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Sink Or Ecological Trap For Tree Swallows In Central Minnesota?, James T. Pathoulas, Nicole E. Noyes
Sink Or Ecological Trap For Tree Swallows In Central Minnesota?, James T. Pathoulas, Nicole E. Noyes
Celebrating Scholarship & Creativity Day (2011-2017)
Background: An ecological trap is typically defined as a low-quality habitat, incapable of sustaining a population, which is preferred over a high quality habitat. Ecological traps may lead to species extinction in populations with 1) strict habitat requirements 2) minimal information about the habitat, and 3) low population size. Tree Swallows (Tachycineta bicolor) meet the former two of these criteria.
Methods: We monitored Tree Swallow (TS) nest boxes (n=90) at two ecologically similar sites A and B with similar occupancy rates. Site B has lower reproductive fitness —suggestive of an ecological trap. Binary logistic regression was used to …
A Hands-On Activity To Introduce The Effects Of Transmission By An Invasive Species, Barbara May
A Hands-On Activity To Introduce The Effects Of Transmission By An Invasive Species, Barbara May
Biology Faculty Publications
This activity engages students to better understand the impact of transmission by invasive species. Using dice, poker chips, and paper plates, an entire class mimics the spread of an invasive species within a geographic region. The activity can be modified and conducted at the K-16 levels.