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1
Fraser, Duncan. "Lion Battery Museum." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/5600.
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The idea of space lies at the root of all architecture; architecture is about spatial experience. This thesis is an investigation around the ideas of architectural spatial experience how we experience space and how to construct rich spatial experiences in architecture. The design project revolves around re-imagining the Lion Battery site on the slopes of Signal Hill. The design tests out the theoretical explorations laid out in this document and then incorporates tradtional and parametric approaches in the resolution of the design. The aim of this project is to explore experiential architecture.
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Botha, Charlton. "The Lion Couchant - Architecture of the ontological landscape of Lion Mountain." Master's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/7539.
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This dissertation is focussed on the natural and cultural landscape of the 'Lion Mountain', comprising of Signal Hill and Lion's Head, Cape Town. Based on the earlier theoretical analysis of reading place through a phenomenological approach to landscape of memory, as well the technological analysis of contemporary methods for architectural mapping, both studies serve as a pretext to the dissertation, in so far as to provide tools of engagement and interpretation of the study area to be identified as the "overall site". The resultant findings uncover a rich, highly complex layering of place and the relationships that permeate the various stages of human inhabitation here. These findings provide the platform for tracing the present day evidence of their respective adaptations, and as such, identifies that the role of the landscape, primarily a seasonal place of recreation – in contemporary culture - dissolves within itself muted and often absent representations of its multifaceted history. Thus, the overriding architectural problem questions whether perhaps the true value of this landscape lie in its ability to be understood by its user as much as it is to be enjoyed, beyond its often chaotic usage. The project challenges the customs of both historical narrative and active natural landscape as inherently separate archetypes and proposes the establishment of a framework upon which key significant elements of the narrative, spread across the broader landscape, get developed as a series of spatial episodes with unique supporting programs. The neutrality of everyday life is suggested as the common factor that brings these archetypes into discourse. A network of inter-leading routes then incorporates these interim destinations and their respective histories into a dynamic present. The architectural design of each of these destinations gets expressed through the intimacy of the sensuous qualities of the built fabric and the fragility of natural ecology and its temporal authority. At times delicate influence simply reinforces existing conditions, and at others more extensive persuasion is required to realise the special qualities of each location. Adaptive reuse plays as big a role with programming the existing as it does with modes of production - emphasizing the situatedness of place and experiential embodiment. Such valency in the proposal shifts the prominence of normative associations of "nature reserve" maintenance and management into qualitative public engagement at a much deeper level than what is presently experienced.
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Mo, Cuiyu, and 莫翠瑜. "The Cantonese lion head: the process of making a lion head in Guangzhou." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hub.hku.hk/bib/B50716293.
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The lion dance is a traditional form of Chinese culture with thousands of years of history. From the historical record, the lion dance tradition was started in the Han Dynasty. Similar to the dragon dance, the lion dance is a spiritual activity. It is a symbol that brings good fortune to people. Nowadays, the tradition is practiced in China, particularly in Guangdong Province (廣東省), Fujian Province (福建省) and spread by the Cantonese, together with good fortune, to Asia, the United States and Canada, and even to Mexico and Europe. Wherever there are Chinese, people perform the lion dance to express joy and happiness.
However, after years and events, with such a rapid development, the crafts industry of making lion heads is facing a variety of challenges in China. This dissertation aims to document the crafts, especially the Southern lion head in Guangzhou (廣州). With particular focus on the craftwork of Mr. Zhong Jiachao (鐘嘉超),the Inheritor of Intangible Cultural Heritage awarded by Guangdong Province Government for his work on lion heads, is famous with his craftwork of building lion heads in Guangzhou and overseas.
The purpose of this dissertation is to provide the technical background for the future conservation of the tradition via the documentation and analysis of the heritage significance of making the lion heads. As a cultural tradition, the craftsmanship of the making of lion heads is an intangible heritage to express tangible and intangible socio-historical value within Chinese communities. It aims to conserve the crafts, and to revive and rejuvenate such folk art via the investigation on the lion dance and lion heads.published_or_final_version
Conservation
Master
Master of Science in Conservation
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Mbava, Willard. "Modelling dispersal processes in impala-cheetah-lion ecosystems with infection in the lions." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/11782.
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The study involved the predator-prey interaction of three species namely the predator (Cheetah Acinonyx jubatus), the super-predator (Lion Panthera leo), and their common prey (Impala Aepyceros melampus). The study area is the Kruger National Park. The predator being an endangered species, faces a survival problem. It is frequently killed by the super-predator to reduce competition for prey. The super-predator also scares away the predator o_ its kills. The prey forms the main diet of the predator. The plight of the predator motivated the author to formulate disease and reaction-diffusion models for the species interactions. The purpose of the models were to predict and explain the effect of large competition from the super-predator on the predator population. Important parameters related to additional predator mortality due to presence of super-predator, the disease incidence rate and induced death rate formed the focal points of the analysis. The dynamics of a predator-prey model with disease in super-predator were investigated. The super-predator species is infected with bovine Tuberculosis. In the study, the disease is considered as biological control to allow the predator population to regain from low numbers. The results highlight that in the absence of additional mortality on the predator by the super-predator, the predator population survives extinction. Furthermore, at current levels of disease incidence, the super-predator population is wiped out by the disease. However, the super-predator population survives extinction if the disease incidence rate is low. Persistence of all populations is possible in the case of low disease incidence rate and no additional mortality imparted on the predator. Furthermore, a two-species subsystem, prey and predator, is considered as a special case to determine the effect of super-predator removal from the system, on the survival of the predator. This is treated as a contrasting case from the smaller parks. The results show that the predator population thrives well in the total absence of its main competitor, with its population rising to at least twice the initial value. A reaction-diffusion three-species predator-prey model was formulated and analysed. Stability of the temporal and the spatio-temporal systems, existence and non-existence of stationary steady state solutions were studied. Conditions for the emergence of stationary patterns were deduced. The results show that by choosing the diffusion coeffcient d2 > _D 2 suffciently large, a non-constant positive solution is generated, that is, stationary patterns emerge, depicting dispersal of species. Predators were observed to occupy habitats surrounding prey. However, super-predators were observed to alternate their habitats, from staying away from prey to invading prey habitat. In the investigation, strategies to determine ways in which the predator species could be saved from extinction and its population improved were devised, and these included isolation of the predator from the super-predator.
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Stoyka, Julie. "Bearding the lion, a novel." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0020/MQ52732.pdf.
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Gerber, Amarein Judith. "Adjusting lion diet estimates to assess lion impacts on small prey in Addo Elephant National Park." Thesis, Nelson Mandela Metropolitan University, 2017. http://hdl.handle.net/10948/14311.
