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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.
311

Frösöns offerträd : En symbios av två kulturer? / The sacrificial tree of Frösö: : A symbiosis of two cultures?

Gillberg, Moa January 2021 (has links)
The sacrificial tree of Frösö: A symbiosis of two cultures? This bachelor thesis deals with the site of what has been interpreted as the remains of a sacrificial tree under the church of Frösö, on the island of Frösö. The found material consists predominantly of animal bones, where a large part has been identified as wild animals such as brown bears, but also a large number of juvenile pigs. Previous research has interpreted the place as an Old Norse place of worship to the Norse god Frey, due to the rich numberof pigs and the islands theophoric name (translated to “The island of Frey”). The unusual wild animals, such as squirrels and red deer have been interpreted as a staging of the ancient world tree Yggdrasil in Norse mythology. The overrepresentation of bones from brown bear however has been debated and is often compared to Sami bear graves. There are some similarities to the bear graves, but the differences that exist needs to be looked at more closely. The aim is to process materials and interpretations in a more holistic way. This is done by discussing various ritual acts, belief system and the choice of place of worship and sacrificial material, then apply this to the findings under the church of Frösö. Since such a large part of the bone material descents from brown bears, the use of bears in various cult practices has also been studied. The aim of this study is to provide new insight and interpretation of which ethnic groups may have used the site, before the church was built.The discussion concludes that a symbiosis is possible in the vicinity of the island, and that it is therefore not unlikely that this also applies to the island of Frösö. The found material under the church of Frösö could be remnants of a bear ceremony, but it could also be remnants from a more economic aspect or simply a mixture of the two. The bear was important financially in the Norse society and a Sami influence, based on their customs and beliefs, is not entirely unlikely given the close contact that existed. This could therefore have been symbolically incorporated into the religious rites.
312

Growth-Form-Analysis and Paleoecology of the Corals of the Lower Mississippian Lodgepole Formation, Bear River Range, North-Central Utah

Miller, Judith M. 01 May 1977 (has links)
The Mississippian (Kinderhookian-Osagean) Lodgepole Formation contains a diverse fossil assemblage. Taxa present include brachiopods, crinoids, gastropods, cephalopods, trilobites and corals. Corals and associated fauna were collected from four localities within the Bear River Range. These are, from north to south, Beirdneau Hollow, Spring Hollow, Leatham Hollow and Porcupine Dam. The well-preserved tabulate and rugose (compound and solitary) corals exhibit a high degree of morphologic variability. The colonial corals of the Lodgepole Formation (particularly Lithostrotionella, Syringopora) exhibit a morphologic gradient from platy to hemispherical forms. The six morphologic categories of colonial corals discussed in this study are identified by mean corallus diameter/corallum height ratios, by the corallite growth direction, and by the shape of the base of the colony. Type I corals have an average mean diameter/height ratio of 3.4; corallites are directed laterally away from the flat base. Type I corals are interpreted to have been adapted to offshore, quiet-water conditions. Type II corals are flattened hemispheres; they have an average mean diameter/height ratio of 4.1. Corallites are directed radially (i.e., with vertical as well as a lateral component) away from the flat colony base. Type II corals are interpreted in this study to have been adapted to shallow, moderately-turbulent environments in which vertical growth was inhibited. Type III corals have an average mean diameter/height ratio of 3.9 and are similar to Type II corals in all respects but one, namely that there is an absence of corallites on the crown of the corallum. This feature is called balding and is interpreted in this study to have been the result of desiccation and subsequent death of coral polyps. Type III corals are thus interpreted to have inhabited very shallow water wherein subaerial exposure of the crown of the corallum occurred during periods of exceptionally low tides. Type IV corals are dome-shaped or slightly-flattened hemispheres; they have an average mean diameter/height ratio of 2.3. Corallites are directed radially away from the flat base. Type IV corals are interpreted to have inhabited a depth zone intermediate between that of Type II corals (within or barely below tidal range) and Type I corals (near or below wave base). The average mean diameter/height ratio of Type V corals is 1.7. Corallites are directed almost entirely vertically away from the rounded-to-conical colony base. Type V corals are interpreted to have inhabited areas where sedimentation rates were sufficiently high to encourage vertical growth to the virtual exclusion of lateral growth. Type VI corals are composite corals, consisting of combinations of hemispherical forms and platy forms. This morphologic type is characterized by a change in the direction of growth during the astogenetic development of colony. The combinations of varying growth forms presumably reflect fluctuations in sedimentation rate.
313

