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Office of Undergraduate Research Home » 2019 Undergraduate Research Symposium Schedules

Found 1 project

Poster Presentation 2

1:00 PM to 2:30 PM
Dynamics of Environmentally Independent Decision-Making in Invertebrate Movement Patterns
Presenter
  • Daniel Tibbles, Sophomore, Philosophy, Microbiology, North Seattle College
Mentors
  • Ann Murkowski, Biological Sciences, North Seattle College
  • Kalyn Owens, Chemistry, North Seattle College
Session
    Poster Session 2
  • MGH 206
  • Easel #166
  • 1:00 PM to 2:30 PM

  • Other Microbiology major students (3)
  • Other Biology mentored projects (69)
  • Other students mentored by Ann Murkowski (7)
  • Other students mentored by Kalyn Owens (7)
Dynamics of Environmentally Independent Decision-Making in Invertebrate Movement Patternsclose

The sensory mechanisms by which organisms orient towards potential food prior to initiating movement are well-researched. However, behavioral mechanisms in stimulus-poor environments which determine foraging through seemingly stochastic movement variability or random-walk models remain poorly understood. Existing literature describe analyses of a variety of single-organism emergent movement patterns but do not appear to offer comparative analysis between single- and multi-individual environments nor within degrees of resource availability. We introduce a new analysis of observed fluctuations in spontaneous movement by Caenorhabditis elegans exposed to diverse conditions of competition and resource abundance. We describe a sequence of experiments which quantify the movement patterns of C. elegans through video imaging pattern recognition codified by run-length-time and turn-angle-time in comparison to recursively updating algorithmic position estimation. We expect to observe movement patterned on optimized explore-exploit strategies—such as simple random walk or Lévy flight—with frequency of implementation influenced by both population and resource density.


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