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Understanding Introduced Megafauna in the Anthropocene: Wild Burros as Ecosystem Engineers in the Sonoran Desert


Abstract Megafauna species worldwide have undergone dramatic declines since the end of the Pleistocene, twelve thousand years ago. In response, there have been numerous calls to increase conservation attention to these ecologically important species. However, introduced megafauna continue to be treated as pests. This thesis evaluates the extent of this conservation paradox in relation to changing megafauna diversity from the Pleistocene to the Anthropocene and finds that introductions have provided refuge for a substantial number threatened and endangered megafaunal species and has restored generic diversity levels per continent to levels closer to the Pleistocene than the Holocene. Furthermore, this thesis describes a previously unstudied behavior ... (more)
Created Date 2017
Contributor Lundgren, Erick (Author) / Stromberg, Juliet (Advisor) / Wu, Jianguo (Committee member) / Nieto, Nathan (Committee member) / Arizona State University (Publisher)
Subject Ecology / Sociology / Ethics / burro / conservation paradox / ecosystem engineer / introduced species / invasive species / megafauna
Type Masters Thesis
Extent 136 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Masters Thesis Biology 2017
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis
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Description Appendix C
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Description Appendix F