Matching Items (3)
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- All Subjects: ethics
- All Subjects: Uromastyx--Ecophysiology--Kuwait.
Description
This thesis aims to address the ethics of keeping the big cats, such as lions, tigers, and leopards, in zoos. It is a practice that has generated some controversy in light of scientific studies reporting stress among wide-ranging animals in captive enclosures, as well as in the context of wider discussions in animal welfare and conservation ethics in zoos. A driving question for this project, therefore, was "What are the arguments for and against keeping large felids in zoos/captivity?" This thesis examines the historical and current ethical approaches to evaluating the ethics of maintaining big cats in zoos. Due to many of the big cat species listed as endangered species on the IUCN redlist, the species-centered approach to zoo ethics is becoming the common viewpoint, and, as a result, zoos are deemed ethical because of their contribution to ex situ conservation practices. Further, the ethical arguments against zoos are minimized when the zoos provide suitable and appropriate enclosures for their large felids. Of course, not all zoos are created equal; the ethics of zoos need to be evaluated on a case-by-case basis, but in general, it is ethical to maintain big cats in zoos.
ContributorsZeien, Krista Marie (Author) / Minteer, Ben (Thesis director) / Smith, Andrew (Committee member) / Ellison, Karin (Committee member) / Barrett, The Honors College (Contributor) / Department of Chemistry and Biochemistry (Contributor) / School of Life Sciences (Contributor)
Created2014-05
Description
Bottlenose dolphins, or Tursiops truncates, have captured the attention of humans for centuries leading people to keep them in captivity. However, people's love and an increase in knowledge for these creatures have sparked many ethical debates on whether dolphins should be kept in captivity. In this paper, I discuss the different dimensions of bottlenose dolphin captivity focusing on the physiological, psychological, ecological and ethical concerns raised when comparing captive to wild bottlenose dolphins. In an analysis of the scientific literature, I found that captive bottlenose dolphins experience negative physical and psychological effects, including a shorter life span and a decrease in brain size. They also engage in more risky and harmful behaviors. Preexisting brain structures in bottlenose dolphins indicate enhanced emotional processing possibly leading to a more difficult life in captivity. Furthermore, modeling of bottlenose dolphin social networks have found that removal of dolphins from existing populations have negative repercussions for ecological communities, particularly effecting present and future pods due to their complex social systems called fission fusion societies. Furthermore, removal can have a deleterious effect on the environment due to their role as top predators. Available data suggest that bottlenose dolphins should be classified as non-human persons due to their cognitive abilities such as self-awareness, intentionality, creativity, and symbolic communication. This moral classification demands significant human duties and responsibilities to protect these cetaceans. Due to their similarities to humans, these results suggest that keeping bottlenose dolphins in captivity is ethically questionable and perhaps unjustifiable as captivity violates their basic rights.
ContributorsCoonrod, Sarah Mae (Author) / Gerber, Leah (Thesis director) / Smith, Andrew (Committee member) / Minteer, Ben (Committee member) / Department of Psychology (Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05
Description
Desert environments provide considerable challenges to organisms because of high temperatures and limited food and water resources. Accordingly, desert species have behavioral and physiological traits that enable them to cope with these constraints. However, continuing human activity as well as anticipated further changes to the climate and the vegetative community pose a great challenge to such balance between an organism and its environment. This is especially true in the Arabian Desert, where climate conditions are extreme and environmental disturbances substantial. This study combined laboratory and field components to enhance our understanding of dhub (Uromastyx aegyptius) ecophysiology and determine whether habitat protection influences dhub behavior and physiology.
Results of this study showed that while body mass and body condition consistently diminished as the active season progressed, they were both greater in protected habitats compared to non-protected habitats, regardless of season. Dhubs surface activity and total body water decreased while evaporative water loss and body temperature increased as the active season progressed and ambient temperature got hotter. Total body water was also significantly affected by habitat protection.
Overall, this study revealed that, while habitat protection provided more vegetation, it had little effect on seasonal changes in surface activity. While resource availability in protected areas might allow for larger dhub populations, unprotected areas showed similar body morphometrics, activity, and body temperatures. By developing an understanding of how different coping strategies are linked to particular ecological, morphological, and phylogenetic traits, we will be able to make more accurate predictions regarding the vulnerability of species. By combining previous studies pertaining to conservation of protected species with the results of my study, a number of steps in ecosystem management are recommended to help in the preservation of dhubs in the Kuwaiti desert.
Results of this study showed that while body mass and body condition consistently diminished as the active season progressed, they were both greater in protected habitats compared to non-protected habitats, regardless of season. Dhubs surface activity and total body water decreased while evaporative water loss and body temperature increased as the active season progressed and ambient temperature got hotter. Total body water was also significantly affected by habitat protection.
Overall, this study revealed that, while habitat protection provided more vegetation, it had little effect on seasonal changes in surface activity. While resource availability in protected areas might allow for larger dhub populations, unprotected areas showed similar body morphometrics, activity, and body temperatures. By developing an understanding of how different coping strategies are linked to particular ecological, morphological, and phylogenetic traits, we will be able to make more accurate predictions regarding the vulnerability of species. By combining previous studies pertaining to conservation of protected species with the results of my study, a number of steps in ecosystem management are recommended to help in the preservation of dhubs in the Kuwaiti desert.
ContributorsAl-Sayegh, Mohammed (Author) / DeNardo, Dale (Thesis advisor) / Angilletta, Michael (Committee member) / Smith, Andrew (Committee member) / Sabo, John (Committee member) / Majeed, Qais (Committee member) / Arizona State University (Publisher)
Created2017