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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Bushmeat hunting, retaliatory killing, habitat degradation and exotic species as threats to Fosa (Cryptoprocta ferox) conservation

Merson, Samuel David January 2017 (has links)
Large carnivores are in global decline, chiefly resultant of anthropogenic persecution, habitat reduction and disturbance. Fosas represent Madagascar's largest carnivore, occupying much of the island's forest. This thesis examines the threats of bushmeat hunting, retaliatory killing, habitat alteration and exotic species using sociological and remote-sensing methodologies. Habitat degradation was not associated with reduced fosa occupancy, indicating some resilience within large, contiguous forests. However, competition with exotic species (cats, dogs) was associated with reduced fosa occupancy and potential temporal shifts towards greater nocturnality. Poor households were more likely to consume protected species. Conversely, wealthier households consumed more fish and eel. This pattern is reflected in Malagasy reported taste preference to consume domesticated animals and certain legally hunted wild species. Protected areas were not associated with reduced protected species consumption. Fosas' predation was a major cause of rural poultry mortality. Predation was more likely to occur in deciduous forests, in the dry season, during the evening. Fosa predation, and lower education was associated with negative Malagasy attitudes. Wealthy households, and those that had experienced fosa predation were most likely to retaliatory kill a fosa. Strategies to safeguard fosas' long-term persistence should seek to improve domestic husbandry, build robust coops with the use of watchdogs, promote education, and reduce exotic species abundance.
12

Human-wildlife Conflict and Ecotourism : Comparing Pongara and Ivindo National Parks in Gabon

Avomo Ndong, Sandy Steven 10 April 2018 (has links)
Human-wildlife conflicts around protected areas are important issues affecting conservation, especially in Africa. In Gabon, this conflict revolves around crop-raiding by protected wildlife, especially elephants. Elephants’ crop-raiding threaten livelihoods and undermines conservation efforts. Gabon is currently using monetary compensation and electric fences to address this human-elephant conflict. This thesis compares the impacts of the human-elephant conflict in Pongara and Ivindo National Parks based on their idiosyncrasy. Information was gathered through systematic review of available literature and publications, observation, and semi-structured face to face interviews with local residents, park employees, and experts from the National Park Agency. This thesis argues that the impacts of human-elephant conflict are more severe in Ivindo compared to Pongara National Park due to their specific characteristics. To effectively address this human-elephant conflict, an adaptive management strategy is needed. This adaptive management strategy should integrate conservation, livelihood security, and combine to the specific characteristics of each park.
13

Investigating Methods to Reduce Black Bear (Ursus americanus) Visitation to Anthropogenic Food Sources: Conditioned Taste Aversion and Food Removal

Signor, Kari D. 01 December 2009 (has links)
Conflicts between humans and black bears (Ursus americanus) jeopardize the safety of both humans and bears, especially when bears become food-conditioned to anthropogenic food sources in areas such as campgrounds. Interest in using non-lethal techniques, such as aversive conditioning, to manage such conflicts is growing. I conducted a captive experiment at The Wildlife Science Center in Minnesota and two field experiments in the La Sal Mountains, Utah, to investigate the effects of taste aversion conditioning using thiabendazole (TBZ) with a novel flavor cue and food removal on black bear food consumption and visitation to human food sources. In 2007, I conducted food trials with 6 captive black bears (3 control, 3 treatment). Controls received 1 kg baked goods scented with a peppermint-canola oil mixture and treatments received 1 kg baked goods also scented with a peppermint-canola oil mixture but mixed with 10-20 g TBZ. In the 2007 field experiment, I baited 24 field sites with 300 g of baked goods during a baseline phase for approximately 3 weeks. Half of these sites were then treated with 10 g of TBZ and camphor during a treatment phase for 4 weeks. In 2008, I baited 22 sites with 300 g of baked goods during a baseline phase for approximately 4 weeks. I then removed food and discontinued baiting at half of the sites for 4 weeks. Infrared cameras and barbed-wire hair snags were established at field sites to document bear visitation. I did not establish taste aversion in treated bears in captivity and bears fully consumed food in the majority of trials. Treating food supplies with 10 g TBZ and camphor flavor did not significantly reduce bear visitation (P = 0.615) or food consumption at field sites (P = 0.58). However, I observed a significant reduction in bear activity at sites where food was removed (P = 0.006). Potential reasons for my failure to reduce bear visitation using thiabendazole include insufficient conditioning, reluctance of bears to desist in investigating sites that previously contained untreated food, and masking of a treatment effect due to continued encounters of sites by new individuals.
14

