Within-host ecology: Parasitism over a changing landscape Öffentlichkeit
Grippi, Dylan (2010)
Published
Abstract
Abstract
Within-host Ecology: Parasitism over a Changing Landscape
By Dylan C. Grippi
The abundance of within-host ecological interactions is important for framing questions that verify classical examples from the literature. Investigating how these parasite-parasite interactions can be manipulated through their host requires understanding how changes to the host impacts its parasites, and what external forces cause these changes. Habitat disturbance and fragmentation are two such anthropogenic changes than can impact host health. How these external forces potentially impact within-host ecology are explored. As a case study, preliminary data from a small mammal field-collection taken from Kibale National Park, Uganda are examined for two genera of vector-borne haemoparasites, to determine if interactions are altered by habitat disturbance. The aims of this study are to determine parasite prevalence in relation to habitat disturbance, determine if co-infection occurs between these two parasites and, if so, are they interacting, and to evaluate the mechanisms for interaction using ecologically meaningful terms. Shortcomings, necessary considerations, and future works are discussed that will strengthen the field of within-host ecology.
Within-host Ecology: Parasitism over a Changing Landscape
By
Dylan C. Grippi
B.S., University of Arizona, 2008
Advisor: Jacobus C de Roode
A thesis submitted to the Faculty of the
James T. Laney School of Graduate Studies of Emory University
in partial fulfillment of the requirements for the degree of
Master of Science
in Graduate Division of Biological and Biomedical Science
Population Biology, Ecology, and Evolution
2010
Table of Contents
Table of Contents
Preface...1
Chapter 1: Interactions and Disturbance; A Review...7
Introduction...7
Pair-wise Interactions...7
Co-infection: Competition and the Host...17
Habitat disturbance and fragmentation...21
Within-host ecology and disturbance...24
Chapter 2: Vector-born haemoparasites of small mammals: prevalence in Kibale National Park, Uganda in relation to habitat disturbance...26
Introduction...27
Table 2.1...32
Materials and Methods...33
Figure 2.1...34
Figure 2.2...37
Results...39
Table 2.2...42
Figure 2.3...43
Table 2.3...44
Figure 2.4...45
Table 2.4...46
Figure 2.5...47
Table 2.5...48
Chapter 2:
Discussion...49
Acknowledgements...54
Chapter 3: Study of habitat disturbance and fragmentation;
effects on within-host parasite ecology: Future
directions...55
Bibliography...59
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