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Populations of small prey species (< 92 kg) can be regulated by competition, habitat-mediated responses, climate change, disease and predation. Populations of small prey species have declined in the Addo Elephant National Park Main Camp Section since the reintroduction of apex predators (lion and spotted hyaena). One possible explanation is predation by lion and spotted hyaena. However, small prey species are not generally considered preferred prey items of these predators, hence their contribution to predator diets needs to be explored. Global Positioning System (GPS) cluster analysis has emerged as a viable approach to locate lion kills for lion diet estimation in AENP, however this technique is known to bias diet estimates to large prey species. Understanding the impact of lion predation on populations of small prey in Main Camp therefore requires better estimates of lion diets. This study investigated the potential underestimation of small prey species in lion diet estimates by combining the data from scat analysis and carcasses located at GPS clusters. The adjusted lion diets were then used to investigate if the impact of lion predation could explain declines in small prey, by relating lion prey preferences to prey population trends in Nyathi. Using the results from Nyathi, it could then be inferred whether lions could have been responsible for the declines observed in Main Camp. Six GPS-collared lions provided location data used to construct individual movement paths, along which spatio-temporal clusters of GPS locations (n = 4896) were identified for ground investigation. Carcasses (n = 643) were recorded at the GPS clusters and scats (n = 256) were collected at GPS clusters with or without carcasses. Data from the located carcasses and scat collections were then used to create a history of feeding events for each collared lion in Main Camp-Colchester and Nyathi from a) carcasses alone or b) a combination of scats and carcasses, based on an estimated short and long lion throughout period. Relative prey availability was estimated based on camera trapping in Nyathi in high lion, low lion and no lion use areas, as lions may encounter some prey species more than other prey species. Jacobs’ index prey preference was used to investigate the importance of prey species to lion diets at three landscape scales: 1) Nyathi, 2) lion UD and 3) core lion UD. Lastly, prey population trends were investigated in Nyathi to provide an indication of possible changes in prey populations. Large prey species dominated the adjusted diets of lions in Main Camp-Colchester and Nyathi. However, when comparing the GPS carcass-derived lion diet estimate to the combined lion diet estimate, small prey were underestimated more often than large prey in the GPS carcass-derived lion diet estimate. Missed feeding events were therefore a function of prey body size. In addition, missed feeding events were also representative of the lion diets based on carcasses, with the tendency for species more often consumed to be missed more often in the diet record. However, even though small prey species were underestimated, they represented the minority of species consumed by lions and were predominantly avoided by lions in Nyathi. Lion prey preferences thus did not correlate to the declines in small prey species in Naythi, suggesting other potential drivers are important for small population trends in Nyathi. Lion predation cannot be ruled out as a driver of the decline in small prey species in Main Camp, due to different ecological conditions (e.g. vegetation density) in Main Camp compared to Nyathi, during the observed small prey population declines. Lion prey preferences in Nyathi revealed fine-scale variations in species specific preferences by lions, as well as site-specific differences in prey preferences when compared to published lion prey preference meta-analyses. These findings suggest that metaanalysis studies should be used as a guideline from which hypotheses about local predatorprey interactions can be developed rather than as an absolute measure of prey preference.
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Gibrand, Sara. "Human-Lion Territory : Negotiating Territorial Borders." Thesis, Umeå universitet, Arkitekthögskolan vid Umeå universitet, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-148587.
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This thesis explores the interaction between natural and urban life through mutual recognition, viewing the clash of territorial borders as dynamic conditions rather than exclusion zones. Gir area in India has been investigated as a unique case where humans and lions for centuries have lived together and established a mutual respect. Rasulpara village is used as a local situation to analyze the relationship between humans and animals with the intention to understand how such relationship can be maintained. It has led to the recognition of the in-between as intermediate zones mediating exchange between the two systems. With humans relating to settled form as territorial constrains, the language of architecture becomes a messenger of a respect playing with a time-based system; mediating the balance between safe and unsafe. Learning from the existing relationship of mutual understanding aims to extract lessons for how to intervene in the context and other mediation areas between human and wild. Exploring these attributes through design has shown that built form can act as solid borders to classify and preclude, but also to invite cohabitation by respecting means of existence. Territorial conflicts can then be dealt with more sensitively, thus obtaining the equilibrium within a changing world anchored in traditional knowledge.
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Carr, Jamie Alexandra. "Lion in Summer & Other Beasts." PDXScholar, 2014. https://pdxscholar.library.pdx.edu/open_access_etds/1873.
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Lion in Summer & Other Beasts is an investigation into point of view, place and the fragment. Many of the characters are searching for a sense of home outside of their birthplace, in cities such as New York City, Charleston, Portland and Tel Aviv. Major themes include alienation, love and trauma.
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Kilian, Petrus Johannes. "The ecology of reintroduced lions on the Welgevonden Private Game Reserve, Waterberg." Pretoria : [s.n.], 2005. http://upetd.up.ac/thesis/available/etd-09072005-091726.
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Southworth, Mary Elizabeth. "Wyndham Lewis: the life of the 'lion'." Thesis, Boston University, 1998. https://hdl.handle.net/2144/27779.
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Boston University. University Professors Program Senior theses.PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you.
2031-01-02
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Fowler, Shannon Leone. "Ontogeny of diving in the Australian sea lion /." Diss., Digital Dissertations Database. Restricted to UC campuses, 2005. http://uclibs.org/PID/11984.
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Schwarz, Ingo. "Ein Humboldt-Brief in der Autographensammlung Lion Feuchtwangers." Universität Potsdam, 2006. http://opus.kobv.de/ubp/volltexte/2009/3560/.
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Gegenstand des Aufsatzes ist ein Brief von Alexander von Humboldt, der sich seit 1958 in der Autographensammlung Lion Feuchtwangers befindet. Die inhaltliche Untersuchung des Schreibens förderte neue Erkenntnisse bezüglich der Förderung junger Talente durch Humboldt ans Licht; außerdem konnte der Komponist, Lehrer und Autor Emil Naumann (1827-1888) eindeutig als Empfänger des Briefes identifiziert werden.The paper deals with a letter from Alexander von Humboldt, which has been part of Lion Feuchtwanger's Autograph Collection since 1958. An investigation of the contents of the letter brought to light new details, chiefly of Humboldt's activities in promoting young talents. Emil Naumann (1827-1888), composer, teacher and author, was clearly identified as the letter's recipient.
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Young, Min-Chia Built Environment Faculty of Built Environment UNSW. "The lion in Chinese space and social life." Awarded By:University of New South Wales. Built Environment, 2009. http://handle.unsw.edu.au/1959.4/43802.
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This thesis is a systematic examination from a historical point of view of the rich diversity of forms and images of the lion motif in Chinese space and social life. Drawing on textual, linguistic and archaeological sources, it addresses the fundamental problem inherent in the study of the lion motif in China, that is, why a foreign import was adopted, transformed and assimilated into an existing culture and how it was then widely rendered in various forms and images as though it had been an indigenous image all along. The examination begins with a search for the origins, names for and appearance of the real lion in China and a comparison of this with the images, roles and powers of the ideological lion in the Chinese mind. It proceeds through an investigation into the liking of the ruling class for lions as tomb guardian beasts in their search for a better afterlife. The thesis then focuses on the adoption of the lion motif by ordinary people as a means of approaching the divine and gaining recognition, in the process of which the image of a ferocious beast was gradually transformed into that of a rotund pet. The pet-like ??look?? of the lion came to be associated with various vernacular cultures of Southern China and assumed a unique style during Ming (1368??1644), when the form and image of the animal became a living concept with little emphasis on its physical appearance. In other words, what perpetuated the significant role of the lion in Chinese space and social life was its conceptual image, not its physical shape. Two case studies, one based in Kinmen and the other in Sydney, further demonstrate that the physical appearance of the lion motif has little effect on the power and mechanism of the mighty animal in the Chinese mind. What matters most, when placing the lion motif in front of an entry way, is the reiteration or reenactment of the conceptual image of the lion through symbols, rituals and ??traditional?? beliefs by which this particular animal motif has become an enduring legacy of Chinese communities around the world. The thesis, then, summarises the changes in the lion motif and its transformation from a physical object to a living concept free from image and form constraints as a gradual process of Chinese perception that integrated the real animal with the imagined animal, strange and unfamiliar phenomena, and the dominant and popular cultures. The context of this integration may have been significantly influenced by the bureaucratic metaphor of the ruling class. The lasting meaning and significance of the lion motif, however, is due to the vision and determination of ordinary people, who are as much prone to seeking a comfortable space and the promise of a better life as have been their rulers.