Post-Den Emergence Behavior and Den Detection of Polar Bears (<em>Ursus maritimus</em>) in Northern Alaska and the Southern Beaufort Sea

Robinson, Rusty Wade 01 March 2014 (has links) (PDF)
Pregnant polar bears (Ursus maritimus) construct maternal dens out of snow in the autumn where they give birth to and raise altricial young. In recent years, there has been a decrease in polar sea ice extent and thickness, which has led to changes in denning behavior. One such change in the southern Beaufort Sea (SBS) is that polar bears are selecting maternal den sites on land, rather than on unstable sea ice. This change, coupled with expanding petroleum exploration along Alaska's North Slope, heightens the likelihood of bear-human interactions at maternal den sites. The purpose of this research was to 1) describe polar bears' post-den emergence behavior, establishing a benchmark for comparison to identify behavioral changes associated with climate change and disturbance, and 2) explore factors influencing the efficacy of a currently used den detection method, forward-looking infrared (FLIR). Maternal den sites were observed along Alaska's North Slope from March to April of 2009 and 2010. The mean length of stay at den sites post-emergence was 11.3 ± 7.5 d. The mean date of den emergence was 14 March; abandonment 26 March. Adult females were generally inactive (58.4% out-of-den time) with standing being the most prevalent activity (49.9%). Cubs were generally active (76.7%), playing more than any other activity (45.3%). Bears spent the majority of their time in the den (97.3% for adult females and 99% for cubs) with short bouts of intermittent activity (× = 7 min 42 s). We documented the death of one member of a triplet polar bear litter at its den site. All three cubs showed low activity levels relative to other cubs observed, and one died within one week of den emergence. Necropsy confirmed that the dead cub had a low body weight and was malnourished. Capture later confirmed that the two surviving cubs were also undersized. Triplet litters are often smaller and suffer higher mortality rates than singletons and twins. This cub was not only a triplet but also born following 2 y of record minimum sea ice extent, both of which may have played a role in this cub's death. Concurrent with the den emergence portion of this work, we conducted a separate study to identify limitations and optimal conditions for locating dens using FLIR. We took handheld FLIR images of three artificial dens under varied conditions. We tested variables hypothesized to influence detectability with linear models using a zero-inflated negative binomial distribution. Solar radiation, wind speed, and den wall thickness reduced the likelihood of detecting dens. The negative effect of wind speed on detectability increased with increasing distance. To maximize the efficacy of hand-held FLIR, den surveys should be conducted when solar radiation is <16 w/m2 (night) and when wind speed is <10 km/h (6 mph). Adherence to these guidelines will maximize the protection FLIR can afford to denning bears.
314

Gåtfulla björnen i graven : En studie av björnklor i järnåldersgravar från Gotland / Enigmatic bear in the grave : A study of bear claws in Iron Age graves from Gotland

Jordahl, Jane January 2023 (has links)
Uppsatsen undersöker björnklor upptäckta i järnåldersgravar (ca 500 e.Kr. – 1100 e.Kr.) på Gotland, Sverige. Brunbjörnen har aldrig funnits som en del av i öns fauna, vilket innebär att varje björnklo som upptäcks är ett spår av ett forntida utbyte mellan ön i fråga och omgivande fastlandsområden. Tidigare forskning inom ämnet har mest bestått av sammanställningar av gravkontexter med björnklor. För att ytterligare tolka björnklorna och för att diskutera det möjliga syftet bakom deponeringar i gravar behöver emellertid klor knytas till tillhörande tassar. En vanlig förklaring är att björnklor härstammar från pälsverk. Teorin om päls fungerar dock inte för alla upptäckta klor. Därför syftar uppsatsen till att skapa en metrisk metod genom mätningar av referensmaterial av björnklor. Tanken är att mätmetoden ska användasför att undersöka och tolka arkeologiska fynd av björnklor. Tolkningen av klorna är en viktig del i förståelsen om hur djurresurser nyttjades under förhistorisk tid. / This paper examines bear claws discovered in Iron Age graves (c. 500 AD – 1100 AD) in Gotland, Sweden. The brown bear has never existed as a part in the island's fauna, meaning that every bear claw discovered is a trace of the ancient exchange between this island and the surrounding mainlands. Previous research on the subject has mostly consisted of compilations of the number of grave contexts with bear claws. However, to further interpret bear claws from each burial context and to discuss the possible purpose behind deposition in the grave, claws need to be assessed for associated paws. A common explanation is that bear claws derives from fur. However, the theory of fur does not work for all discovered claws. Therefore, the paper aims to create a metric method through measurements of reference material of bear claws. The idea is that the measurement method could be used to examineand interpret the archaeological bear claws. The interpretation of the claws is an important part of the understanding of how animal resources were used in prehistoric times.
315

