activities on the environment and biodiversity.
HS-LS4-6. Create or revise a simulation to test a solution to mitigate adverse impacts of human activity on biodiversity.AP® Environmental Science Learning Objectives:
1.1 Explain how the availability of resources influences species interactions.
1.8 Explain how solar energy is acquired and transferred by living organisms.
1.9 Explain how energy flows and matter cycles through trophic levels.
2.1 Explain levels of biodiversity and their importance to ecosystems.
1.11 Describe food chains and food webs, and their constituent members by trophic level.
5.10 Describe the effects of urbanization on the environment.
9.9 Explain how species become endangered and strategies to combat the problem.
9.10 Explain how human activities affect biodiversity and strategies to combat the problem.AP® Environmental Science Practices:
Practice 1: Explain environmental concepts, processes, and models presented in written format.
Practice 2: Analyze visual representations of environmental concepts and processes.
Practice 3: Analyze sources of information about environmental issues.
Practice 4: Analyze research studies that test environmental principles.
Practice 5: Analyze and interpret quantitative data represented in tables, charts, and graphs.
Practice 6: Apply quantitative methods to address environmental concepts.
Practice 7: Propose and justify solutions to environmental problems.
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