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Lion, Alexander [Verfasser]. "Thermomechanik von Elastomeren : Experimente und Materialtheorie / Alexander Lion." Kassel : Universitätsbibliothek Kassel, 2000. http://d-nb.info/1054303428/34.
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Shehaj, Lisandra <1995>. "Michael Ondaatje's "In the Skin of a Lion "." Master's Degree Thesis, Università Ca' Foscari Venezia, 2021. http://hdl.handle.net/10579/19430.
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This discussion analyses Michael Ondaatje’s In the Skin of The Lion, especially focusing on its two male protagonists, Patrick Lewis and Nicholas Temelchoff, and their inner journeys towards acquisition of subjectivity. To achieve this, the argument will be centred on Patrick and Nicholas, in order to illustrate how their incremental movement from private to communal (and the other way round) symbolic registers facilitates their quest to subjectify themselves within society.
In short, it may be claimed that this dissertation poses three main questions which will ultimately try to be answered: In what way the journeys of Patrick and Nicholas are similar and in what they differ? What was it to be an immigrant? Will the two characters finally free themselves at all of that nationalistic western concept that silences their voices and gain a fuller understanding of the important roles that collective discourse and narrative play in the development of their subjectivity?
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Lion, Jérôme Delabroy Jean. "La hache et l'épée politique et poétique de la guerre chez Victor Hugo, 1870-1878 /." Lille : A.N.R.T, 2004. http://www.univ-lille3.fr/theses/lion-jerome.pdf.
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Dures, Simon George. "Transfrontier lion conservation : applying genetics across time and space." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/61348.
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As global landscapes and habitats become increasingly fragmented under pressure imposed by anthropogenic development, it is essential that we gain a better understanding of species functional responses to such change and the degree of connectivity between populations. I use African lions (Panthera leo) as model species and ask how natural and anthropogenic barriers affect lion dispersal across the multiple geopolitical boundaries of the Kavango-Zambezi Transfrontier Conservation Area (KAZA-TFCA). A better understanding of inbreeding depression, gene flow, loss of genetic diversity and the implications of genetic supplementation are all highlighted by the IUCN Cat Specialist Group as important for guiding future conservation plans. This research will give conservation stakeholders an insight into how these genetic factors can be influenced by the management of landscapes and populations with a view to improving the chances of long-term conservation success. Using genetics to assess functional connectivity, I determine the important isolating mechanisms across the landscape, testing both environmental and anthropogenic drivers, with a view to guiding future management of this mammal. I demonstrate how genetics can reveal unexpected cryptic patterns of gene flow that more traditional methods may miss. Furthermore, I identify patterns of gene flow and dispersal across the landscape to assess the feasibility of the KAZA TFCA to successfully conserve the species. Incorporating DNA from 19th century museum collections, I develop an assessment of how population genetic diversity has changed over time, with respect to human activities, and its relevance to conservation status. The results of the genetic analysis are finally incorporated into a population viability assessment to predict how potential future management actions are likely to affect the persistence of this lion population, one of the last remaining lion strongholds in Africa. The results demonstrate that the lion population is differentiated into two distinct genetic groups, one inhabiting the wetland Okavango Delta and the other inhabiting the surrounding dryland Kalahari. Further genetic substructure divides the population into distinct units, largely corresponding to the Wildlife management zones of the KAZA protected area network and likely a consequence of fragmentation, but which could realistically be reconnected given appropriate management of the intervening habitat matrix. Analysis of the historical samples identifies a considerable decline in the genetic diversity of this lion stronghold corresponding with the arrival of European settlers to the region, and a likely increase in persecution of the species and landscape alteration. Finally, modelling of future management scenarios suggests that continued fragmentation of the area, through increased habitat encroachment or even intensive management interventions such as fencing, will likely lead to a dramatic decline in the population due to the effects of inbreeding depression. Conversely, given the reconnection of the protected area network and therefore the promotion of low-level dispersal, my analysis predicts the long-term persistence of the lion population in this region.
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Lion, Alexander [Verfasser]. "Materialeigenschaften der Viskoplastizität : Experimente, Modellbildung und Parameteridentifikation / Alexander Lion." Kassel : Universitätsbibliothek Kassel, 1994. http://d-nb.info/1054302383/34.
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Marcus, Alan David. "Hookworm infection in the Australian sea lion (Neophoca cinerea)." Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/13606.
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For the Australian sea lion (Neophoca cinerea), an endangered keystone predator that demonstrates high rates of pup mortality and limited population recovery, an understanding of the role of infectious disease in influencing pup health, and how it may contribute towards shaping population demography, is a key knowledge gap. This thesis investigated the taxonomy, epidemiology, clinical impact, and management of hookworm infection in N. cinerea to address the hypothesis that hookworm infection is a significant cause of disease and mortality in this species. Hookworms collected from N. cinerea pups were identified and described as a novel species (Uncinaria sanguinis). Transmammary transmission in the immediate post-parturient period was implicated as the predominant route leading to patent hookworm infection in pups; however, in contrast to the fundamental role that colony substrate appears to play in shaping the epidemiology of hookworm infection in other otariid hosts, this thesis determined that all N. cinerea pups are infected with U. sanguinis irrespective of the type of colony substrate and that the intensity of hookworm infection appears to be influenced by colony-specific seasonal differences in host behaviour. The clinical impact of hookworm infection in pups was quantified and the occurrence of seasonal patterns in health parameters and the magnitude of colony pup mortality were related to the dynamics of hookworm infection. In addition, the effectiveness of ivermectin to eliminate hookworm infection was investigated. This thesis determined that U. sanguinis is an important cause of disease and mortality in N. cinerea; this thesis contributes towards an improved understanding of the role of infectious disease in influencing the health status and population demography of this endangered species, informing conservation management and providing a solid foundation for further investigations of the effect of disease on the health status of free-ranging species.
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Gales, Nicholas John. "Breeding biology of the Australian sea lion Neophoca cinerea." Thesis, Gales, Nicholas John (1995) Breeding biology of the Australian sea lion Neophoca cinerea. PhD thesis, Murdoch University, 1995. https://researchrepository.murdoch.edu.au/id/eprint/53087/.
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The breeding biology of the Australian sea lion was investigated throughout its geographic range between December 1987 and February 1992. Sea lions breed on at least 51 islands, 28 in Western Australia and 23 in South Australia. Thirty one of these islands had not been previously reported as sea lion breeding sites. A predictive model is developed to estimate the population size from pup production estimates from these locations. It indicates that pup numbers should be multiplied by between 3.81 and 4.81 to estimate the total population size just before the pupping season begins. Pup production was estimated at 2,432 which led to a total population estimate of 9,300-11,700, considerably greater than earlier estimates. Approximately half of the pup production occurs on five colonies near Kangaroo Island, South Australia. An unusual breeding cycle of 17-18 months has been reported for N. cinerea at Kangaroo Island; this study reports for the first time this unusual breeding cycle on islands throughout this species’ range. No evidence was found for breeding seasons shorter or longer than 17-18 months. The breeding season is not synchronised between islands, as it is in other pinnipeds, and the timing of breeding appeared random between sites.
