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Ecological Core Concepts -- Individuals -- Physiology

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View Resource A close-up view of Aloe vryheidensis flowers with dark-colored nectar visible.

Floral nectar is offered by plants to animals as a reward for pollination. Nectar is usually clear and contains sugar and trace amounts of amino acids. Colored nectar also occurs, but is less common....

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http://www.esajournals.org/doi/abs/10.1890/0012-9658%282006%...
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...

http://tiee.esa.org/vol/v7/experiments/stehlik/abstract.html
View Resource Bark scorpion (Centriodes sp.) in the field under a blacklight (UV light)

A bark scorpion (Centroides sp., green in the photograph) is pictured in an oval of ultraviolet light (purple in the photograph), demonstrating a unique method for studying scorpions in their native...

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View Resource Environmental Correlates of Leaf Stomata Density

In this Experiment, students make impressions of leaf stomata (using clear nail polish) and test a hypothesis of their choice about how leaf stomata density might vary under different environmental...

http://tiee.esa.org/vol/v1/experiments/stomata/stomata.html
View Resource Evolution of Ideas about Causes of Amphibian Deformities

This Issue focuses on a research article by Blaustein and Johnson (2003) that was published in Frontiers in Ecology and the Environment. The article discusses amphibian deformities, which may be...

http://tiee.esa.org/vol/v2/issues/frontier_sets/amphibians/a...
View Resource Investigating the Evolutionary Adaptations that have Enabled Plants to Survive in a Diversity of Habitats

During this exercise students will explore plant diversity in a greenhouse facility to investigate the evolutionary adaptations that have allowed plants to survive in a diversity of habitats....

https://www.msu.edu/course/bs/110/lab/prelabs_postlabs.html
View Resource Leaves as Thermometers

Plant morphology reflects evolutionary solutions to environmental constraints. In this experiment, students use this principle to predict the climate at their site. They collect and measure a set of...

http://tiee.esa.org/vol/v9/experiments/berdanier/abstract.ht...
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...

http://tiee.esa.org/vol/v7/issues/data_sets/vanni/abstract.h...
View Resource Seedling Growth of Wisconsin Fast Plants (Brassica rapa) in Field Environments

In this Experiment, students investigate the effects of ecological factors on the growth of Wisconsin Fast Plants, also known as rapid-cycling brassica (Brassica rapa L.). Treatments could include...

http://tiee.esa.org/vol/v1/experiments/fastplants/fastplants...

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