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Thèses sur le sujet « Wildlife risk »

Auteur : Grafiati

Publié le 2 juin 2025

Mis à jour le 31 juillet 2025

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1

Xu, Ying. "Optimal Wildlife Reserve Site Selection with Spatially Correlated Risk." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/32168.

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As more emphasis is put on biodiversity conservation, how best to select a system of protected areas for wildlife conservation is an issue of great importance. There is a rich economics literature on the reserve site selection problem. However, most economic studies assume the independence of risks that affect wildlife species, leaving the issue of spatially correlated risk largely unexplored. This study contributes to the literature in twoaspects. First, this study incorporates spatially correlated risk, into a reserve site selection model. And second, this study incorporates heterogeneous s

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2

Cleveland, Shawn M. "HUMAN PREDATION RISK AND ELK BEHAVIOR IN HETEROGENEOUS LANDSCAPES." The University of Montana, 2010. http://etd.lib.umt.edu/theses/available/etd-04282010-103245/.

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Elk (Cervus elaphus) are increasing in fragmented landscapes that result from exurban human development throughout western North America. This problem is increasing human-wildlife conflicts and represents a significant new challenge to wildlife managers. Elk hunting must be intensively managed, if allowed at all, to reduce public relations problems. For example, the Montana Department of Fish, Wildlife & Parks has focused three hunts on a rapidly growing (~11% annually) elk herd in the wildland-urban interface (WUI) of Missoula, Montana, USA. Their goals were to reduce population growth rate,

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3

Downing, Beatrice Catherine. "Disruption and disease : how does population management affect disease risk in wild bird populations?" Thesis, University of Exeter, 2017. http://hdl.handle.net/10871/29259.

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Despite the ubiquity of wildlife management, from reintroductions and supplemental feeding to culling and habitat destruction, very little is known of the effects of management practices on species’ social dynamics. Species’ social structure has the potential to affect not only behaviour and evolution but also the transmission of information or disease. Understanding the effects of population management on social behaviour and organisation is a key step in understanding these species’ ecology. This thesis examines the differences between individuals’ roles in the social structure and what this

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4

Allen, Katherine M. Allen. "Wildlife Value Orientations in Context: Using Experimental Design to Explain Acceptability of Lethal Removal and Risk Perceptions toward Wildlife." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1557234262868932.

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5

Fielding, Carolyn Anne Carleton University Dissertation Geography. "Wildlife rabies and urban expansion; environments of risk in Ottawa- Carleton." Ottawa, 1986.

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6

Cheng, Yi-Ru. "Differential growth of body components among coexisting passerines in response to nest predation risk." The University of Montana, 2009. http://etd.lib.umt.edu/theses/available/etd-01132009-180702/.

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Environmental sources of mortality can exert strong selection pressures on growth strategies across taxa. Studies of growth responses need to consider multiple body components because components can compete for resources during growth in an integrated growth strategy. However, such studies are lacking and little is known about the extent to which body components may differ in their growth responses to environmental selection pressures. Theory predicts that growth of body components with relatively higher advantages for survival should be prioritized. For example, increases in time dependent mo

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7

Gerber, Leah R. "Risk analysis and use of stochastic population models for determining Endangered Species Act status of North Pacific marine mammals /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/5457.

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8

Johnstone, Kyla Chloe. "Behavioural mechanisms of detection bias in applied ecology and wildlife management." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/24944.

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Detecting animals during wildlife surveys underpins the validity of outcomes for pest control, conservation and research. Most surveys rely on animals deciding to engage with a device, hoping the reward outweighs any perceived danger. Animal personality, however, can shape risk-reward decisions by individuals, potentially driving heterogeneity in detection probability and undermining sampling reliability. In this thesis, I investigated personality as a mechanistic driver of detection bias and examined interactions between personality and the risk-reward properties of different survey methods.

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9

Coccon, Francesca <1984&gt. "Wildlife strike risk assessment : development of new methodologies in two International Italian airports." Doctoral thesis, Università Ca' Foscari Venezia, 2013. http://hdl.handle.net/10579/4657.