Investigations of the reproductive physiology of this species conducted on Kangaroo Island, South Australia, revealed a 4-5 month embryonic diapause and an 11-12 month placental gestation. This unusually long placental gestation was not associated with the production of a precocious pup, but rather, I hypothesise in this study that foetal growth rate is retarded. Because of the non-seasonal, asynchronous reproductive cycle of N. cinerea the present results indicate that cues for the physiological events of gestation must be endogenous, rather than the exogenous cues hypothesised for other pinnipeds. Throughout the lactation that accompanies gestation, N. cinerea produces milk that is lower in fat (energy) than all but the tropical otariids (30.82 +/- 9.84% SD).
Analysis of scats and stomach contents indicate that N. cinerea has a broad diet and feeds on primarily benthic species. Such a diet is well suited to the low energy marine environment exploited by this species, in which there are few, if any, seasonal changes in food availability. Feeding trials indicated that analysis of scats alone is a poor methodology for quantifying diet.
In this study I hypothesise that the unique reproductive cycle and physiology of N. cinerea results from living in a stable climate in some of the most biologically poor waters of the world.
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Krösche, Heike. ""Ja. Das Ganze nochmal" : Lion Feuchtwanger: deutsch-jüdisches Selbstverständnis in der Weimarer Republik /." Oldenburg : Bibliotheks- und Informationssystem der Univ, 2004. http://www.loc.gov/catdir/toc/fy0707/2006499811.html.
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Hoberecht, Laura K. "Investigating the use of blubber fatty acids to detect Steller sea lion (Eumetopias jubatus) foraging on ephemeral high-quality prey /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/5317.
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Bunzel, Andrea. ""La trilogie de Josèphe" de Lion Feuchtwanger : histoire et écriture romanesque /." Montpellier : Université Paul-Valéry de Montpellier, 2006. http://catalogue.bnf.fr/ark:/12148/cb41027219p.
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Trinkel, M., P. Funston, M. Hofmeyr, S. Dell, C. Packer, and R. Slotow. "Inbreeding and density-dependent population growth in a small, isolated lion population." The Zoological Society of London, 2010. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001446.
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Abstract
In South Africa, more than 30 small, enclosed game reserves have reintroduced
lions over the last two decades, which now house more than 500 individuals. There
is a high risk of inbreeding in these fragmented, fenced and isolated populations,
which may be compounded by a lack of management guidelines. A population of
11 founder lions Panthera leo was reintroduced to Madikwe Game Reserve in
1995, and this population has in turn become a source for reestablishing other
populations. Only four lineages were reintroduced, founder males were related to
founder females, and since 1997, only one male lineage maintained tenure for
49 years, resulting in breeding with direct relatives. Interventionist management
to limit lion population growth and inbreeding in Madikwe has taken the form of
translocating, trophy hunting and culling of mainly sub adult lions. Despite this
management, inbreeding started 5 years after reintroduction. Reproductive performance
and thus population growth in Madikwe were dependent on the overall
lion population density. When lion density was low, females first gave birth at a
significantly younger age and produced larger litters, resulting in a high population
growth rate, which decreased significantly when lion density in the park reached
carrying capacity, that is, 61 lions. This might have profound consequences for
future reestablishment of lion populations when restocking new reserves: our study
illustrates the need for founder populations of reintroduced endangered predator
species to be as large and genetically diverse as possible, and thereafter new genetic
material should be supplemented. The development of such management guidelines
is becoming very important as large predator populations become increasingly
fragmented and managed as metapopulations.
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Childerhouse, Simon, and n/a. "Conservation biology of New Zealand sea lions (Phocarctos hookeri)." University of Otago. Department of Marine Science, 2008. http://adt.otago.ac.nz./public/adt-NZDU20080213.144055.
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New Zealand sea lion (Phocarctos hookeri) is a pinniped endemic to New Zealand and is among the rarest of sea lion species. New Zealand sea lions are incidentally caught in the trawl fishery for squid around the Auckland Islands, and a sea lion catch-limit or Fishing Related Mortality Limit (FRML) is used to manage this interaction. Since 2003 such limits have been calculated using an age-structured Bayesian population model. One problem with this approach is that several key demographic parameters have had to be assumed, or are based on very few data.
Archaeological and other historical records demonstrate that New Zealand sea lions were substantially more widespread before the arrival of humans to New Zealand than they are today (Chapter 2 published as Childerhouse & Gales 1998). The present population size is clearly reduced, with subsistence and commercial hunting the most likely cause of historical changes in distribution and abundance. Campbell Island, the only significant breeding site outside the Auckland Islands, was thoroughly surveyed for New Zealand sea lions for the first time in 2003. An estimated 385 pups were born there, comprising 13% of the total pup production for the species for 2003 (Chapter 3 published as Childerhouse et al. 2005).
This thesis provides the first robust estimates of several demographic parameters for New Zealand sea lions. These data were gained via the capture, tagging and ageing of 865 individual females, which had come ashore to pup between 1999 and 2001. This research was underpinned by the development of a novel and robust ageing technique for live New Zealand sea lions (Chapter 5 published as Childerhouse et al. 2004).
Chapters 6, 7 and 8 used analyses of the age structure of these females, and of subsequent resightings of them, and of known-age females between 1998 and 2005, provided the first estimates of individual growth, mean reproductive rate (0.67, SE = 0.01), mean adult survival (0.81, SE = 0.04), and maximum age (28 years) for females. These data show that New Zealand sea lions are among the slowest growing, slowest reproducing, and longest lived sea lion species. Significant differences in the age structure of the two largest breeding colonies highlight flawed assumptions of the current management approach. The application of this new demographic information has the potential to significantly alter the existing management advice relating to the setting of FRMLs and the impact of the squid fishery on the New Zealand sea lion population.
Taken alone, these results suggest a dim outlook for an already threatened species. In the context that pup production is in significant decline (e.g. 32% since 1998 Chilvers et al. 2007), the species� foraging environment is thought to be marginal (Costa & Gales 2000), and that resource competition may also be impacting on the population (Chapter 4 published as Childerhouse et al. 2001a), the picture darkens further. Taken as a whole, these data suggest that current management is insufficient to ensure population stasis, let alone meet the Government�s statutory goal of recovery.
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LIU, XINJIE. "Moral Values in The Lion, the Witch and the Wardrobe." Thesis, Högskolan Kristianstad, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-7740.
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Li, Xiaobin. "Christian Messages in The Lion, the Witch and the Wardrobe." Thesis, Högskolan Kristianstad, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-7766.
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Gallois, Martine. "Étude sur "Lion de Bourges", poème épique du XIVe siècle." Thesis, Lyon 2, 2011. http://www.theses.fr/2011LYO20027/document.
