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| Autor/in | Keyes, Aislyn Anne Dewathe |
|---|---|
| Titel | Testing and Teaching Network Science for Ecosystem Services |
| Quelle | (2023), (325 Seiten)
PDF als Volltext Ph.D. Dissertation, University of Colorado at Boulder |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Monographie |
| ISBN | 979-8-3795-2921-5 |
| Schlagwörter | Hochschulschrift; Dissertation; Ecology; Biodiversity; Animals; Food; Death; Video Games; Design; Thinking Skills; Skill Development; Prediction |
| Abstract | Human-driven threats are changing biodiversity and impacting ecosystem services (i.e., nature's contributions to society, henceforth 'services'). The consequences of biodiversity change for ecosystems and people are hard to predict because the loss of one species can trigger secondary extinctions of additional species when species interact (e.g., many birds rely on insects for food). However, the consequences of these secondary extinctions for services remain underexplored. I aim to understand how services will respond to species losses and secondary extinctions. First, I extend robustness--a measure of the tolerance of food webs to secondary extinctions--to measure the impacts of secondary extinctions on services. I incorporate 7 services (e.g., waterfowl hunting) to 3 salt marsh food webs and simulate 12 extinction scenarios (e.g., losses of species vulnerable to pollution or ocean acidification). I find that food web and service robustness are highly correlated, and that robustness varies predictably across services. This result suggests that research on food web robustness may contain important insights for understanding and predicting service vulnerability. Next, I review and synthesize our understanding of how food web structure affects robustness, proposing recommendations and outstanding questions for future research. I find that food web structure influences robustness, and that structure-robustness relationships vary depending on the choice of food web structure and methodology used to quantify robustness. Then, I combine these insights about the structure-robustness relationships for food webs and the ecosystem service robustness metric I developed in my earlier work. I develop new predictions about the implications of structure for service robustness, testing them on services in 14 coastal food webs. I find that structure is a worthwhile indicator of service robustness, and that the context of species losses (i.e., which species are lost first) and the type of service affects the relationships between structure and service robustness. Finally, I use the concepts and data that underlie my research to co-develop a video game and educational case study focused on the food web and ecosystem services at Carpinteria Salt Marsh Reserve, finding that the game and case study lesson effectively develop students' system thinking skills. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.] (As Provided). |
| Anmerkungen | ProQuest LLC. 789 East Eisenhower Parkway, P.O. Box 1346, Ann Arbor, MI 48106. Tel: 800-521-0600; Web site: http://www.proquest.com/en-US/products/dissertations/individuals.shtml |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2024/1/01 |
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