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Aircraft collisions with wildlife, hereafter wildlife strikes, are a growing threat to civil aviation safety. Of these wildlife strikes, bird-aircraft collisions (hereafter birdstrikes) are of major concern because of the strike frequency and associated damage. Importantly, these wildlife-strike statistics reflect an increasing risk to aviation safety due to the considerable increase of air traffic and growth of the civil aviation industry, demographic explosion of synanthropic bird species and their habituation to live in human-modified habitats and to exploit food sources deriving from human

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10

Grunberg, Wolfgang. "Modeling deforestation risk in the Maya Biosphere Reserve, Guatemala." Thesis, The University of Arizona, 2000. http://hdl.handle.net/10150/278736.

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The tropical forest of Guatemala's 21,130 square kilometer Maya Biosphere Reserve and buffer zone is being impacted by deforestation due to an increase of the local population and establishment of over 200 new settlements over the last 20 years. Existing geographic information system databases and remote sensing data were used to determine how much of the observed deforestation could be explained by three factors: roads, human settlements, and soil quality. Each factor was analyzed separately using spatial and statistical analysis methods. These factors were then combined to create a final def

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11

Seiler, Andreas. "The toll of the automobile : wildlife and roads in Sweden /." Uppsala : Dept. of Conservation Biology, Swedish Univ. of Agricultural Sciences, 2003. http://epsilon.slu.se/s295.pdf.

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12

Hartley, Matthew. "The use of qualitative risk analysis methods to facilitate decision making in the management of health and welfare in wildlife." Thesis, University of Chester, 2018. http://hdl.handle.net/10034/621541.

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This thesis is composed of a series of papers, all of which have been published in peer reviewed publications. The papers use the recognised process of qualitative risk assessment in a range of scenarios in the field of wildlife health and welfare in both in situ and ex situ environments. Chapter 1 discusses the challenges faced regarding availability of empirical data in field of wildlife and zoological health and welfare and justifies the exploration of techniques to assist with decision making. The development of risk analysis and its integration with risk management and risk communication

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13

Rusk, Monica Kirsten 1967. "Selenium risk to Yuma clapper rails and other marsh birds of the lower Colorado River." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/278053.

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I estimated the risk of selenium toxicity to endangered Yuma clapper rail and other marsh birds of the lower Colorado River (LCR). I collected sediment, invertebrates, Virginia rails, and least bitterns from 4 locations within the LCR valley, in May-August 1990, and collected additional bird species from 1 of the sites in April 1991. I analyzed the samples for selenium and other trace elements. Selenium accumulated in the backwater marshes of the LCR and was uniformly distributed among the backwaters sampled. Selenium increased 1-16X between successive trophic levels, however, selenium levels

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14

CHINCHIO, ELEONORA. "DISEASE RISK ASSESSMENT OF INVASIVE ALIEN SPECIES." Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/821735.

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Increased global trade and travel have led to a rise in the number of invasive alien species (IAS), i.e. species introduced by humans in geographic areas where are not naturally found, worldwide. Despite the recognized role of wildlife, as well as of wildlife translocations, in the emergence and re-emergence of infections of public health significance, IAS remain mainly studied for their environmental impacts, and their disease risk towards humans and animals is still largely neglected by health professionals. The main aim of this thesis is therefore to cover this gap by setting the ground

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15

Cooney, Erin E. "The role of risk perceptions in hunter support for deer density reduction as a chronic wasting disease (CWD) management strategy in Wisconsin /." Link to full-text, 2008. http://epapers.uwsp.edu/thesis/2008/Cooney.pdf.

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Thesis (M.S.)--University of Wisconsin--Stevens Point, 2008.<br>Submitted in partial fulfillment of the requirements of the degree Master of Science in Natural Resources (Wildlife), College of Natural Resources. Includes bibliographical references.

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16

Pisani, Jorge Marcelo. "Pesticide impact on non-target wildlife in irrigated crops: simulated impact of cholinesterase-inhibiting pesticides on white-winged doves in the Lower Rio Grande Valley of Texas." Diss., Texas A&M University, 2003. http://hdl.handle.net/1969.1/5835.

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I present a simulation model that should be a useful tool for risk assessment of the impact of insecticide inhibitors of cholinesterase (ChE) applied in irrigated agricultural fields on non-target wildlife. I developed the model as a compartment model based on difference equations (ÃÂt = 1 hour) and programmed with StellaÃÂ® VII software. Conceptually the model is compartmentalized into six submodels describing the dynamics of (1) insecticide application, (2) insecticide movement into floodable soil, (3) irrigation and rain, (4) insecticide dissolution in water, (5) foraging and insecticide

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17

Kearns, Brian Vance. "Patterns and pathways of lead contamination in mottled ducks (Anas fulvigula) and their habitat." Diss., Kansas State University, 2015. http://hdl.handle.net/2097/19062.

