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Ecosystem Productivity Study Guide

This guide explains primary productivity, differentiating between GPP and NPP, and detailing their impact on food webs and ecosystem health. It covers how these metrics are calculated and their importance in ecological studies.

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Scientific Method and Tools

Experimental Design Fundamentals

Understanding hypotheses, independent and dependent variables, and the role of control groups in establishing baselines.

  • Hypothesis formulation
  • Testable statements
  • Falsifiability
  • Independent variable
  • Dependent variable
  • Controlled variables
  • Control group
  • Experimental group
  • Baseline comparison

Strengthening Experiments

Techniques to increase reliability, including increasing sample size, repeating trials, and random assignment.

  • Sample size
  • Replication
  • Random assignment
  • Reliability
  • Reproducibility

Data Interpretation and Graphing

How to read axes, identify trends, and distinguish between correlation and causation in ecological datasets.

  • Data analysis
  • Graph interpretation
  • Correlation vs. causation
  • Trend identification

Biodiversity and Productivity

Primary Productivity

Distinguishing between Gross Primary Productivity (GPP) and Net Primary Productivity (NPP) and their roles in supporting food webs.

  • Photosynthesis
  • Chemosynthesis
  • Autotrophs
  • Gross Primary Productivity (GPP)
  • Net Primary Productivity (NPP)
  • Autotrophic Respiration
  • Food Webs
  • Ecosystem Carrying Capacity

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