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L’étude du long poème épique de Lion de Bourges permet de mettre en évidence un parcours individuel modelé par la recherche d’un ordre politique et féodal, au sein duquel le héros tente d’inscrire son action, celle d’un ordre familial, au travers du lignage et de la parentèle, et celle d’un ordre personnel, à la fois recherche des origines et du père, qui devient une quête d’identité. L'idéal chevaleresque s’inscrit donc dans trois perspectives complémentaires. C’est d’abord face à l’instabilité des structures et du pouvoir royal, l’aspiration au rétablissement d’un ordre politique, mais l’inachèvement des actions entreprises et la constante réapparition du mal font que cette quête de l’ordre reste imparfaite. C’est ensuite l’effort pour la restauration d’un ordre familial mis à mal par les entreprises des traîtres et les aléas de l’aventure, mais là encore l’engagement et les efforts du héros ne permettent d’obtenir que des résultats imparfaits ou insatisfaisants. C’est donc à un niveau supérieur, dans la quête d’un ordre intérieur et dans un élan vers la perfection que l’itinéraire personnel de Lion de Bourges peut trouver son véritable sens. Cependant, son ultime tentative pour s’approcher du sacré ne conduit qu’à un échec : le contact avec le surnaturel chrétien est réservé au personnage du Blanc Chevalier, revenant secourable, et le héros doit se contenter d’une forme intermédiaire de merveilleux féerique. En définitive, ce poème témoigne, de manière originale et fort cohérente, de la vision pessimiste de l’idéal humain et de l’engagement héroïque, qui devient prédominante dans l’épopée française tardiveThe long epic poem Lion de Bourges portrays the personal quest of a hero, first, to set in order a feudal political structure; then his own family structure (through ancestry and parentage); and finally, his personal life; for seeking his origins and father becomes a search for his own identity. The chivalric ideal therefore is seen through three complementary perspectives. Initially, when faced with the instability of social structures and royal power, Lion seeks to re-establish political order, but both Lion’s inability to complete his goals and the constant reappearance of evil cause this quest to remain incomplete. Afterwards, Lion’s effort to bring his family back together is derailed by traitors’ plots and the fortunes of adventure, so there again the hero’s efforts produce only imperfect or unsatisfactory results. It is thus only at the highest level, the quest for personal order, for spiritual perfection, that the private itinerary of Lion de Bourges might find its true goal. However, his last desire, to reach sanctity, leads to failure as well: contact with the Christian supernatural is reserved for the White Knight, a helpful spirit, and the hero must content himself with a lesser form of supernatural, the enchanted marvelous world. Clearly, this poem demonstrates, in an original and highly consistent way, the pessimistic view of the human ideal and of heroic engagement that predominates in late French epic
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Gilkes, Brian Eric, and pharoseditions@bigpond com. "The lion and the frigate bird: visual encounters in Kiribati." RMIT University. Media and Communication, 2010. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20100304.105048.
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In order to explain some of the paradoxes and mysteries of the artist's cross cultural experience in Kiribati, he constructed an Artist's Book depicting through visuality, anecdote and reflection, his research process, engaging with current visual perceptions through negotiation with the past. In Kiribati previous encounters with Europeans and Islanders was dominated by English and I Kiribati with significant contributions by French missionaries. Each viewed the other through cultural filters of identity, which were informed by concepts of myth-historical, often heroic pasts, modified by contemporary purpose such as power, trade, evangelism or personal gain. The method of transmission of beliefs about the past differed fundamentally as the Europeans were predominately informed by writing and the I-Kiribati by orality and performance. The non-literary epistemology of the I Kiribati contributed to a cosmology of non-iconic symbols that defined belief systems and social structures. These symbols connected place and space with time, self and group identities. The research found that the all surrounding visual symbol system of sacred meeting house (maneaba), dwelling (bata) and canoe (waa and baurua)) could be partly understood as an ongoing struggle since Deep Time, between the forces of the Ocea n represented by Bakoa, The Shark, and that of the triumph of the coming onto the Land and its people (aba) represented by Tabakea, The Turtle. The performative outcome of this triumph and the spirit of identity (Te Katai ni Kiribati) it engenders is expressed primarily in the ubiquitous I Kiribati Dance. The Artists Book is inspired by the creative classic I Kiribati form of oratory known as Te Kuna, using a structure analogous to the symbolic forms of narrative of Oceanic Voyaging traditionally employed by the I Kiribati. Differences in visual perceptions across cultural interface are understood not only as having the potential for conflict but also as providing positive dynamic force by the interchange of understood differences. The project contributes specifically to the ethnography of English and I Kiribati, semiotic systems and visual epistemologies, indicating directions towards positive outcomes in cross-cultural encounters.
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Krischer, Lion [Verfasser], and Heiner [Akademischer Betreuer] Igel. "Scaling full seismic waveform inversions / Lion Krischer ; Betreuer: Heiner Igel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2017. http://d-nb.info/1137835230/34.
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Brink, Henry. "Hunting for sustainability : lion conservation in Selous Game Reserve, Tanzania." Thesis, University of Kent, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.544075.
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Lindemann, Kristy L. "Auditory-visual matching and exclusion in a California sea lion /." Diss., Digital Dissertations Database. Restricted to UC campuses, 2007. http://uclibs.org/PID/11984.
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Brock, Patrick Michael. "Immunity, life history and conservation in the Galapagos sea lion." Thesis, University of Leeds, 2012. http://etheses.whiterose.ac.uk/3398/.
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Infectious disease threatens health and biodiversity across the globe, and disease emergence may become more common as humans further encroach on habitats and modify environments. To assess the risks of disease emergence in natural populations accurately, we require an understanding of the workings of immunity in the wild. This thesis is about immunity in the context of life history in the endangered Galapagos sea lion, and aims to contribute to understanding of immune dynamics in wild populations, and to evidence-based conservation management. The introduction reviews the development of the discipline of ecological immunology, and discusses the application of its methodological tools to little-known species such as the Galapagos sea lion. The first data chapter uses these tools to describe the ontogeny of Galapagos sea lion immunity in two contrasting ecological contexts. The second data chapter contextualises the immune variation described in the first by assessing the relationship between immune activity and condition. The third data chapter introduces a genetic dimension through the analysis of inbreeding estimates with immune measures. The fourth and final data chapter uses epidemiological models to assess the risk of Galapagos sea lion exposure to canine distemper virus under different management and environmental scenarios. The discussion brings together the results of the data chapters and evaluates emergent themes and limitations in the context of suggestions for future work. The results show that the study of immune variation in species such as the Galapagos sea lion can provide useful insight into the dynamics of immunity in the wild, and information that can have practical application to conservation. They also lay a foundation for integrated epidemiological analyses of disease risk that incorporate physiological and immunological variation, and that have potential for constructive development beyond the Galapagos sea lion.
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Purdie, Christina [Verfasser], Alexander [Akademischer Betreuer] Lion, Alexander [Gutachter] Lion, and Martin [Gutachter] Meywerk. "Variantensimulation für Drehschwingungen in Nutzfahrzeugantriebssträngen / Christina Purdie ; Gutachter: Alexander Lion, Martin Meywerk ; Akademischer Betreuer: Alexander Lion ; Universität der Bundeswehr München, Fakultät für Luft- und Raumfahrttechnik." Neubiberg : Universitätsbibliothek der Universität der Bundeswehr München, 2020. http://d-nb.info/1228461481/34.
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Rapson, Jackie Anne. "The feeding ecology and habitat use of lions reintroduced to small, enclosed reserves in the Eastern Cape Province, South Africa." Thesis, Rhodes University, 2005. http://hdl.handle.net/10962/d1018268.