Factors Affecting the Distribution of Malayan Sun Bear in Htamanthi Wildlife Sanctuary, Northern Myanmar

Htike, Min Hein 09 August 2023 (has links) (PDF)
To understand the modeling challenges and to examine the important factors considered in Malayan sun bear (Helarctos malayanus) distribution studies, we reviewed 33 peer-reviewed articles published from 2003-2023. These studies used 54 environmental or anthropogenic variable types to investigate the distribution, habitat preference, and home range composition of sun bears. Most variable types are human disturbance (n=4), climate (n=3), topography (n=1), vegetation (n=11), or other ecological factors (n=3). Nevertheless, a number of rarely used variables might also be useful to include in future evaluations (i.e., food abundance), and observational evidence suggests that predator occurrence could also be informative. Importantly, no studies tested the performance of model prediction by using other presence points of the species in a similar or adjacent biogeographical area. In Myanmar, where the bear’s distribution is not well-known, we set up three annual surveys using 120 camera-trap stations in a portion of the Htamanthi Wildlife Sanctuary (HWS) in northern Myanmar during 2016-17 to 2018-19 to identify factors influencing bear distribution. From a total effort of 15,315 trap nights, we obtained 47 independent photo events of sun bears at 16%, 13%, and 9% of the stations each year. We analyzed eight factors potentially influencing the bear distribution and found that the top three ranked models were a combination of elevation, NDVI (Normalized Difference Vegetation Index), distance to water, and slope. The presence of tigers (Panthera tigris) in the area was found to have a positive relation with mean sun bear occupancy. In this study, we tested the prediction performance of the single-season occupancy model with another dataset. We tested the prediction performance of the top six models in the PresenceAbsence Package and calculated the AUC (Area under receiver curved), TSS (True skill statistics), and Kappa scores. The AUC score ranged from 0.5 to 0.6, while the TSS score ranged from -0.001 to 0.28. None of the top six models’ predictions perfectly agreed with the sanctuary-wide survey data. The discrepancies may be due to the limited sample size, the temporal scale of the prediction, and the presence of other ecological factors (e.g., predators, competitors, or food availability) not accounted for in the habitat use prediction. To improve the prediction performance of occupancy models, we recommend that future sun bear surveys increase the number and size of sampling efforts and include ecological covariates such as potential predators when possible.
316

A Dissection of Pacing in Zoo-Housed Polar Bears: How Details of the Behavior Can Suggest Motivational and Causal Factors

Cless, Isabelle T. 02 September 2015 (has links)
No description available.
317

"Back to the land and all its beauty" : managing cultural resources, natural resources, and wilderness on North Manitou Island, Sleeping Bear Dunes National Lakeshore, Michigan

Fredericks, Katelyn V. January 2014 (has links)
Indiana University-Purdue University Indianapolis (IUPUI) / This thesis focuses on the history of human impact on North Manitou Island, Michigan, the management of natural and cultural resources on the island by Sleeping Bear Dunes National Lakeshore, and the often conflicting beliefs and attitudes about wilderness and cultural resources that influenced (and continue to influence) management of the island by Sleeping Bear’s administrators.
318

類股指數領先大盤抑或是大盤領先類股指數?–簡單周期判定法則之應用 / Can Industry Index predict TAIEX, or vice versa?–The application of a simple dating technique

