Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"population viability analysis"”.
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Population Viability Analysis of Swift fox (Vulpes velox) at the Badlands National Park
… non-target poisoning, and harvest. A remnant population occurred on USDA Forest Service lands in Fall River County, South Dakota. Following the successful reintroduction of the species in Canada (1983), a reintroduction program was initiated in BNP in the year 2003. Free-ranging swift fox from …
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Genetic Structure and Demographic Analysis of Key deer (Odocoileus virginianus clavium)
… study), homogeneous, and have a female-biased population of approximately 900 deer. I used 985bp of the mitochondrial cytochrome b gene and 12 microsatellite loci to test two hypotheses: 1) if the Moser Channel is a barrier to gene flow, I should expect that Key deer are differentiated and have …
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Changes in nesting numbers and breeding success of African White-backed Vultures in northern Botswana
… yet there is no published information on their population trends or their breeding success in this country. However, in recent years within Botswana and neighbouring countries there have been multiple incidents of mass poisonings, which have resulted in the deaths of thousands of White-backed …
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Does the Karoo population of Martial Eagles (Polemaetus bellicosus) have the potential to buffer the species? national decline?
… However, in South Africa in recent decades, a population has become established in the Karoo, a largely treeless and semi-arid biome not considered favoured by the species in the past. This shift was likely to have been facilitated by electricity infrastructure, specifically large pylons, on …
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Landscape utilisation by an introduced pack of African wild dogs (Lycaon pictus) in eastern Botswana
… contributed to a rapid decline in this species’ population size and distribution during the 20th century. Following a thorough population viability analysis in the late 1990s the decision was taken to manage the South African population as a metapopulation. This involved the reintroduction of …
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An Interdisciplinary Examination and Assessment of Current Conservation Initiatives for Javan Gibbons (Hylobates moloch)
… simulation program, VORTEX, to create an updated Population Viability Analysis illustrating the long-term population viability of Javan gibbons with regards to current threats they face in the wild (habitat loss and the illegal pet trade); I investigated the illegal selling of gibbons through an …
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Life and death in a corn desert oasis: reproduction, mortality, genetic diversity, and viability of Illinois' last Eastern Massasauga population
… species are forced into small often fragmented populations at increased risk of extirpation. Reptile species are thought to be experiencing wide-spread declines, the extent of which may be underestimated due to lack of long-term data for most species. Snakes, especially venomous species, are …
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Population Dynamics of Piping Plovers (Charadrius melodus) on the Missouri River
… and predation are threatening many shorebird populations worldwide. While habitat preservation often is preferable, sometimes habitat needs to be restored or created in order to stave off immediate declines. The Great Plains population of piping plovers (Charadrius melodus) was listed as …
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An investigation into the decline of the bearded vulture : Gypaetus barbatus in southern Africa
… 15 years of research on the Bearded Vulture population of southern Africa using various approaches to quantify the decline in the species, investigate the mechanisms of this decline and determine the most appropriate management actions necessary to attain the short-term species’ conservation …
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Modeling the health of free-living Illinois herptiles: an integrated approach incorporating environmental, physiologic, spatiotemporal, and pathogen factors
… impacted the stability of many wildlife populations. The health of wildlife populations influences their ability to recover from a complex array of anthropogenic and natural stressors. Promotion of positive health status may improve conservation outcomes in wild animals. However, wildlife …
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Conservation in a changing world: assessing the conservation status of an agriculturally adapted species, the blue crane
… there are concerns that the Western Cape population may be decreasing, given the many threats in intensive agricultural landscapes. This thesis assesses the conservation status of the Blue Crane, with particular focus on the Western Cape wheatlands. In Chapter 1 I frame the topic, review …