The extent to which predators regulate prey populations remains a subject of debate. Yet, when predator control is employed as a management strategy, it is often assumed that predators can and do regulate prey populations. From 2011 through 2015, I monitored the demography and space use of coyotes (Canis latrans) and cougars (Puma concolor) on Monroe Mountain in Fishlake National Forest, Utah as part of a larger collaboration investigating the impacts of coyote aerial control on mule deer (Odocoileus hemionus) neonate survival. My primary objective was to assess the impacts of anthropogenic regulation on the respective populations and identify any cascading effects relevant to mule deer management. To meet this objective, I established a monitoring program for both predators by deploying radio-telemetry collars (VHF and GPS) on each, documented predation events, established surveys for small mammals and lagomorphs to monitor primary prey populations during deer parturition (June – August), and collected data on the location and demographic composition of winter-removed coyotes. I analyzed these data primarily in a community-based, animal movement and resource selection framework permitting the integration of data from multiple sources. When evaluating coyote aerial removal as a management strategy, I identified a spatial dependency in the ability to match removals with indices of deer recruitment as Wildlife Services Operations personnel were primarily limited by terrain and tree cover. Thus, matching treatment with deer fawning was highly variable with only a small number of sites where removals were effective. In addition, I found that coyotes selected for sites with the highest densities of lagomorphs while avoiding areas with a high probability of encountering cougars. Coyotes did not select for mule deer fawning sites, although individual coyotes that occupied resource-poor home ranges were more likely to do so. Cougars strongly selected for mule deer high use areas throughout much of the year, only switching to elk (Cervus elaphus) during the cougar harvest season (i.e., winter). Data from cougar kill site investigations match the observed patterns in cougar space use. My results suggest that predator-prey processes are multi-dimensional and dynamic through time, which likely contribute to the lack of resolution regarding the efficacy of predator control and the regulatory potential of predators in general.

<p><strong>“CSR and political consumption – a study of Nike’s and Puma’s CSR-reports”</strong></p><p>The purpose of this dissertation is to examine if political consumption has influenced multinational corporations to improve their Corporate Social Responsibility reports and policies more, than a company who has not been a target for political consumption.</p><p>This dissertation is a content analysis of Nike’s and Puma’s first (Nike 2001, Puma 2001) and latest (Nike 2007/09, Puma 2007/08) CSR- reports. Archie Carroll’s model of Corporate Social Responsibility is used as theoretical framework in this study. The model is used to focus on four areas within CSR; economic, legal, ethical and philanthropic. There has been delimitation in these four areas. Considering the economic area the study focuses on minimum wage, the legal area is focusing on minimum age, the ethical area is focusing on dialogue with stakeholders and control of suppliers and the philanthropic area is focusing on non-profit organization, projects and programs.</p><p>The results indicate that political consumption in the case of Nike, has no impact on the company to improve their CSR-report but they have improved their policy against CSR. In comparison to Nike, Puma has changed more from the first report until the latest. This could be because it is more generally popular to work with CSR today. Compared to Puma, Nike has changed more considering their policy against CSR. </p><p><em>Keywords: Archie Carroll’s Pyramid of Corporate Social Responsibility, Change, Corporate Social Responsibility Report, Multinational Corporations, Nike, Policy, Political consumption, Puma</em></p>

This paper describes a hand-eye system we developed to perform the binpicking task. Two basic tools are employed: the photometric stereo method and the extended Gaussian image. The photometric stereo method generates the surface normal distribution of a scene. The extended Gaussian image allows us to determine the attitude of the object based on the normal distribution. Visual analysis of an image consists of two stages. The first stage segments the image into regions and determines the target region. The photometric stereo system provides the surface normal distribution of the scene. The system segments the scene into isolated regions using the surface normal distribution rather than the brightness distribution. The second stage determines object attitude and position by comparing the surface normal distribution with the extended-Gaussian-image. Fingers, with LED sensor, mounted on the PUMA arm can successfully pick an object from a pile based on the information from the vision part.

