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    A Geometric Morphometric Analysis of Tail Morphology in the Colombia Spotted Frog, Rana lutieventris

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    2004_MitchellT_THS_000798.pdf (1.488Mb)
    Author
    Mitchell, Tim
    Advisor
    Grant Hokit; Marilyn Schendel; Kyle Strode
    Date of Issue
    2004-04-01
    Subject Keywords
    colombia spotted frog, Rana lutieventris, frogs, geometric morphometries, phenotypic plasticity, dragonfly larvae
    Metadata
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    URI
    https://scholars.carroll.edu/handle/20.500.12647/2957
    Title
    A Geometric Morphometric Analysis of Tail Morphology in the Colombia Spotted Frog, Rana lutieventris
    Type
    thesis
    Abstract
    Phenotypic plasticity is the result of environmental factors interacting with genes to influence the phenotype of individuals. Developing amphibian larvae may be influenced by the presence of tadpole predators. Rana lutieventris tadpoles were reared in the presence of a predator, presence of an injured conspecific, presence of both a mashed conspecific and predator, and a control of no predator or conspecific for a period of six weeks. Photographs were taken weekly to monitor tail growth. The photographs were digitized and the data was analyzed using geometric morphometries. Geometric morphometric software pooled the data, eliminated differences in size, position, and orientation to analyze the shape differences between the tadpoles in these four treatments. The data was statistically analyzed using multivariate analysis of covariance (MANCOVA). All three experimental treatments were found to cause enlarged tails, showing that R. lutieventris has the ability to respond to chemical cues and exhibit phenotypic plasticity.
    Degree Awarded
    Bachelor's
    Semester
    Spring
    Department
    Life & Environmental Sciences
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    • Life and Environmental Sciences Undergraduate Theses

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