Invasion of the Zebra Mussels
The harm caused by invasive species is now the second leading threat to global biodiversity. With twenty percent of the Earth’s freshwater, one of the world’s longest coastlines, and extensive global shipping, it is sadly no surprise that Canada gains approximately fifteen new invasive species every decade.
This lesson plan contains four activities for Grade 12 Biology students. Students examine a real data set of zebra mussel densities collected from the Rideau River Canal System, graph and analyze the data, and consider the importance of proper sampling techniques. Students then calculate the hypothetical population sizes of zebra mussels in Lake Erie, how long it would take zebra mussels to filter all of the water in Lake Ontario, and calculate the hypothetical population zebra mussels could reach in just five years. Students finish by researching possible zebra mussel control methods and vote on which methods are most and least effective.
- Lectures 0
- Quizzes 0
- Skill level Grade 12
- Language English
- Students 0
- Assessments Yes
Grade 12, Biology, University Preparation: Population Dynamics
F2.2 use conceptual and mathematical population growth models to calculate the growth of populations of various species in an ecosystem | F3.3 explain factors such as carrying capacity, fecundity, density, and predation that cause fluctuation in populations, and analyse the fluctuation in the population of a species of plant, wild animal, or microorganism | F3.5 explain how a change in one population in an aquatic or terrestrial ecosystem can affect the entire hierarchy of living things in that system