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PREDATOR AND ABIOTIC EFFECTS ON HATCHING PHENOTYPE AND SURVIVAL OF ARBOREAL FROG EGGS WITH IMPLICATIONS FOR PHYTOPLANKTON

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.

Identiferoai:union.ndltd.org:vcu.edu/oai:scholarscompass.vcu.edu:etd-2717
Date01 May 2009
CreatorsHite, Jessica
PublisherVCU Scholars Compass
Source SetsVirginia Commonwealth University
Detected LanguageEnglish
Typetext
Formatapplication/pdf
SourceTheses and Dissertations
Rights© The Author

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