In this lab, you will determine how an invasive species—the zebra and quagga mussel—affects other sp

Aug 17th, 2016
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In this lab, you will determine how an invasive species—the zebra and quagga mussel—affects other species in the freshwater lake. Use the animation to help you come up with an answer to the following: •Why do you see increases and decreases in the invasive species population? •What are the implications associated with these alterations to the ecosystem as a whole? The Effects of Zebra and Quagga Mussels Introduced into a Freshwater Lake 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 regula

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In this lab, you will determine how an invasive speciesthe zebra and quagga musselaffectsother species in the freshwater lake. Use the animation to help you come up with an answer tothe following: Why do you see increases and decreases in the invasive species population?What are the implications associated with these alterations to the ecosystem as a whole?The Effects of Zebra and Quagga Mussels Introduced into a Freshwater LakeAs you have learned, population dynamics are caused by the biotic potential of the populationand the effects of environmental resistance. When there is minimal environmental resistanceimpacting a population, it will exhibit a population explosion. One reason for minimal resistancecould be factors that no longer regulate a population (e.g., predator decline or resourceincreases). 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 theenvironmental restraints of the particular ecosystem that they invade. This in turn allows theirpopulations to grow seemingly uncontrolled and to displace other indigenous populations.Examples of such an invasive species into North America are dreissenid mussels, commonlyknown as zebra and quagga mussels. Their introduction into the Great Lakes has causedeconomic hardship and a reorganization of the ecosystem. This has led, in part, to pollutioncausing effects that can be link

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