MERLOT Search - materialType=Simulation&category=2612
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A search of MERLOT materialsCopyright 1997-2015 MERLOT. All rights reserved.Fri, 29 May 2015 03:59:05 PDTFri, 29 May 2015 03:59:05 PDTMERLOT Search - materialType=Simulation&category=2612http://www.merlot.org:80/merlot/images/merlot.gif
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4434Woods
http://www.merlot.org/merlot/viewMaterial.htm?id=90780
Woods simulates growth and competition among three species of trees of the northeastern United States. The user may manipulate various growth and reproductive parameters and then oserve the effects on the community.Connecting Concepts: Ecology/Population Dynamics
http://www.merlot.org/merlot/viewMaterial.htm?id=83565
This simulation/tutorial consists of three topics. In topic 1, students conduct a study of a zebra mussel population in a fictitious lake and present their findings during a virtual teleconference. Students will: 1) review qualitative descriptions of growth curves for the exponential and logistic models, selecting one to test at the lake; 2) collect and plot data, and determine which of the models the data fits; 3) answer questions about populations at other localities by calculating rmax, t, and N using their data. In topic 2, students review the math and biology behind the logistic growth model with the help of a fish population. Students will: 1) complete interactive explorations of density-dependence and carrying capacity, the difference between r (realized intrinsic rate of increase or per capita, growth rate), rmax, (maximum intrinsic rate of increase and dN/dt (population growth rate), how growth rate changes over time while r decreases; and 2) summarize and compare properties of exponential and logistic growth. In topic 3, students follow the growth of the Kruger National Park elephant population from 1903-1996. While following the history of the population, students calculate values using the logistic equation. Students will complete a case study in which they: 1) learn the biological and sociopolitical history of the KNP elephants; 2) calculate dN/dt, N, and 1-(N/K) over time; 3) explain how assumptions of logistic growth affect the shape of the curve; and 4) evaluate how well the KNP population fits the logistic model.AidGame
http://www.merlot.org/merlot/viewMaterial.htm?id=79954
The Aid Game is about giving charitable aid to developing countries. These countries may suffer the dual challenges of high mortality from hunger and disease, and even higher birthrates, leading to ever greater demands on their natural resources, and more hunger, in a vicious cycle. In the Aid Game, you explore alternative aid packages, to see which kinds of aid work best, and whyBuild-a-Prairie Game
http://www.merlot.org/merlot/viewMaterial.htm?id=90044
An interactive game, this web site allows visitors to restore a tallgrass or shortgrass prairie by selecting the appropriate grasses, forbs, birds, mammals, herps, and insects. The selections are discussed explaining why the choice is beneficial or not along with links to read more and an opportunity to select again. The results of the "correct" selections are viewed via animation. Users can "see" their prairie being built and also discover how a prairie is rejuvenated. Although geared toward grade school learners, the site could be valuable to educators at all levels.Competition
http://www.merlot.org/merlot/viewMaterial.htm?id=90816
Competition explores Lotka-Volterra Competition models, using twin plots, one displaying isoclines, and the other a time series. Trajectories can be added to the isoclines with a mouse click.Connecting Concepts: Ecology/Population Dynamics 1: Exponential Growth
http://www.merlot.org/merlot/viewMaterial.htm?id=83566
Students conduct a study of a zebra mussel population in a fictitious lake and present their findings during a (simulated) virtual teleconference. Students will: 1) review qualitative descriptions of growth curves for the exponential and logistic models, selecting one to test at the lake; 2) collect and plot data, and determine which of the models the data fits; 3) answer questions about populations at other localities by calculating rmax, t, and N using their data.DemographyLab
http://www.merlot.org/merlot/viewMaterial.htm?id=90098
Allows students to investigate how differences in population size, age-structure, and age-specific fertility and mortality rates affect human population growth. Default values for seven countries have been incorporated into the program to allow comparisons across different nations. Students can alter the default values to conduct "what if" experiments. Can be used to investigate phenomena such as exponential growth and decline, stable age structure, zero population growth, demographic momentum, dependency ratios, sex ratios, and marriage squeezes.Exploitation Ecosystems
http://www.merlot.org/merlot/viewMaterial.htm?id=90810
Exploitation Ecosystems is an introduction to classical theory on 3-trophic level food chains, across a gradient of plant carrying capacities, with two models controlling carnivore deathrate.GrassWorld
http://www.merlot.org/merlot/viewMaterial.htm?id=90777
GrassWorld is a three-level food chain which includes two species of plants, an herbivore (grasshopper) and a carnivore (spider). The user may manipulate several variables for each and observe the effects.Human Demographics
http://www.merlot.org/merlot/viewMaterial.htm?id=79958
Population pyramids. Allows students to shift and change demographic rates, to better understand human population projections. Used in teaching Environmental Science and Conservation Biology. A Java 1.2 version is available at http://www.cbc.yale.edu/courseware/swingdemographics.html