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Doctor of Philosophy<br>Department of Biology<br>David A. Haukos<br>Mottled ducks (Anas fulvigula) are dabbling waterfowl species native to coastal wetlands of the Gulf of Mexico of the United States and Mexico. Although closely related to common waterfowl species such as the mallard (A. platyrhynchos) and American black duck (A. rubripes), the mottled duck exhibits unique behavior, mainly in its life history as a non-migratory species. As such, because of population declines caused by predation, habitat destruction, and environmental contaminants, this species requires specialized conservat

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18

Agan, Suzanne W. "The Human Dimensions and Spatial Ecology of Poaching and Implications for Red Wolf Survival." Antioch University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=antioch1598015337868726.

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19

Vroegop, John. "Nature Connectedness & Winter Camping : A Combination of Quantitative and Qualitative Approaches." Thesis, Linköpings universitet, Nationellt centrum för utomhuspedagogik (NCU), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-120253.

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A growing body of research indicates that nature connectedness should be an important component of environmental education programs as emerging empirical evidence shows a correlation between connectedness to nature and environmentally responsible behaviour. Despite an increased interest in further examination of the human-nature relationship, research is lacking in terms of specific factors or conditions that influence nature connectedness. In this study, a mixed methods approach was employed to quantitatively assess the impact winter camping had on nature connectedness and then qualitatively

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20

Myer, Mary Gwyneth. "Characterizing the Decision Process of Land Managers when Managing for Endangered Species of Fire Dependent Ecosystems: The Case of the Kirtland’s warbler (Septophaga kirtlandii Baird)." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1339715533.

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21

Payne, Ariane. "Rôle de la faune sauvage dans le système multi-hôtes de Mycobacterium bovis et risque de transmission entre faune sauvage et bovins : étude expérimentale en Côte d’Or." Thesis, Lyon 1, 2014. http://www.theses.fr/2014LYO10040/document.

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La tuberculose bovine causée par Mycobacterium bovis (M. bovis) est une zoonose multi-hôtes. Outre les bovins, elle peut être transmise à des populations sauvages variées dont certaines peuvent entretenir l'infection et/ou la retransmettre aux bovins, pouvant empêcher leur assainissement. Les conditions de persistance de M. bovis dans les populations sauvages ont été étudiées dans différentes régions du monde, mettant en lumière des statuts épidémiologiques variables selon les espèces et les contextes géographiques, cynégétiques et zootechniques. Notre objectif était de déterminer le rôle des

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22

Derrane, Sarah. "Assessing Risks to Indigenous and Non-Indigenous Values in Forest Management." Thesis, University of Ottawa (Canada), 2003. http://hdl.handle.net/10393/26317.

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23

Rea, Christopher L. "Fate and Transport of Avian-Associated Pathogens in Western Lake Erie Beaches." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1385999641.

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24

Chabot, Dominique. "The rise of unmanned aircraft in wildlife science: a review of potential contributions and their application to waterbird research." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=123049.

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The field of wildlife research and management tends to benefit from technological innovations such as remote sensing techniques that help to overcome the many challenges of studying and monitoring wild, free-ranging animals and their habitats. A new variety of remote sensing devices, unmanned aircraft systems (UAS), has recently become available for public and commercial use, promising to offer further support to wildlife science. Although a growing variety of preliminary efforts to apply UAS in the discipline have been undertaken, the technology is yet to gain any significant traction in prac

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25

Broekhuis, Femke. "Niche segregation by cheetah (Acinonyx jubatus) as a mechanism for co-existence with lion (Panthera leo) and spotted hyaena (Crocuta crocuta)." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:b49a3d35-1b89-4c38-91c5-10330589b2be.

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Intraguild competition and predation have been recognised as important ecological factors influencing the population dynamics of carnivores. The effects of these interactions are often asymmetrical due to a size-related dominancy hierarchy. However, it has been suggested that competitively subordinate carnivores can minimise the costs of predation and competition through spatial and temporal avoidance. Here I investigate the ecological and behavioural mechanisms by which cheetahs (Acinonyx jubatus) coexist with competitively stronger lions (Panthera leo) and spotted hyaenas (Crocuta crocuta).