Coexistence : the human/grizzly bear interface in a rural community of British Columbia

Sanders, Gillian 13 June 2013 (has links)
Environmental Education is becoming increasingly important as human populations expand into wildlife habitat, often resulting in human/wildlife conflicts. Meadow Creek British Columbia has experienced a long history of conflicts with grizzly bears resulting in significant bear mortalities. This qualitative research investigates human attitudes and behaviours relating to human/grizzly bear coexistence in this area. Twenty eight participants with diverse values contributed to in-depth interviews and a focus group that revealed perceived barriers and potential solutions to human/grizzly bear coexistence. Results show increased attitudes of tolerance since mid-2000s and that on-going support is needed to enable bears and humans to coexist. This research suggests coexisting with grizzly bears in Meadow Creek may serve to improve the linkage function of this area, making coexistence important to local grizzly populations. This work may be a useful study for communities in areas of high human/bear conflicts or in linkage areas between threatened populations of wildlife.
15

Habituation to Auditory Stimuli by Captive African Elephants (Loxodonta Africana)

Goodyear, Sarah Elizabeth 01 May 2015 (has links)
Elephants are cognitive species that exhibit many types of learning. Associative, social, and insight learning have been investigated with elephants, but one of the simplest forms, habituation, has not. As an individual learns that a stimulus is neither harmful nor beneficial, it will decrease its response to the stimulus through the process of habituation. Elephants possess a well-developed sensory system and may habituate to stimuli that could be used for enrichment and/or management. The aim of this study was to examine the habituation process of elephants in response to repeated presentations of two auditory stimuli –buzzing by a disturbed beehive and the sound of banging on pots and pans, as these sounds invoke alert and avoidance behaviors in wild elephants as part of humanelephant conflict mitigation. I hypothesized that elephants would initially exhibit strong reactions to both sounds, but these responses would diminish over repeated trials. I also hypothesized that their responses to the bee sound would decrease more slowly than to the pot/pans sound because bee buzzing represents a biological cue that a threat is nearby. This study was conducted using four female African elephants (Loxodonta africana) at the Nashville Zoo. Elephants received each stimulus for a 10-day period. On the first sound presentation, the elephants reacted by exhibiting distress, avoidance, and vigilance behaviors. Over repeated presentations, the elephants stopped responding to the stimuli, suggesting habituation had occurred. They also seemed to generalize their habituation between the first and second sound, resulting in a faster habituation to the second sound. Although a preliminary study, the results suggest that elephants learn which stimuli are non-threatening and subsequently stop responding to them, most likely through habituation. Specifically, the elephants habituated to bee buzzing and banging pots and pans, two deterrents used to stop elephants from entering farmlands and eating crops. Habituation is a major concern for the development of effective human-wildlife conflict mitigation and zoo enrichment programs. The results from this study indicate that habituation is an important learning process that should be considered during the implementation of captive and wildlife management, even for highly intelligent species such as elephants.
16

The bear as barometer: the Japanese response to human-bear conflict

Knight, Catherine Heather January 2007 (has links)
The Asiatic black bear, or 'moon bear', has inhabited Japan since pre-historic times, and is the largest animal to have roamed Honshu, Shikoku and Kyushu since mega-fauna became extinct on the Japanese archipelago after the last glacial period. Despite this, the bear features only rarely in the folklore, literature and arts of Japan's mainstream culture. This relative cultural invisibility in the lowland agrarian-based culture of Japan contrasts markedly with its cultural significance in many upland regions where subsistence lifestyles based on hunting, gathering and beliefs centred on the mountain deity (yama no kami) have persisted until recently. However, in recent decades the bear has been propelled from its position of relative cultural obscurity into the forefront of mainstream society's attention. As more and more of the bear's habitat is destroyed or degraded through forestry and development, the bear is increasingly encroaching onto human territory in its search for food, leading to pestilence and bear attacks. This thesis examines the nature of the contemporary human-bear relationship in Japan, dominated by human-bear conflict, or the so-called 'bear problem'. To better understand the contemporary response to the bear, the thesis explores the historical relationship of the Japanese with both the bear and its habitat, the forested uplands. The thesis further seeks to understand how cultural, historical, social and geographic factors influence a society's response to wildlife conflict and what can be learnt from the Japanese example which can be applied to the understanding of human society's response to wildlife conflict elsewhere.
17

