<p dir="ltr">In this dissertation, I explore how human actions (climate change, road salt, land use change, species invasions) interact with and influence morphology, disease, and population dynamics in freshwater organisms (amphibians and aquatic crustaceans). First, I examined how the incidence and timing of disease epidemics in native species (<i>Daphnia dentifera</i>) caused by a generalist parasite (<i>Metschnikowia bicuspidata</i>) influenced the success and impact of an invasive species (<i>Daphnia lumholtzi</i>) in freshwater zooplankton (Chapter 1). In the following chapter, I explored how host-parasite interactions are affected by the interactive effects of multiple environmental stressors, focusing on American bullfrog tadpoles (<i>Lithobates catesbeianus</i>), two of their common parasites (<i>Batrachochytrium dendrobatidis</i> (<i>Bd</i>) and trematode parasites in the family Echinostomatidae), and two common stressors (fluctuating temperatures and sublethal road salt pollution; Chapter 2). Finally, I investigated how the combination of climate (temperature and precipitation) and land use (developed and/or forested area) change have influenced the body size of a common toad (Fowler’s toad, <i>Anaxyrus fowleri</i>) from 1930 – 2020 utilizing museum specimens (Chapter 3). Together, this research establishes how emerging and persistent anthropogenic environmental stressors will interact to affect morphology, disease, and population dynamics in vulnerable freshwater organisms.</p>
| Identifer | oai:union.ndltd.org:purdue.edu/oai:figshare.com:article/26152783 |
| Date | 02 July 2024 |
| Creators | Paradyse Blackwood (18953554) |
| Source Sets | Purdue University |
| Detected Language | English |
| Type | Text, Thesis |
| Rights | CC BY 4.0 |
| Relation | https://figshare.com/articles/thesis/INTERACTIVE_AND_INDIVIDUAL_EFFECTS_OF_ANTHROPOGENIC_ENVIRONMENTAL_STRESS_ON_FRESHWATER_ORGANISMS/26152783 |
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