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26

Burnett, Elizabeth Anne. "The Influence of Farmer Stress and Hardiness on Adoption of Best Management Practices in the Maumee Watershed." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1405694911.

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27

Ussa, Melissa. "Evaluating the Effects of Sea Level Rise on Sea Turtle Nesting Sites: A Case Study of the Archie Carr National Wildlife Refuge." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/848.

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The purpose of this thesis was to determine the extent of sea level rise (SLR) impact on sea turtle nesting beach habitat on Archie Carr National Wildlife Refuge (NWR) as well as impacts on management strategies. The Archie Carr NWR is of exceptional importance due to the high density of Loggerhead, Leatherback, and Green sea turtles that nest there in the summer months. GIS data provided by the Archie Carr NWR and various SLR scenarios, provided by both the Intergovernmental Panel on Climate Change (IPCC) as well as leading scholars, were used to determine inundation area loss across the Refu

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28

Hodge, Joshua B. "Hurricane Storm Surge Sedimentation on the McFaddin National Wildlife Refuge, Texas: Implications for Coastal Marsh Aggradation." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849751/.

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This study uses the storm surge sediment beds deposited by Hurricanes Audrey (1957), Carla (1961), Rita (2005) and Ike (2008) to investigate spatial and temporal changes in sedimentation rates on the McFaddin National Wildlife Refuge in Southeast Texas. Fourteen sediment cores were collected along a transect extending from 90 to 1230 meters inland from the Gulf Coast. Storm-surge-deposited sediment beds were identified by texture, organic content, carbonate content, the presence of marine microfossils, and Cesium-137 dating. The hurricane-derived sediment beds are marker horizons that facilita

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29

Gastineau, Adrienne. "Patrons spatiaux et processus écologiques de déprédation par les grands carnivores : le cas de l’ours brun et des troupeaux domestiques en Europe de l’Ouest." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS111.

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Les conflits entre l'homme et la faune sauvage constituent une menace pour les espèces en voie de disparition, ce qui met en péril sa conservation à l’échelle mondiale. En particulier, préserver les grands carnivores pose le défi de la coexistence avec les humains. En Europe, le chevauchement entre activités humaines et habitats naturels est inévitable. Ce chevauchement induit des interactions parfois négatives avec les grands carnivores. La prédation sur les troupeaux domestiques, ou déprédation, est l'un des principaux facteurs limitant leur acceptation. La déprédation est un conflit très ré

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30

Allard, P. J., Gary S. (Gary Seymour) 1966 Mann, Randy F. Baker, C. A. Higgins, and Bruce B. Dawson. "Strategy for wildlife ecological risk assessment at Teck Cominco’s Kimberley operations, BC." 2004. http://hdl.handle.net/2429/8711.

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The overall objective of this predictive wildlife ecological risk assessment (ERA) is to assess contaminant-related risks after implementation of Teck Cominco's closure plan for its Kimberley Operations. The first stage of the wildlife ERA, problem formulation (PF), was conducted to identify the most likely sources of potential risks for the site to help focus subsequent ERA investigations. This paper summarizes key findings of the PF and presents an overview of the main components of the wildlife ERA. A separate paper (Mann et al., 2004) addresses potential risks to the aquatic environment.

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31

Van, Wyk Gysbert Johannes. "Analysing higher-value wildlife as an investment alternative / Gysbert Johannes van Wyk." Thesis, 2015. http://hdl.handle.net/10394/15728.

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Recent developments in the breeding of higher-value wildlife have seen the emergence of an alternative investment opportunity being offered to potential investors. Through this opportunity, investors can enter a lucrative market which has proven to date to be a highly profitable alternative, generating even higher than above average returns. The objective of this study can be summarized as three-fold: to determine whether higher-value wildlife can be considered as an investment alternative, to contextualize higher-value wildlife as an investment alternative and finally to establish guidelines

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32

Suraci, Justin. "Fear in wildlife food webs: large carnivore predation risk mediates the impacts of a mammalian mesopredator." Thesis, 2016. http://hdl.handle.net/1828/7198.

