DOI
https://doi.org/10.25772/TFD8-E568
Defense Date
2009
Document Type
Thesis
Degree Name
Master of Science
Department
Biology
First Advisor
James Vonesh
Abstract
Historically studies have focused on either the terrestrial or aquatic environments independently. However, these systems are inherently linked through numerous pathways including organisms with complex life cycles. Both abiotic factors and predators of these organisms can influence connections by changing the number of prey moving across habitat boundaries and by changing the phenotype of prey. When the focal organisms are primary consumers, these effects may have important implications for ecosystem processes. My study investigated how terrestrial predators and abiotic factors affect the number and phenotype of herbivorous tadpole inputs into a tropical forest pond. I found that predators and abiotic factors altered survival and timing of hatching and these effects varied temporally. Thus, temporal changes in the relative importance of these threats from abiotic sources and terrestrial predators on prey with complex life cycles may potentially have implications for connections with and food web dynamics in adjacent ecosystems.
Rights
© The Author
Is Part Of
VCU University Archives
Is Part Of
VCU Theses and Dissertations
Date of Submission
May 2009