Undergraduate Thesis Or Project
 

SpanglerSarahE2015.pdf

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https://ir.library.oregonstate.edu/concern/undergraduate_thesis_or_projects/dn39x2299

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  • Galápagos marine iguana population sizes have been declining since first contact with humans.This decline has historically been attributed mainly to predation by invasive species, but additional human-caused threats exist today. My thesis conducts an analysis of the present threats to the species and determines which are the most severe.Modern threats include invasive species, the increasing presence of humans, the potential for foreign pathogens, and the effects of climate change. Specifically, the most severe threats are environmental contamination such as oil spills, oceanic changes due to climate change,and expected increases in the severity of El Niño events. Due to the difficulty of addressing climate change at the local level, conservation of this species should be focused on managing local human activity to prevent predation and chronic stress from other threats.
  • Keywords: Galapagos, conservation, threats, Marine iguana
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file details SpanglerSarahE2015.pdf 2017-07-13 Öffentlich Herunterladen