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- =Ecological Core Concepts -- Interspecific interactions [X]
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What are the Impacts of Introduced Species?
In this Issue, students will examine published data that address the ecological consequences of introduced species. Activities engage students in data analysis and hypothesis testing, and will increase their understanding of the complexities of ecological phenomena. This Issue focuses on ecological consequences of introduced species using several case studies - zebra mussels, brown tree snakes,...
Publisher: EcoEd Digital Library
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Impact of Cowbird Brood Parasitism on an Avian Community
This data set can be used to determine the effect cowbird brood parasitism has on a songbird population. It includes notes for students as well as instructions for faculty.
Publisher: EcoEd Digital Library
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Energy Balance and Trophic Status in Fish
In this activity, students work with a dataset to investigate energy balance in animals that have different feeding behaviors (diurnal/nocturnal) and diets (e.g., carnivore/detritivore).
Publisher: EcoEd Digital Library
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A community of wildflowers growing in a restored prairie in southwestern Wisconsin.
A community of wildflowers growing in a restored prairie in southwestern Wisconsin. The community pictured was open to foraging by meadow voles (Microtus pennsylvanicus), resulting in vegetation dominated by species that voles typically do not consume, particularly black-eyed Susans (Rudbeckia subtomentosa). In contrast, experimental plots that excluded voles were dominated by plant species that...
Publisher: EcoEd Digital Library
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http://www.esajournals.org/doi/abs/10.1890/03-5182
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Do Antbirds Help or Hinder Army Ants?
In this activity, students examine the nature of the interaction between army ants and ant-following birds. Ant-following birds benefit from the relationship by staying just ahead of the ants and capturing prey animals that are disturbed by the ants. While early studies suggested that the birds' foraging might in turn benefit the ants, it is possible that the birds remove prey that the ants would...
Publisher: EcoEd Digital Library
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