Conflicts Between Humans And Wolf: A Study In Bozdag, Konya Province, Turkey

Tug, Senem 01 October 2005 (has links) (PDF)
Canis lupus is one of the most important but least studied species of Turkish fauna, however, livestock depredation and recently increased number of publications on attacks on humans intensifies human-wildlife conflict. In this study, wolf depredation is studied in Bozdag in the province of Konya where conflicts between wolves and livestock holders are well known. The study site holds &gt / 50,000 sheep and covers 9 villages and a small town. A total of 13 shepherds are interviewed in 2004 and 2005 to reveal husbandry methods and vulnerability of livestock to wolf attacks in Bozdag. Each flock is attended by a shepherd and several livestock guarding dogs (LGDs), and experiences 1.96 wolf attacks per year, on average, independent of flock size. The flocks attended by less LGDs experience less attacks and therefore, the quality of the LGDs &amp / #8211 / not their numbers- are more important. Confining sheep in corrals that are attended by a shepherd and good quality LGDs appears to be the most effective husbandry method to decrease depredation. Human attitude towards wolf is also assessed and the perception of wolf is generally negative / 8 out of 11 shepherds are in favour of the eradication of this carnivore. Publicized wolf attacks on humans are compiled from 21 news sources on the internet and records of wolf rabies are sought from various sources. There were five publicized cases of attacks on humans, no verified records of human death between 2000 and 2005. Rabies stands out as the primary reason of wolf attacks, but it requires further research because proper records are missing.
18

Large Carnivore Occupancy and Human-Wildlife Conflict in Panama

Fort, Jessica Fort 01 May 2016 (has links)
Although Panamá is an important global hotspot for biodiversity, basic information on large carnivore and prey distributions as well as habitat needs is largely unknown. Wildlife studies in Panamá have been limited to populations located in protected areas along the Panamanian Atlantic Mesoamerican Biological Corridor (PAMBC) and have not considered potentially important refuge habitats located outside the PAMBC. Further, research on human attitudes and perceptions associated with large carnivores, such as jaguars (Panthera onca), is limited in Panamá. My study was conducted in 2 disparate study areas: Cerro Hoya National Park (CHNP), an isolated remnant of tropical rainforest habitat 125 km from the PAMBC that straddles the Veraguas and Los Santos provinces on the Azuero Peninsula; and Serranía de Pirre (SP), a comparative study area in the PAMBC located in Darién National Park (DNP). I used remote cameras to investigate patterns of site occupancy and detection probabilities, as affected by habitat and anthropogenic influences, for 3 species of felids (jaguars, pumas [Puma concolor], and ocelots [Leopardus pardalis]) and 2 species of peccaries (white-lipped [Tayassu pecari] and collared [Pecari tajacu]). In addition, I assessed attitudes and perceptions of rural Panamanians about jaguars and the conservation of CHNP and DNP via oral surveys. Site occupancy did not appear to differ between study areas for any felid or peccary, but detection frequencies and detection probabilities of focal species were overall higher in SP than CHNP. For collared peccaries, probability of detection was a function of survey year, study area, and Julian date, and estimated occupancy was higher in CHNP than SP. For ocelots, probability of detection was significantly higher in SP than CHNP when an ocelot was detected in a previous occasion. For pumas, detection increased with Julian date in CHNP but was seasonally unaffected in SP. Puma occupancy was higher closer to river systems. For jaguars, detection probability decreased with Julian date, increased with number of camera days per occasion, and was higher in SP than CHNP. Jaguars were more likely to use habitat at higher elevations in both study areas. White-lipped peccaries were never detected in CHNP, which may indicate their local extirpation in this region of Panamá. Regarding surveys measuring perceptions of rural people, factors such as gender, level of education, land ownership, and number of cattle affected knowledge and attitudes towards jaguars and criticism towards park management. Additionally, there was a higher frequency of human-jaguar conflict in SP than CHNP and coyotes (Canis latrans) were the most commonly reported threat to livestock in CHNP. My research elucidates previously unknown distribution limits of jaguars and coyotes in the Azuero Peninsula, as well as providing evidence for the potential local extirpation of white lipped peccaries in CHNP. I provide wildlife managers with improvements for survey design of future occupancy studies in the Neotropics. Further, my research provides targeted areas to prioritize for future wildlife conservation efforts and mitigation efforts concerning human-jaguar conflict.
19

Impact and Perception of the Human-Wildlife Conflict; a Spatial Case Study of Management and Strategies in Skåne County

