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(4 classifications) (53 resources)

Ecological Core Concepts -- Ecosystems

Discipline Specific Core Concepts Classifications
Biogeochemical cycling (24)
Decomposition (5)
Food webs and trophic cascades (16)
Production and respiration (9)

Resources
View Resource A periodical cicada (Magicicada sp.) molts on the side of a tree after emerging from underground.

A periodical cicada (left) has mostly freed itself from its old exoskeleton (right). The cicada's new exoskeleton is light in color and has not yet hardened. Every 13 or 17 years, periodical cicadas...

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http://www.esajournals.org/doi/abs/10.1890/06-0570.1
View Resource A Tributary Enters the Stream

A tributary to the Turure River enters the main stream. The tributary (in the center of the photo) runs below the road cut. The main part of the stream (along the bottom of the photo) comes from an...

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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 An Antarctic starfish (Odontaster validus) climbs over an Antarctic scallop (Adamisium colbecki).

An Antarctic starfish (Odontaster validus) climbs over an Antarctic scallop (Adamisium colbecki) in the coastal Ross Sea. Antarctic starfish are omnivores with a wide range of potential prey and an...

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http://www.esajournals.org/doi/abs/10.1890/06-1396.1
View Resource An Arctic fox (Alopex lagopus) captures a Least Auklet (Aethia pusilla) in the Aleutian Islands.

During the 100-150 years since they were introduced to the Aleutian Islands, the Arctic fox (Alopex lagopus) and Norway rat (Rattus norvegicus) have extirpated native seabirds from most of the...

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http://www.esajournals.org/doi/abs/10.1890/05-0496
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 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 Degradation of a Tropical Stream [resource group]

A series of photographs showing the widening of a road that then caused an increase in the sediment load in the streams below the road. The photographs show the road and the surrounding tropical...

http://ecoed.esa.org/index.php?P=AdvancedSearch&Q=Y&FK=%22De...
View Resource Dry rivers, vibrant with culture and life: Press release

A press release for an article addressing the benefits of dry river beds. This article also explores how human manipulation of seasonal water sources for land use disrupts the natural cycle necessary...

http://www.esa.org/pao/pressreleases.php?uid=121316
View Resource Effects of Plant Biodiversity on Ecosystem Productivity within a Savannah Grassland Community

This Data Set focuses on the question: How does plant biodiversity in a grassland savannah community affect ecosystem productivity? To investigate this question, students use create graphs using...

http://tiee.esa.org/vol/v2/issues/data_sets/cedar_creek/abst...
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