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Lions have recently been introduced to a number of small (<300km²), enclosed reserves in the Eastern Cape Province as a draw-card for tourists. However, there have been few studies of lion behaviour or predator prey interactions within small reserves. Thus the aim of this study is to contribute towards a better understanding of the effects of space on diet and habitat use of re-introduced lions. The research was conducted at two small private reserves, Shamwari and Kwandwe. Kills were mostly large (55%, >120kg), adult (41%) and male (39%) and the five most commonly killed species (kudu, black wildebeest, warthog, bushbuck and Blesbuck) comprised 67.9% of all kills and 67.8% of total biomass consumed. In an attempt to overcome the problem of gaps in the kill lists, a subset of data, which excluded kills more than five days apart, was analyzed and this gave similar results to analysis of the full kill lists. Mean daily intake rates varied annually between 2.26 and 5.23kg.FEQ⁻¹ for the full data set and 4.53 and 1 0.46kg.FEQ⁻¹ for the subset. The difference between estimated (calculated using daily intake rates of 5 and 7.12kg.FEQ⁻¹) and observed offtake for each ungulate species reflected the preference ratings for that species. Analysis of bone marrow indicated that: lions killed ungulates in moderate to good condition; condition of culled animals was lower than that of kills; distal bones could be used in analyses; and that that bones exposed to the environment for at least a week could be used to analyze condition of prey. Home ranges and activity centers ranged from 21.42km² to 73.27km² and 2.7lkm² to 17.47km² respectively, which was smaller than expected from previous studies. Although, lions at K wandwe and Shan1wari preferred different vegetation types, at both reserves they generally occupied areas that were structurally similar to what has previously been reported. Continuous monitoring and analyses of diet, including condition of the prey, and habitat use will provide reserve managers with some of the necessary information to enable them to effectively manage their lion populations and to predict and minimize potential problems.
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Maldonado, Fernando. "Microstructure, composition and crystallography of Aalbrog Lion Brand Danish White cement." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA341133.
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Thesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, September 1997."September 1997." Thesis advisor(s): Alan G. Fox. Includes bibliographical references (p. 69-71). Also available online.
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Franklin, Samuel Patrick. "Predator influence on golden lion tamarin nest choice and presleep behavior." College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/1388.
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Thesis (M.S.) -- University of Maryland, College Park, 2004.Thesis research directed by: Behavior, Ecology, Evolution and Systematics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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davidson, Zeke. "Lion ecology and socio-spatial impacts of trophy hunting in Zimbabwe." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.531962.
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Moody, Paul. "The lion had wings : the invention of British Cinema, 1895-1939." Thesis, London School of Economics and Political Science (University of London), 2013. http://etheses.lse.ac.uk/792/.
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Studies of the relationship between British cinema and national identity have tended to focus on the subjects and themes of a select number of films, part of a canon generally agreed to represent the qualities of the British ‘character’. Yet several authors have identified limitations to this approach, and presented a range of theoretical and empirical obstacles to the concept of ‘British cinema’. This problem of provenance has been the mainstay of critical debate about the British film industry since its inception, but in prioritising textual analysis, this interpretation often ignores the additional factors involved in the development of notions of ‘Britishness’. In contrast, this thesis focuses on how the concept of what became known as ‘British cinema’, was created during the early twentieth century, addressing the contextual elements of the cinema experience, and arguing that they were extremely important in determining what ‘British cinema’ would come to represent. Using a range of private papers, government records and marketing materials, I chart the development of the link between ‘British’ cinema and national identity, and the various ways that this concept was presented to the public both in Britain and across the globe. Rather than conceive of this as a definitive form ab initio, I argue that it was a complex process of invention, a myth augmented over time and which was so potent it could accommodate a divergent range of films and filmmakers. Thus, this thesis is not a critique of what British cinema represented, but how it came to represent it.
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Schellekens, Philida M. T. A. "An edition of the Middle English romance, Richard Coeur de Lion." Thesis, Durham University, 1989. http://etheses.dur.ac.uk/6564/.
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This PhD thesis consists of an edition of four versions of RCL from the following manuscripts: MS Auchinleck, Advocates 19.2.1; MS Arundel 58, College of Arms; MS Egerton 2862, British Library; MS Douce 228, Bodleian Library, which are printed side by side in vol. 1.The text is accompanied by a full critical apparatus consisting of an Introduction, Notes, Glossary and Index of Names. The Introduction gives a description of the four manuscripts, discusses the affiliation of the four versions - with reference to the texts not printed where necessary - and deals with the language of the original text and that of the four versions. The dialect, style and use of historical sources indicate that the text of RCL, as found in ADEL, is made up of a core part, which originated in the South East, and at least nine interpolations. Internal evidence points to a date of composition of post 1250.As far as it is known, there is no one major source for RCL, nor is there evidence to prove the existence of an AN original. The main sources of the romance are the Itinerarium Peregrinorum and Ambroise's Estoire de la Guerre Sainte,-hut others are also found. The core part of the romance consists of a sober, historical narrative in which Richard I is portrayed as a military hero fighting the Saracens during the third crusade. Although much material was added subsequently, the focus on Richard and his military prowess remains the same, producing a narrative with a narrow, unsophisticated focus, in which the antipathy towards the French rather than the Saracens is striking.
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Figueredo, Maria Cristina. "Richard Couer de Lion : an edition from the London Thornton Manuscript." Thesis, University of York, 2009. http://etheses.whiterose.ac.uk/14222/.
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In the past decade, the Middle English romance Richard Coeur de Lion has attracted a great deal of scholarly attention; nevertheless, the studies have not been as abundant as its richness and complexity may merit. There are two reasons for this: first, Karl Brunner's 1913 edition, which has long been out of print, is virtually inaccessible. Second, even when Brunner's edition is available, its critical apparatus and scanty notes - in Gennan- have long been out of date. This thesis provides an edition of Richard Coeur de Lion from the London Thomton Manuscript, which has never been edited before. The edited text is accompanied byside-glosses and a full critical apparatus, which includes an Introduction, Explanatory and Textual Notes, a complete Glossary, Index of Names, and Episode Chart. In addition, eight maps and fifty-four plates illustrate the edition. The Introduction to the edition is divided into five sections. The first of them, 'Manuscripts & Early Printed Editions', describes the manuscripts and the two early sixteenth-century printed editions in which Richard is extant, and then advances the scholarship with regard to the relationship between the manuscripts. The second section, 'Editing Middle English Texts', revises the methods of editing and their theoretical and pragmatic limits; it then focuses on the particular problems of editing Richard Coeur de Lion. The section ends with a brief account of the life and milieu of the scribe and compiler Robert Thomton. The following section, 'Date of Composition', takes issue with two nineteenth- and early twentieth-century assumptions. First, that the Middle English Richard is a translation of a (lost) Anglo-Nonnan romance and second, that there was an 'original' historical text later' contaminated' by fictional additions. The third section, 'Sources', studies the diversity of sources and influences that lie behind the composition of Richard to show the extent to which this romance has to be studied as the product of a poetic process of re- . . utilization and re-creation of sources; this is illustrated by a case study. The final section of the Introduction, 'History versus Fiction', examines the tension - or lack of it - between the historical and the fabulous parts of the romance, contrasting the medieval self- awareness of Richard as a romance with its modem reception. The section ends with a case study that exhibits Richard's textual wealth.
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Adey, Elizabeth June. "A study of the iconography of the lion in Islamic art." Thesis, University of Edinburgh, 1993. http://hdl.handle.net/1842/17580.
