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Vision & Change (for higher education) -- Systems: Living systems interconnected and interacting

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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 Patterns and process in Landscape Ecology: Physical template, biotic interactions, and disturbance regime

Ecological processes and patterns interact at various scales across landscapes. Spatially explicit consideration of pattern and process can better inform ecological questions. This Figure Set introduces students to the variability in scales of pattern and process and to the fundamentals of Landscape Ecology. TIEE

 

Publisher: EcoEd Digital Library

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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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View Resource Issues in Ecology, Issue 16: The Role of Landscape Connectivity in Planning and Implementing Conservation and Restoration Priorities

Many conservation efforts focus on protecting and enhancing connectivity to offset the impacts of habitat loss and fragmentation on biodiversity conservation, and to increase the resilience of reserve networks to potential threats associated with climate change. Identifying effective approaches for maintaining and restoring connectivity poses several challenges, and our understanding of how...

 

Publisher: EcoEd Digital Library
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