Non-Genetic Littoraria Fitness: How Size, Environment, and Health Affect Survivorship of Predator Interactions
Abstract
Marsh periwinkles (Littoraria irrorata) have many predators. When they encounter one,
traits of both the periwinkle and its environment should contribute to whether or
not it escapes. A better understanding of how these interactions are affected could
provide greater insight into how changing habitats will affect ecosystem dynamics
in Atlantic salt marshes. By counting the scars from such interactions on periwinkles
hand-collected from several sites in salt marshes near Beaufort, NC, the effect of
the environment (i.e. density and height of vegetation, distance from ocean access)
and the periwinkle’s own non-genetic characteristics (i.e. size/age) on survivorship
were determined. Using Single and Multiple Linear Regression analyses, no correlation
between these features and the rate of scarring was determined.
Type
Honors thesisDepartment
BiologySubject
Littoraria irrorataSporobolus alterniflorus
Spartina alterniflora
Salt Marsh
Duke Marine Lab
Predator/Prey Interactions
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https://hdl.handle.net/10161/25028Citation
Murphy, Thomas (2022). Non-Genetic Littoraria Fitness: How Size, Environment, and Health Affect Survivorship
of Predator Interactions. Honors thesis, Duke University. Retrieved from https://hdl.handle.net/10161/25028.Collections
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