The Effects of Zebra and Quagga Mussels Introduced into a
As you have learned, population dynamics are caused
by the biotic potential of the population and the effects of environmental
resistance. When there is minimal environmental resistance impacting a
population, it will exhibit a population explosion. One reason for minimal
resistance could be factors that no longer regulate a population (e.g.,
predator decline or resource increases). Another reason for a population
explosion is the introduction of an invasive species. Invasive species
are species foreign to an ecosystem and are not immediately regulated by the
environmental restraints of the particular ecosystem that they invade.
This in turn allows their populations to grow seemingly uncontrolled and to
displace other indigenous populations. Examples of such an invasive species
into North America are dreissenid mussels, commonly known as zebra and quagga
mussels. Their introduction into the Great Lakes has caused economic hardship
and a reorganization of the ecosystem. This has led, in part, to pollution-causing
effects that can be linked to an alga known as Cladophora.
Ecosystems are webs of intricately balanced interactions.
But what happens when a new species is introduced that uses a disproportionate
share of the ecosystem’s resources?
Use the attachment for assignment instructions and data
Phase 5 Lab Report
Instructions: You will write a
1-page lab report using the scientific method to answer the following questions:
When your lab
report is complete – submit it in the classroom.
Part I: Using the lab
animation, fill in the data table below to help you generate your hypothesis,
outcomes, and analysis.
and Quagga Mussel (density/m2)
Part II: Write a 1-page lab
report using the following scientific method sections:
Provide references in APA format. This includes a
reference list and in-text citations for references used in the Introduction
Give your paper a title and identify each section
as specified above. Although the hypothesis will be a 1-sentence answer, the
other sections will need to be paragraphs to adequately explain your
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