Cougar (Puma concolor) predation has been identified as being one of several factors contributing to the decline of mule deer (Odocoileus hemionus) throughout the Western United States. In order to better understand how these elusive felines utilize their surroundings and prey, I examined and analyzed cougar predation behavior in North-Central Utah, using global positioning systems (GPS) data from 2002-2010. Twenty-three cougars were fitted with GPS collars and monitored for prey caching behavior. In total 775 potential cache sites were visited and 546 prey remains found. Mule deer comprised the majority of prey at cougar cache sites, but 11 other species were also found. Collectively, adult female mule deer were killed more than any other demographic class. Proportionally there was no difference in the sex or age class of deer killed by cougars in three different population segments, but seasonal differences were found in the number of kills made between cougar groups. Female cougars with kittens had a higher predation rate than males or solitary females, and seasonally more kills were made in the winter vs. summer. Cougars spent an average of 3.3 days on deer kills, and 6.2 days on elk kills. Habitat analyses suggested that cougars preferentially used Gambel oak (Quercus gambelii) over other land cover types when caching prey, as well as selected unburned over burned areas for caching and foraging on prey. These results suggest that cougars utilize dense stands of vegetation cover when stalking and concealing their prey. Wildlife managers may want to consider the use of prescribed burns in areas of high cougar predation on mule deer. This habitat manipulation tool could simultaneously help mule deer populations by reducing the percent of stalking cover afforded to cougars when attempting to kill prey, along with increasing nutrient levels of newly burned foliage and allow for an increased diversity in forb and shrub species available to mule deer.

The projected growth in human population, rapid urbanization, and expansion of structures like highways and canals pose a major threat to the future survival of wildlife, particularly large terrestrial mammals. In many cases, wild animal populations have been restricted to fragmented habitat islands due to anthropogenic developments, endangering them to local extinction. Current and future wildlife conservation and management strategies are leading to the implementation of mitigation measures such as creation of wildlife habitat corridors. In this light, novel and interdisciplinary research methods such as approaches in the field of landscape genetics are proving to be increasingly useful and necessary for assessing the status of wildlife populations and furthering efficacy of conservation programs and management efforts. In this 5-year research study, I review literature in the field of landscape genetics, highlighting studies and their applications toward wildlife conservation over the past decade (2005-2014). I then use a landscape genetic approach to understand the potential impact of natural and human-made barriers in and around the northern Sonoran Desert on one of the widest-ranging mammals in the world, the mountain lion (Puma concolor). I employ recently developed genetic tools to assess the current population genetic status of mountain lions in this region and Geographic Information Systems (GIS) tools to relate observations to landscape features through interpretive maps. I further investigate the utility of GIS and expert-based models in connectivity conservation and suggest validating them with information on genetic relatedness and functional connectivity among mountain lions. Lastly, in many parts of this document, I emphasize the use of these methods and data sharing in conservation planning as well as wildlife management.

No description available.

Mountain caribou, an arboreal lichen-feeding ecotype of woodland caribou (Rangifer tarandus caribou), have been extirpated from much of their historic range. Mountain caribou are federally listed as Endangered by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) and red-listed by the BC government. Habitat loss and fragmentation of old growth forest is the ultimate cause for population declines. Yet, predation, linked to apparent competition, is the proximate cause for high rates of mortality. One of the most imperiled populations resides in the Purcell Mountains of BC, which was experimentally augmented in 2012 with 19 northern caribou from northern BC. The caribou-predator literature predominantly focuses on the relationship between caribou and wolves (Canis lupus) in northern caribou populations. However, cougars (Puma concolor) have been identified as a major predator of Purcells-South (PS) caribou, yet caribou-cougar interactions remain largely unstudied. I evaluated cougar predation risk in space and time on resident and translocated caribou in the Purcell Mountains. To do so, I determined biologically relevant seasons for resident, donor (i.e. not translocated) and translocated caribou, and cougars. I then used these seasons to investigate seasonal patterns of movement and habitat use between the three groups of caribou and cougars. Next I used resource selection functions (RSFs) to estimate habitat based seasonal variation in predation risk. I used these RSFs to compare the seasonal habitat selection and risk to cougar predation between resident and translocated caribou. Five resident caribou seasons and two cougar seasons were defined. Translocated caribou displayed inconsistent movement behavior with no clear seasonal pattern. Resident caribou remained at high elevations year-round and selected for low risk cougar habitat during the calving season at the home range scale and year-round at the landscape scale. Translocated caribou displayed risky behaviour throughout the study period by traveling to mid to low elevations and habitats selected by cougars. Translocated caribou displayed the same general pattern of elevational movement as their northern conspecifics, spending the majority of their time at lower elevations than resident caribou. Of the 19 translocated caribou, 17 (89%) died during the study, six of which were preyed upon by cougars, two by wolves, and the remainder due to accidents or unknown causes. In summary, translocated caribou did not adopt the predator avoidance or habitat selection strategies of resident caribou. I recommend that future efforts to augment small caribou populations use donor caribou experienced with similar predators and that possess comparable seasonal habitat use to the recipient population. However, because most suitable donor populations are declining, a soft-release of captive-reared mountain caribou might be the best option for mountain caribou recovery efforts. / Graduate / 0366 / 0329

