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(4 classifications) (27 resources)

Ecological Core Concepts -- Interspecific interactions

Discipline Specific Core Concepts Classifications
Competition (23)
Mutualism, symbiosis, and commensalism (7)
Parasitism and disease (8)
Predation and herbivory (21)

View Resource Exploring the Lotka-Volterra Competition Model with Two Species of Parasitoid Wasps

In this Experiment, students design an experiment to examine intraspecific and interspecific competition using two species of parasitoid wasps (Nasonia vitripennis and Melittobia digitata). Students examine the effect of both types of competition on reproductive output in the wasps. One or two females are placed on a single host: alone, or a competitor of the same species (intraspecific), with a...


Publisher: EcoEd Digital Library

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 immigrant to invader and how humans act as dispersal agents is explained. Attributes of invaders, effects on native community, global ecological and economic consequences, prevention, and long term...


Publisher: EcoEd Digital Library

View Resource 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

View Resource 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

View Resource 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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