Bastholm, Isabelle, Fransson, Victoria January 2019 (has links)
This study seeks to find the best strategies to be implemented to decrease the human-wildlife conflict (HWC). Other countries management practises and strategies to manage HWC was reviewed, in order to identify if Skåne county in Sweden could pursue improvements. To be able to tackle HWC, a greater understanding of people's ethical views were investigated and their perceptions of improvements were documented and researched. This study aims to provide quantitative data with web based surveys and spatial mapping of impacts from the HWC in Skåne county. It further aims to map the values that affects society caused by the HWC, and to answer the following questions; What are the optimal strategies in order to decrease HWC in Skåne? Where can cost effective improvements be implemented? This was both answered in the interviews conducted, and the gathered data. Optimal strategies that were detected where Skåne county can improve were; extensive implementations of ecoducts and passages for game, reducing the use of fencing, translocating, compensation actions, increase hunting opportunities and an installment of further game warning systems. Ethical views of different respondents’ towards the HWC were also analyzed. The online survey revealed that there were a difference in respondents views of HWC, based on if they were environmental science students, hunters or the general public. The gathered data and result, stated that the general public and the environmental students/workers were categorized in the ethical views of ecocentrism. The hunters ethical views could not be determined, due to the inconsistency of the answers of the questions. By showing differences and similarities in ethical views and how to manage HWC, strategies and incentives can more easily be adapted, to reach a better community base that can work together to reduce the HWC. Because of the different knowledge of the respondent groups and of their ethical views, there needs to be a broader incentive program that can maintain different interests of people and reduce conflicts, as well as preserve the biological state of ungulates in Skåne. In the online survey, all of the respondents agreed that the stakeholder, most suitable to handle and manage the problematics regarding HWC, is the government/county government. Other stakeholders that were believed suitable for managing HWC in Skåne, were organisations, for-profit companies and lastly, private self-acting individuals. Furthermore, the respondents beliefs on coexistence between humans and wildlife were also studied. The data showed that the general public and the hunters believed that future were to be positive, and the environmental students/workers believe the HWC would still be a problem in the future.
20

Urban Alaskan Moose: An Analysis of Factors Associated with Moose-Vehicle Collisions

McDonald, Lucian R. 01 August 2019 (has links)
As human populations continue to grow and encroach into wildlife habitats, instances of human-wildlife conflict are on the rise. Increasing numbers of reported wildlife-vehicle collisions (WVCs) provide tangible evidence of anthropogenic impacts on wildlife as well as increasing threats to human health and safety. Increasing WVCs are of particular concern, especially those involving large-bodied ungulates such as moose (Alces spp.), because of the increased risk of property damage, personal injuries, and human fatalities. Motorists directly involved in a WVC are at risk of injury or mortality, but other motorists are also put at risk due to road obstructions and traffic congestion associated with WVCs. Mitigating these impacts on motorists and wildlife requires investigation into the temporal and spatial factors leading to WVCs. In Alaska, most WVCs involve moose (Alces alces), a large bodied ungulate capable of threatening human life when involved in a collision. Each moose-vehicle collision (MVC) in Alaska is estimated to cost $33,000 in damages. With this analysis, I analyzed the plethora of factors contributing to moose and motorist occurrence on the road system and motorist detection based on a historical dataset of MVC reports throughout Alaska from 2000 to 2012 and a dataset of field-derived measurements at MVC locations within the Matanuska-Susitna Borough from 2016 to 2018. My first analysis focused on the daily and annual trends in MVC rates as compared to expected moose and human behavioral patterns with a focus on guiding mitigation strategies. Fifty percent of the MVCs reported between 2000 and 2012 occurred where the commuter rush hours overlapped with dusk and dawn in winter, and the artificial lighting differences between boroughs suggest a link between artificial lighting and reduced MVCs. To focus more specifically on roadside features contributing to MVC risk, I collected and analyzed local and regional scale land cover and road geometry data at reported MVC sites in an area with a rapidly growing human population. I compared these data to similar data collected at random locations near documented MVC sites and at locations where moose that were fitted with global-positioning system (GPS) transmitters crossed highways. I used generalized additive mixed models to delineate which of the variables impacted the risk of both moose road crossings and MVCs. Moose road crossings were influenced by approximations of spatial, seasonal, and daily moose density as well as the proportion of deciduous-coniferous and coniferous forest in the area and the number of possible corridor or land cover types surrounding the site. The best MVC risk model was described by expected seasonal and daily changes in moose density and local scale measurements, including the sinuosity of the road, the height of vegetation near the road, and the angle between the road surface and the roadside. Together this information should guide transportation and urban planners in the Matanuska-Susitna Borough to use roadside vegetation removal, seasonal speed reduction, improved lighting strategies, dynamic signage, or partnerships with mobile mapping services to reactively reduce MVCs and to focus future road planning in areas with lower moose abundance and build roads that increase visibility and detection distances in areas where moose are common.

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