陳怡瑄 Unknown Date (has links)
本文引用Pagan and Sossounovb(2003)針對Bry and Boschan(1971)景氣循環周期判定法修改後的法則,判定大盤與類股指數的牛市、熊市周期。將判定的周期結果畫成圖表,藉由簡單的圖表分析將可明確得知大盤周期與類股周期領先與落後的關係,並應用計量模型估計,找尋能夠顯著預測大盤周期變動方向的類股,或是檢驗大盤周期是否能夠預測類股周期方向;反之亦然。並且比較圖表分析與計量模型估計結果是否一致。 圖表分析與向量自我迴歸模型的實證結果一致,八大類股中,營建、金融、機電、塑化等四類股周期能夠顯著預測大盤周期走勢,其中以塑化類股最具預測能力;而大盤周期皆無法精準預測類股周期走勢。而羅吉斯迴歸模型結果也發現,營建、金融、機電、塑化等四類股周期能夠增加大盤周期走勢的預測機率;同樣的,大盤周期無法影響類股周期走勢的預測機率。
319

The Power of the Tower: Contesting History at Bear Lodge/Devils Tower National Monument

Kramer, Anna Marie 01 January 2016 (has links)
Bear Lodge/Devils Tower National Monument, a spectacular rock formation in northeastern Wyoming, has a multiplicity of meanings, not all of which were fully acknowledged until the 1990s. It is widely known as a geologic wonder, the first national monument, a marker of local and pioneer heritage, and a premier rock climbing area. In the 1980s and ‘90s, however, the National Park Service began to acknowledge that the Tower also holds cultural and historical meaning for the Northern Plains tribes, dating back long before the colonization of the American West. Some of the tribes expressed to the Park Service that they were offended by rock climbers desecrating the Tower, a sacred site, leading the Park Service to seek to compromise between these competing uses of this public land. The controversy over climbing at Bear Lodge/Devils Tower was, and remains, a debate over history, and this thesis examines the historical foundations for the discourses of climbers, local white residents, tribal members, and the Park Service, as these various groups asserted their claims to this public space. This thesis contends that the language used by climbers and local white residents in arguing against the Park Service’s accommodation of tribal cultures and beliefs appropriated the languages of spirituality and tradition used by the tribes, and sought to delegitimize the tribal claims to the Tower. The Park Service is complicit in controlling the discourses surrounding the Tower and erasing the traditions and complex history of the Northern Plains tribal ties to this sacred place.
320

Managing nature, producing cultures : Inuit participation, science and policy in wildlife governance in the Nunavut Territory, Canada

Henri, Dominique January 2012 (has links)
In this thesis, a critical analysis is proposed of the relationships between Inuit participation, science and policy in wildlife governance in the Nunavut Territory, Canada. This analysis situates the emergence of a participatory regime for the governance of wildlife in Nunavut, explores its performance and examines the relations between the ways in which wildlife governance arrangements are currently represented in policy and how they are played out in practice across the territory. To pursue these objectives, this research draws upon a number of theoretical perspectives and methodological strategies poised at a crossroads between environmental geography, science and technology studies, political ecology and ecological anthropology. It combines participant observation, semi-directed interviews and literature-based searches with approaches to the study of actor-networks, hybrid forums and scientific practices associated with Latour and Callon, as well as with Foucauldian and post-Foucauldian analyses of power, governmentality and subjectivity. This analysis suggests that the overall rationale within which wildlife governance operates in Nunavut remains largely based on a scientific and bureaucratic framework of resource management that poses significant barriers to the meaningful inclusion of Inuit views. In spite of their participation in wildlife governance through a range of institutional arrangements, consultation practices and research initiatives, the Inuit of Nunavut remain critical of the power relations embedded within existing schemes, where significant decision-making authority remains under the control of the territorial (or federal) government, and where asymmetries persist with regard to the capacity of various actors to produce and mediate their claims. In addition, while the use of Inuit knowledge, or Inuit Qaujimajatuqangit, in wildlife governance in Nunavut has produced some collaborative research and management endeavours, it has also crystallised a divide between ‘Inuit’ and ‘scientific’ knowledge, generated unresolved conflicts, fuelled mistrust among wildlife co-management partners and led to an overall limited inclusion of Inuit observations, values and beliefs in decision-making.

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