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Discipline Specific Core Concepts is Ecological Core Concepts -- Ecosystems -- Food webs and trophic cascades
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View Resource Long-term Response of an Arctic River Community to Phosphorus Fertilization

With this TIEE Data Set, students assess effects of phosphorus addition on algae, moss, mayflies, and arctic grayling fish in the Kuparuk River, in the foothills of the North Slope of Alaska. Data...

http://tiee.esa.org/vol/v3/issues/data_sets/arc/abstract.htm...
View Resource Issues in Ecology, Issue 04: Biodiversity and Ecosystem Functioning

In this report, biodiversity and its relevance to the ecosystems that support humanity is discussed. Ecosystem functioning is defined as the collective activities of all biota within an ecosystem...

View Resource Issues in Ecology, Issue 05: Biotic Invasions

This report is an introduction to exotic species invasions. An exotic species becomes invasive, when it proliferates unchecked across the region in which it was introduced. The transformation from...

View Resource A wolf (Canis lupus) in the snow in Banff National Park, which was recolonized by wolves in the 1980s.

The Bow Valley in Banff National Park, Canada, was recolonized by wolves (Canis lupus) in the mid-1980s, although wolves did not establish themselves in areas near the growing town of Banff. This...

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http://www.esajournals.org/doi/abs/10.1890/04-1269
View Resource The red rock crab (Cancer productus) with the shell of a prey species, the native littleneck clam (Protothaca staminea).

The red rock crab (Cancer productus) is a predator of intertidal clams along the Pacific coastlines of northwestern United States and British Columbia. The crab is shown with the shell of a prey...

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http://www.esajournals.org/doi/abs/10.1890/03-0580
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