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Vision & Change (for higher education) -- Use quantitative reasoning

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View Resource Comparisons of Mycorrhizal Properties from Two Host Tree Species

In this lab experiment, students learn about ectomycorrhizal (ECM) fungal properties associated with two host tree species to better under understand symbioses in general and gain experience using soil sampling and mycorrhizal field methods. Students will learn in more depth about terms and concepts related to symbioses (e.g. mutualisms, coevolution, host specificity) and about specific...

 

Publisher: EcoEd Digital Library

View Resource Quantifying behavior – learning observational protocols in the classroom

One of the challenges for teachers without a lab, is how to allow students to observe natural animal behavior directly. The freely available videos by the International Wolf Center are ideal for observation of naturalistic interactions, and last for long enough (5-15 minutes) to enable the practice of different observational techniques. This learning activity introduces novices to the...

 

Publisher: EcoEd Digital Library

View Resource How do pawpaws affect tree regeneration?

In this study, students investigate whether and how much the native understory shrub pawpaw (Asimina triloba) may affect tree regeneration in a forested habitat. During one lab period in the field, they collect data on the densities of tree seedlings and saplings under varying densities of pawpaws. During a second lab period in a classroom, they test whether tree densities are lower under...

 

Publisher: EcoEd Digital Library

View Resource Processes that Regulate Patterns of Species and Genetic Diversity

During a single lab period, students simulate colonization and drift in artificial communities to understand how these processes affect distributions of biodiversity in small versus large communities with varying degrees of isolation. Plastic bins represent islands, and are situated to represent different degrees of isolation. Ziploc bags of candy represent individuals in the communities and...

 

Publisher: EcoEd Digital Library

View Resource How many species are there? Determining species richness

One of the simplest questions an ecologist can ask about a site is how many species live there. The answer is important for basic researchers and managers alike, but can be deceptively hard to obtain. This exercise introduces students to the issues surrounding the estimation of species richness, and can be completed in a single three-hour lab session. Students will learn to collect data in the...

 

Publisher: EcoEd Digital Library

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