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Ecological Core Concepts -- Individuals -- Morphology

View Resource Mimicry

This laboratory exercise examines the response of native birds to different frequencies of a mimic species while holding the other two parameters constant - the degree of distastefulness and the resemblance of the mimic to the model.


Publisher: EcoEd Digital Library

View Resource Assessment of the teaching of evolution by natural selection through a hands-on simulation

Given the expense, time and considerable teacher effort required to perform hands-on activities in the classroom, their consequences for student learning need to be evaluated. This study takes one example of student-active learning, students collecting and analyzing their own data, and asks whether the physical act of collecting data increases students’ learning of natural selection and affect...


Publisher: EcoEd Digital Library

View Resource Metabolic ecology: How do body size and temperature affect nutrient cycling rates?

In this TIEE dataset, students answer the question of whether nutrient cycling (excretion) rates of fish in lakes scale with body size and temperature as predicted by The Metabolic Theory of Ecology. Students use data on the nitrogen and phosphorus excretion rates of fish to test hypotheses related to metabolic ecology.


Publisher: EcoEd Digital Library

View Resource Are males cheaper than females? Male and female costs of reproduction

In this TIEE experiment, students investigate the costs of reproduction. In dioecious plants, a female's investment in reproduction is typically much greater than a male's, because while both sexes encounter the basic cost to produce a flower, only females have to allocate energy to seeds, exceeding the energy requirements to produce pollen. This 1-2 week field project tests whether the effects of...


Publisher: EcoEd Digital Library

View Resource Pathways to Scientific Teaching, Chapter 5a of 7: Novel assessments: detecting success in student learning

This article illustrates how multiple methods can be used to assess student understanding of the “novel weapons hypothesis” presented in the Callaway and Ridenour review of theories regarding invasive plant species[attached]. The paper introduces students to concepts of natural selection, fitness, competition, and invasion of exotic species. The assessments we describe here engage students ...


Publisher: EcoEd Digital Library

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