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Mounting evidence suggests that large carnivores regulate the abundance and diversity of species at multiple trophic levels through cascading top-down effects. The fear large carnivores inspire in their prey may be a critical component of these top-down effects, buffering lower trophic levels from overconsumption by suppressing large herbivore and mesopredator foraging. However, the evidence that the fear of large carnivores cascades through food webs has been repeatedly challenged because it remains experimentally untested. My collaborators and I exploited a natural experiment – the presence

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Odunuga, Babawale. "New Social Media, Risk Communication, and Wildlife Health: Implications for Indigenous Communities of Saskatchewan and Alberta, Canada." 2014. http://hdl.handle.net/1993/23693.

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The study involved Indigenous communities of Saskatchewan and Alberta which are adversely impacted by industrial activities in their traditional territory. The overall goal of this study is: the assessment of social media in risk studies among Indigenous communities of western Canada. The methods used were: interviews, focus group discussion (FGD), and net-mapping. Results showed that the majority of youths communicated around risk using new social media (NSM) in event of risk outbreak, while Indigenous Elders, communicated face-to-face and via cell-phone. Results also showed that youths use T

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Garcia, Diaz Pablo. "Alien vertebrate risk assessment and invasion pathway modelling." Thesis, 2017. http://hdl.handle.net/2440/114484.

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Alien species are a key driver of the ongoing biodiversity crisis. Changing patterns in the number and identity of transported alien species, and recent changes in the importance of different pathways for transporting alien species (e.g., recent decline in the role of acclimatisation societies vs. the increase in importance of the pet trade), means that there is a novel pool of alien species available for introduction. There is a pressing need to evaluate the biosecurity risks posed by these emergent alien species and their pathways. In this thesis, I focussed on unravelling the patterns and p

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Moxley, Jerry Hall. "The Abundance and Behavioral Ecology of Cape Cod Gray Seals Under Predation Risk From White Sharks." Diss., 2016. http://hdl.handle.net/10161/12167.

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<p>The ultimate goal of wildlife recovery is abundance growth of a species, though it must also involve the reestablishment of the species’ ecological role within ecosystems frequently modified by humans. Reestablishment and subsequent recovery may depend on the species’ degree of adaptive behavior as well as the duration of their functional absence and the extent of ecosystem alteration. In cases of long extirpations or extensive alteration, successful reestablishment may entail adjusting foraging behavior, targeting new prey species, and encountering unfamiliar predatory or competitive re

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Gervais, Jennifer A. "Evaluating space use and pesticide exposure risk for burrowing owls in an agricultural environment." Thesis, 2002. http://hdl.handle.net/1957/32502.

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Large burrowing owl (Aihene cunicularia) populations exist in areas of intensive agriculture in California, and pesticide exposure has been identified as a potential threat to population persistence. I evaluated breeding season use of agricultural fields by adult male owls using radio telemetry, and examined egg contaminant residues to estimate population-level effects on reproduction and survival. Reproduction and survival were estimated annually, and an index of diet was inferred from pellet samples. A total of 11 adult males in 1998 and 22 in 1999 were successfully radio-tracked. Mean fixed

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Herman, Dewald Gustav. "An analysis of security measures implemented on commercial private game reserves in Limpopo." Diss., 2020. http://hdl.handle.net/10500/26768.

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South Africa presently experiences high levels of crime daily. Although crime is accepted as an everyday occurrence for its citizens, it affects the economy of the country. This study analysed security measures implemented on Commercial Private Game Reserves (CPGRs) in Limpopo and the impact of crime thereof. CPGRs are enclosed areas containing various species of fauna and flora. Visitors from domestic and foreign origins visit these reserves to enjoy nature and its tranquillity. This study analysed the security measures to determine their effectiveness for CPGRs. The study further explored t

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Bank, Marie-Louise. "Wildlife voluntourism : the rise with Generation Z." Master's thesis, 2021. http://hdl.handle.net/10400.14/35509.

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Voluntourism is an alternative form of tourism that involves volunteering to contribute to a community or wildlife cause. Understanding why Generation Z volunteer for wildlife projects is essential for planning and implementing strategies that take advantage of the increasingly valuable expertise and resources that volunteers bring to conservation programs. This thesis is hence essential to providing a more complete image of the factors that influence Gen Z volun- tourists' attitudes and perceptions. A qualitative method including semi-structured interviews was chosen to understand the d

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