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Throughout the centuries, the lion has generally been acknowledged as a symbol of power in numerous cultures. It exercises magic and talismanic functions as a sign of the zodiac. The lion as the king of the beasts has long fascinated and challenged man. It plays a large part in the decorative arts and mythologies of many cultures and Islam is no exception. The aim of this thesis is to determine the range of meaning attributed to the lion as a motif in Islamic art, through its use in the decorative arts, miniature painting and textiles. A catalogue of some four hundred and sixty examples of the lion as an iconographic symbol on carpets, ceramics, metalwork, stone, textiles and other media has been drawn up. Within each category pieces have been arranged in chronological sequence and their motifs have been identified. The aim has been to assemble a reasonable sample of works upon which to base an investigation of the role of the lion in Islamic art. The text analyses the themes found in the catalogue. Each motif is placed in its historical context with reference to the antecedents of the decorative design and the likely meaning in an Islamic context, supported where possible by writings of the period. Chapter One addresses briefly the description and illustration of the lion in Muslim scientific texts. Chapter Two analyses the lion-bull combat theme. Chapter Three opens with a discussion of images showing man hunting the lion and concludes with a discussion of the lion in association with other animals. Chapter Four discusses two literary works often illustrated with miniatures depicting lions - namely the Kalila wa Dimna tales and the Shahnama. It closely analyses the texts for descriptions of the lion and what it may symbolise in a given context. Chapter Five embraces a diversity of motifs including the image of the lion as found on Islamic coins, lion-masks, lion and throne imagery, the lion-tree motif in textiles and the lion as a single image. Chapter Six discusses the zodiac and the lion as an astrological symbol. Conclusions are drawn in Chapter Seven. The thesis aims to assess the art-historical evidence for the use of the lion in Islamic art. It endeavours to provide a firm basis from which to study the significance of the lion in medieval Muslim culture. Literary and historical evidence is brought in where appropriate in order to elucidate the meaning of the visual imagery. Much work still remains to be done, but the collecting together of a range of pieces bearing a variety of iconographical interpretations of the lion is a vital step in determining the role of this animal in Islamic art and culture.
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Carriço, Joana Isabel Almeida. "Genetic diversity of the California sea lion assessed by pedigree analysis." Master's thesis, Universidade de Lisboa, Faculdade de Medicina Veterinária, 2021. http://hdl.handle.net/10400.5/21171.
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Dissertação de Mestrado Integrado em Medicina VeterináriaThe genetic diversity and population structure of the California sea lion (Zalophus californianus) were assessed based on the pedigree information registered in the European studbook, currently under the management of the Lisbon Zoo, as an EEP programme. Records collected from 1930 until 2020 were used for this analysis, including a total of 1998 individuals, 477 of which represent the current living population. To our knowledge, this is the most comprehensive and up-to-date analysis for this species, assessing the evolution of genetic diversity, inbreeding and relationships, and the genetic contribution of founders, using conventional pedigree analysis procedures and additional software tools commonly used in domestic species, such as ENDOG. The average equivalent complete generations were 1.54 (±1.20) per animal for the overall population. However, there has been an increase in pedigree depth throughout the years, with the reference population reaching 3.37 (±0.76) complete generations, where all animals had maternal grandparents known and nearly 85% to 90% had paternal grandparents known. The whole population had a generation interval of 11.52 (±4.70) years, however the mean ages at which individuals had their progeny has been increasing, particularly in the last decade. Regarding the number of offspring for each parent, dams had an average of 4.05 (±3.16) pups and sires 7.97 (±8.57) pups. The overall mean inbreeding was 2.03% (±5.92), though throughout the years, this has been increasing, with the reference population reaching 3.34% (±6.08). The rate of increase in inbreeding was around 1.6% per generation. The number of inbred animals has also been growing, representing 16.87% and 52.94% of the total and reference populations, respectively. However, the average inbreeding coefficient, of the inbred individuals has shown a significant decrease, with the value for the reference population being nearly half that of the overall population. The mean coancestry among individuals from the same institution of birth, was 0.10, and from different institutions was 0.01, providing the opportunity to maintain inbreeding under control by planned exchange of breeders between institutions. The number of founders contributing to 50% of the gene pool was 36 and 12, for the total and reference populations, respectively, with an effective number of founders of 96 and 34 in the two populations. The effective population size, for the whole population was 36. It is important to maintain a sound program aimed at the genetic management of the population, including management of selection and mating decisions, to avoid further losses of genetic diversity.
RESUMO - Diversidade genética do Leão-marinho Californiano avaliada através da análise do pedigree - A diversidade genética e a estrutura da população de leões-marinhos Californianos (Zalophus californianus) foi avaliada com base nos registos de pedigree do studbook Europeu, sob a gestão do Jardim Zoológico de Lisboa, como um programa EEP. Os registos, recolhidos desde 1930 até 2020, que foram utilizados para esta análise, incluem um total de 1998 indivíduos, 477 dos quais representam a população viva atual. Para nosso conhecimento, esta é a análise mais compreensiva e atualizada desta espécie, que avalia a evolução da diversidade genética, consanguinidade, parentescos, e contribuição genética de fundadores, usando métodos convencionais de análise de pedigree e ferramentas de software adicional, tipicamente usadas para espécies domésticas, como o ENDOG. A média de gerações completas equivalentes foi de 1.54 (±1.20) por animal, para a população total. No entanto, tem havido um aumento na profundidade do pedigree, ao longo dos anos, com a população de referência a alcançar as 3.37 (±0.76) gerações completas, e onde todos os animais tinham avós maternos conhecidos e 85% a 90% tinham avós paternos conhecidos. A população total teve um intervalo de geração de 11.52 (±4.70) anos, no entanto a média das idades às quais os indivíduos tiveram filhos tem vindo a aumentar, particularmente na última década. Em relação ao número de filhos por progenitor, para as fêmeas foi 4.05 (±3.16) crias e para os machos 7.97 (±8.57) crias. A consanguinidade média geral foi de 2.03% (±5.92), embora ao longo dos anos, tenha vindo a aumentar, com a população de referência a alcançar um valor de 3.34% (±6.08). A taxa de aumento da consanguinidade foi de 1.6% por geração. O número de animais consanguíneos tem vindo a aumentar, representando 16.87% e 52.94% das populações total e de referência, respetivamente. No entanto, a média do coeficiente de consanguinidade, dos consanguíneos, mostra uma diminuição significativa, com o valor da população de referência a ser metade do da população total. O relacionamento médio, nos indivíduos da mesma instituição de nascimento foi de 0.10 e de diferentes instituições de 0.01, proporcionando a oportunidade de manter a consanguinidade sob controle por meio da troca planeada entre as instituições. O número de fundadores que contribuíram para 50% do pool genético foi de 36 e 12, para as populações totais e de referência, respetivamente, com um número efetivo de fundadores de 96 e 34, nas duas populações. O tamanho efetivo da população total foi de 36. É importante manter um programa apontado para a gestão genética da população, incluindo o maneio da seleção e decisões de acasalamento, para evitar maiores perdas de diversidade genética.
N/A
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Marsaleix, Patrick. "Modélisation tridimensionnelle de la circulation océanique dans le Golfe du Lion." Toulouse 3, 1993. http://www.theses.fr/1993TOU30072.
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Un modele oceanique tridimensionnel aux equations primitives est developpe et applique a la description des courants dans le golfe du lion. Les problemes numeriques poses par la representation des fortes pentes bathymetriques dans un modele aux coordonnees sigma, sont traites par une methode reduisant les erreurs de troncature des schemas de differenciation. Les simulations du courant liguro-provencal-catalan realisees en l'absence de vent, permettent de retrouver les ordres de grandeurs obtenus experimentalement, en ce qui concerne la veine principale longeant le talus. Les simulations de la circulation induite par vent fort mettent en evidence des processus d'upwelling cotiers observes par la teledetection satellitaire, ainsi que des systemes tourbillonnaires anticycloniques organises
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TUSSEAU, MARIE-HELENE. "Modelisation des variations saisonnieres des cycles biogeochimiques du golge du lion." Paris 6, 1996. http://www.theses.fr/1996PA066419.
