Lesson 6 – Revisiting the GSL Network

Course:  Life Science, Integrated Science, STEM

Unit:  Ecological Networks Part 1- Network interactions


See Standards Addressed for all NGSS and WA State (Science, Math and Literacy).  In addition to the aligned objectives linked above, for this lesson, here is a breakdown of:

What Students Learn:

  • Energy flows in one direction and is stored in matter.
  • Trophic levels indicate an organism’s position on a food chain.
  • The amount of available energy decreases as it progresses through food chains; the total amount of available energy in a trophic level is less in higher trophic levels than in lower trophic levels.
  • Identify the interdependent relationships between populations, communities, ecosystems and the biosphere (EALR 1.2 and 1.3).
  • Analyze the effects of natural events and human activities on the earth’s capacity to sustain biological diversity (EALR 1.3).
  • Explain how organisms can sustain life by obtaining, transporting, transforming, releasing, and eliminating matter and energy (EALR 1.3).

What Students Do:

  • Focusing on the Great Salt Lake Ecological Network, students will describe energy relationships, emphasizing the concept of interdependence, between the different components, both abiotic and biotic, of an ecological network.
  • Analyze how an ecological disturbance in a single abiotic or biotic factor could affect an entire ecosystem. In this analysis, recognize the components, structure, and organization of systems and the interconnections within and among them.