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Ecological Core Concepts -- Communities -- Spatial and temporal dynamics

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View Resource A Crosstown Walk to Assess Environmental Changes Along an Urban Socioeconomic Gradient

In this Experiment, students examine the relationships between demographic factors (economic, social, etc.) and environmental quality. Students observe and collect data on the differences in...

http://tiee.esa.org/vol/v3/experiments/crosstown/abstract.ht...
View Resource A mountain scene in Yukon, Alaska depicts how vegetation changes from the base to the top of the mountain due to differences in elevation and topograp

A mountain scene in Yukon, Alaska depicts how vegetation changes from the base to the top of the mountain due to differences in elevation and topography. The base of the mountain is vegetated by...

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http://www.esajournals.org/doi/abs/10.1890/04-0043
View Resource Aerial view of forest fire in pine forest in the Everglades National Park.

Fire is a natural factor that maintains the pinelands and other natural communities in South Florida. The frequency of these fires is influenced by large-scale climate cycles, particularly El Nino...

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http://www.esajournals.org/doi/abs/10.1890/02-0183
View Resource An ant (Crematogaster opuntiae) visits an extrafloral nectary of a fishhook barrel cactus (Ferocactus wislizeni).

An ant (Crematogaster opuntiae) visits an extrafloral nectary of a fishhook barrel cactus (Ferocactus wislizeni). In many mutualistic species interactions, a suite of species in one guild exchanges...

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http://www.esajournals.org/doi/abs/10.1890/05-0465
View Resource Comparing the Influence of Precipitation, Fire, and Topography on Plant Productivity in the Tallgrass Prairie

This Data Set allows students to use long-term data from Konza to explore the relationships between multiple characteristics of a tallgrass prairie ecosystem and the productivity of prairie plants....

http://tiee.esa.org/vol/v3/issues/data_sets/konza/abstract.h...
View Resource Decomposition and Soil CO2 Emission

Students investigate the factors that control the rate at which CO2 is emitted from soil using simple soil chambers and soda lime in a field experiment. Students in small groups design and conduct...

View Resource Ecology of Habitat Contrasts: An Example from the Holyoke Range, MA

This Experiment introduces students to a local ecosystem and what ecologists do: observe and describe patterns in organisms and then attempt to explain why those patterns exist. In the example used...

http://tiee.esa.org/vol/v1/experiments/holyoke/pdf/holyoke.p...
View Resource Effects of artificial lighting along a beach on loggerhead sea turtles (Caretta caretta)

Example of artificial lighting along a beach. Artificial lights inhibit the reproduction of loggerhead sea turtles (Caretta caretta) in two ways. First, adult females tend to avoid laying their eggs...

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View Resource Elk (Cervus elaphus) search for food through snow in winter in the Rocky Mountains.

Elk (Cervus elaphus) and other ungulates in the Rocky Mountains of North America must cope with food shortages and severe weather during winter. The strength of density-dependence in these ungulate...

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http://www.esajournals.org/doi/abs/10.1890/05-0355
View Resource Hatchling loggerhead sea turtle (Caretta caretta) entering the surf on a beach in South Carolina

Photo of a hatchling loggerhead sea turtle (Caretta caretta) entering the surf on a beach in South Carolina. After hatching, juvenile sea turtles are guided to the ocean by celestial light...

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