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Un modele tridimensionnel du golfe du lion a ete developpe afin de decrire la production primaire et le cycle de certains des elements biogeochimiques qui lui sont associes, a l'echelle des variations saisonnieres. La calibration du modele biogeochimique a ete realisee avec une version unidimensionnelle verticale, par comparaison des resultats avec des profils mensuels de temperature, nitrate, silicate et chlorophylle (frontal, 86) sur une duree d'un an. La simulation resultante est utilisee pour decrire les variables du modele aux frontieres ouvertes est et sud. La simulation tridimensionnelle resulte du couplage off-line du module de biogeochimie avec un modele de circulation generale (herbaut, 94). Le rhone est decrit comme une source ponctuelle de sels nutritifs (tusseau and mouchel, 95). Les resultats sont coherents avec les donnees obtenues pendant le projet eros 2000 et permettent de mettre en evidence un comportement different de la marge et de la mer ouverte, principalement du au melange vertical intense qui s'y produit. Une production nouvelle de 49 gc. M#-#2. An#-#1 est calculee pour l'ensemble du domaine, qui s'eleve a 63 gc. M#-#2. An#-#1 au niveau de la marge. On montre que 40% de la production nouvelle de la marge seraient dus aux apports du rhone
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Chartier-Bunzel, Andrea. "La Trilogie de Josèphe, de Lion Feuchtwanger : histoire et écriture romanesque." Montpellier 3, 2001. http://www.theses.fr/2001MON30028.
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Campbell, Rose. "Tourbillons anticycloniques dans le golfe du Lion : Modélisation couplée physique-biogéochimique." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM4118.
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L'étude de l'impact que les structures hydrodynamiques à mésoéchelle peuvent avoir sur la distribution spatiale des organismes planctoniques et le transport de matière entre la zone côtière et le large est essentielle à la compréhension du fonctionnement de l'écosystème planctonique dans l'océan côtier. L'influence des tourbillons anticycloniques et des processus physiques associés sur l'écosystème planctonique pélagique est examinée au moyen d'un modèle couplé physique-biogéochimie. Dans un premier temps, les sorties du modèle sont confrontées à des données in situ et satellitales afin de vérifier le réalisme du modèle. Pendant la majeure partie de la simulation, et plus particulièrement sur la partie ouest du golfe de Lion pendant la période estivale, l'erreur commise par le modèle sur l'estimation de la chlorophylle de surface (proxy du phytoplancton) est inférieure à celle donnée par le calcul issu de la télédétection. Ensuite, la distribution du plancton en présence d'un tourbillon a été étudiée. Dans les sorties du modèle, un filament avec une forte concentration en chlorophylle est systématiquement observé sur le bord nord/nord-est de la structure, est confirmé par des données satellitales. Enfin, grâce à une simulation longue sur la période 2011-2004, plusieurs tourbillons ont été comparés du point de vue de leur impacts sur les échanges entre la côte et le large de matière et plancton. L'intensité et la direction de ces échanges sont hétérogènes et dépendent des forçages physiques qui ont donné lieu à la génération de ces tourbillonsThe role that mesoscale physical structures play in driving plankton community shifts and transporting matter is key to the understanding of food web dynamics at the regional scale
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Lonsdale, Steven H. "Creatures of speech, lion, herding, and hunting similes in the "Iliad" /." Stuttgart : B. G. Teubner, 1990. http://catalogue.bnf.fr/ark:/12148/cb35535754m.
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Wierucka, Kaja. "Multimodal mother-offspring recognition in the Australian sea lion, Neophoca cinerea." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS432.
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La reconnaissance joue un rôle important dans les systèmes de communication animale et plusieurs modalités sensorielles sont impliquées à cette fin. Bien que la reconnaissance mère-jeune ait été largement étudiée, il y a un manque d'information sur la reconnaissance multimodale et l'importance relative des différentes modalités dans ce processus. Dans cette thèse, j'ai exploré la communication multimodale chez un mammifère colonial - le lion de mer Australien (Neophoca cinerea). La reconnaissance mère-jeune est connue pour être multimodale chez cette espèce, mais les processus sous-jacents de la reconnaissance olfactive et visuelle, ainsi que les interactions entre les indices acoustiques, visuels et olfactifs, et leurs contributions relatives restent inconnues. Des analyses chimiques ont permis de déterminer si les profils chimiques diffèrent selon le sexe et l'âge, les colonies et les régions corporelles des animaux. La présence de similarités chimiques entre la mère et son petit suggèrent que l'appariement des phénotypes pourrait être utilisé pour la reconnaissance olfactive. J'ai examiné le rôle des indices visuels lors de la reconnaissance mère-jeune et j'ai constaté que les indices visuels spécifiques à l'âge sont utilisés par les femelles pour affiner la recherche de leur petit dans la colonie. Les jeunes ont également la capacité de distinguer divers indices visuels, qui peuvent être utilisés pour identifier les différentes classes de congénères. Enfin, j’ai pu aussi déterminer comment les indices acoustiques, olfactifs et visuels sont utilisés de manière synergique dans le processus d’identification individuel, et les résultats sont interprété dans une perspective coûts-avantages pour démêler les pressions évolutives sur chaque composante de ce système de communication. Si les différents indices sensoriels ont la capacité de transmettre des informations en isolation, leur rôle peut être différent lorsque d'autres indices sensoriels sont présents. Les résultats de cette recherche fournissent des résultats sans précédent, contribuant à une meilleure compréhension de la reconnaissance mère-jeune chez les mammifères, ainsi que des règles générales de communication chez les vertébrésRecognition plays an important role in animal communication systems and individuals often employ different sensory modalities to enact this activity. Although recognition has been widely investigated, especially for mother-offspring interactions, there is a dearth of information about multimodal recognition and the relative importance and interactions of various sensory cues. In this thesis, I explored multimodal communication in a colonial mammal – the Australian sea lion (Neophoca cinerea). Communication during mother-pup reunions is known to be multimodal in this species, yet the underlying processes of olfactory and visual recognition, as well as the interactions between acoustic, visual and olfactory cues remain unclear. Through chemical analyses, I determined whether chemical profiles differ among sex and age classes, colonies, and body regions of animals. Chemical similarities between mothers and pups indicate that phenotype matching may be used by Australian sea lions for olfactory recognition. I examined the role of visual cues in mother-pup recognition and found that age-specific visual cues assist mothers to refine their search for their offspring in the colony. Pups are capable of distinguishing various visual cues that can be used in the assessment of conspecifics. Having provided baseline information about the role of sensory cues in isolation, I determined how acoustic, olfactory, and visual cues are used in a synergistic way to ensure accurate mutual recognition and then interpreted the results using a cost-benefit perspective to disentangle the evolutionary pressures on each component of this communication system. I showed that although cues have the ability to convey given information in isolation, their role may be different when other sensory cues are present. Furthermore, there is a mutual dependency in the communication system, where the limitations imposed on one participant of the dyad affect cue use by the other. These findings contribute to a better understanding of mammal mother-offspring recognition and communication mechanisms in vertebrates
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Milette, Linda Leontine. "Behaviour of lactating Steller sea lions (Eumetopias jubatus) during the breeding season : a comparison between a declining and stable population in Alaska /." PURL, 1999. http://www.arlis.org/docs/vol1/61127341.pdf.
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