An increasing body of evidence points to a key role of endoplasmic reticulum (ER) stress in chronic and acute neurodegenerative diseases. Indeed, markers of ER stress are common features of neurons destined to die in these conditions. In the present study we demonstrate that PUMA, a BH3-only member of the Bcl-2 family is essential for ER stress-induced cell death. PUMA is known to be a key transcriptional target of p53, however we have found that ER stress triggers PUMA induction and cell death through a p53-independent mechanism involving instead the ER stress inducible transcription factor ATF4. Specifically, we demonstrate that ectopic expression of ATF4 sensitizes neurons to ER stress induced apoptosis, and that ATF4-deficient neurons exhibit markedly reduced levels of PUMA expression and cell death. However, chromatin immunoprecipitation experiments suggest that ATF4 does not directly regulate the PUMA promoter. Rather, we found that ATF4 induces expression of the transcription factor CHOP, and that CHOP in turn directly activates PUMA induction. Specifically, we demonstrate that CHOP binds to the PUMA promoter during ER stress and that CHOP knockdown attenuates PUMA induction and neuronal apoptosis. In summary, we have identified a key signaling pathway in ER stress induced neuronal death involving ATF4-CHOP mediated transactivation of the pro-apoptotic Bcl-2 family member PUMA. Protein aggregates and markers of ER stress response have also been observed in dying neurons in several animal models of cerebral ischemia. Therefore, to decipher the significance of the ER stress apoptotic response, we investigate the role of ATF4-CHOP signaling pathway in ischemic neuronal injury. Ischemic stroke results from a transient or permanent reduction in cerebral blood flow in the brain. In spite of much research in trying to develop therapeutic strategies, most clinical trials have failed. These failures demonstrate that effective treatments require a more complete understanding of molecular signals that lead to neuronal death. However, stroke is a complex scenario since distinct mechanisms may involve in rapid and/or delayed neuronal death. The signaling pathways regulating these mechanisms however are not fully defined. Previous studies had suggested that ER stress playing a pivotal role in post-ischemic neuronal death. Yet, the relevance of ER stress signals was not fully known in ischemic neuronal injury. Accordingly, this thesis research attempts to explore the functional role of ER stress -inducible pathway, ATF4-CHOP axis, in different models of neuronal death (delayed and excitotoxic cell death) evoked by ischemia. The data indicates that ATF4 is essential in delayed type of death in vitro. In focal ischemia model (tMCAO) ATF4 also plays a role as a mediator of death signal in vivo. However, CHOP function looks more complex, and our data did not support the role of CHOP in ischemic neuronal death.

This thesis analyzes the supervisory control of the PUMA 700 series robot through a remote computer. Supervisory communication carries the control through MARK II controller, common controller for the PUMA robots, to a standard PC, enabling the development of purpose specific control programming without the knowledge of the VAL (Variable Assembly Language), robot-programming language. Using the supervisory communication feature of PUMA, new control software has been developed in which both VAL commands and interactive control commands can be executed simultaneously. The supervisory communication with the control software enables exploitation of third party applications and additional operating system features. The supervisory communication uses the Digital Data Communications Message Protocol (DDCMP). The frame structure of data messages, which is specific to PUMA robots, is fitted into this protocol. The messages embedded into DCMP are actually logical units, having different abilities and features. Data messages are formed with the interactive control software according to execution requests of the user. This thesis explains the implementation of the communication without using the CRC (Cyclic Redundancy Checking) on the remote computer side and the data messages formed with the interactive control software, which also enables the use of sensory inputs (camera, infrared, sound, color information) to be used for the robot motion control.

Maintaining large carnivores in human-dominated landscapes poses a significant conservation challenge. Extirpation is common because of habitat loss or direct persecution. I studied cougar habitat selection and human perception of cougars in west-central Alberta to better understand human-cougar coexistence. Cougars that were exposed to higher levels of development at the home-range scale exhibited less avoidance of anthropogenic features and altered habitat use temporally to accommodate variation in human activity, indicating behavioral resilience to development. Survey results showed that cougars were valued and tolerated by people, provided cougars did not occur near residences. Where human densities are increasing in moderately developed landscapes in west-central Alberta, therefore, human tolerance may currently be more important than habitat change for conserving cougar populations. Tolerance was negatively affected primarily by the risk (real and perceived) cougars pose to people, livestock, and game. Public education to counteract overestimation of risk may increase tolerance. / Ecology