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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.
61

Molecular ecology of North Pacific Otariids : genetic assessment of north fur seal and Steller sea lion distributions /

Ream, Rolf R. January 2002 (has links)
Thesis (Ph. D.)--University of Washington, 2002. / Vita. Includes bibliographical references (leaves 97-117).
62

The Cantonese lion head: the process of making a lion head in Guangzhou

Mo, Cuiyu., 莫翠瑜. January 2013 (has links)
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
63

Collar-Integrated Small Mammal GPS Tracker

Kundu, Ina, Rice, Sean, Klug, Kevin, Chen, Hao, Marquez, Elizabeth, Zhong, Yizhou 10 1900 (has links)
ITC/USA 2013 Conference Proceedings / The Forty-Ninth Annual International Telemetering Conference and Technical Exhibition / October 21-24, 2013 / Bally's Hotel & Convention Center, Las Vegas, NV / A position beaconing system for tracking small mammals, such as the Golden Lion Tamarin, was developed and tested. GPS acquires location of the animal. The system utilizes a VHF radio transmitter tuned to 144.390 MHz, which is located in the amateur radio band. APRS was selected as the protocol for position, transmission, and recovery. This allows users to benefit from any existing APRS enabled devices. The beacon was designed by attempting to optimize operational longevity and minimize size. Consequently, the system is implemented on a single board and enclosed for protection. As the system must be comfortable for the mammal, it was manufactured from lightweight components and enclosed in a plastic housing. To attach the case to the mammal, it is connected to a flexible, zig-zag, wearable antenna, which functions as a collar.
64

Variation of mitochondrial control region sequences of Steller sea lions: the three-stock hypothesis

Baker, Alyson Renee 30 September 2004 (has links)
Sequence variation of a 238 bp segment of the mitochondrial control region was analyzed for 1,568 Steller sea lions (2.8% of the estimated species population) sampled from 50 rookeries representing nearly every locality at which Steller sea lions are known to breed in significant numbers. Haplotype diversity (H = 0.9164 ± 0.0035) was high and nucleotide diversity (π = 0.00967 ± 0.00586) was moderate. No evidence was observed for significant genetic bottleneck effects. Rookeries were grouped into regions and stocks to examine structure at different spatial scales. F- and Φ-statistics were computed for all pairwise comparisons of rookeries, regions and stocks. Significant (P<0.05) divergence of eastern stock (southeastern Alaska to California) animals from western stock animals was supported in analyses at all spatial scales. Likewise, rookeries and regions from Asia were found to be significantly different from all other western stock rookeries. This was most clearly demonstrated using Φ-statistics at the regional level. The Commander Islands clearly associate with Alaskan western stock rookeries, not with the Asian rookeries. Within each of the three stocks there is significant isolation by distance among rookeries. This relationship does not hold for inter-stock comparisons indicating that there are important barriers to gene flow among stocks. Mitochondrial DNA analysis supports the recognition of three stocks for appropriate conservation of the species. The currently recognized eastern stock is unaffected, but the western stock is now partitioned west of the Commander Islands yielding a western stock which ranges from Prince William Sound west to the Commander Islands, and an Asian stock including rookeries from the Kamchatka Peninsula, Kuril Islands, and Sea of Okhtosk.
65

Conservation biology of New Zealand sea lions (Phocarctos hookeri)

Childerhouse, Simon, n/a January 2008 (has links)
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.
66

Literarische Justizkritik bei Feuchtwanger, Musil, Wassermann und A. Zweig

Scheel, Reiner January 1930 (has links)
Zugl.: Düsseldorf, Univ., Diss. u.d.T.: Scheel, Reiner: Vier Varianten literarischer Rechtsschelte um 1930
67

The evolution of a physiological system the pulmonary surfactant system in diving mammals /

Miller, Natalie J. January 2005 (has links)
Thesis (Ph. D.)--University of Adelaide, 2005. / Title from PDF title page (viewed on Feb. 3, 2006). Includes bibliographical references.
68

Behavioural responses of Amur tigers (Panthera tigris altaica) and African lions (Panthera leo) to conspecific urine and to a component of tiger marking fluid

Cederlund, Joakim January 2018 (has links)
Olfactory signals are an important means of social communication among felids. However, not much is known about how individual volatiles of body-borne odours influence behavioural responses. 2-acetyl-1pyrroline has recently been identified as a characteristic component of tiger marking fluid, while being absent from lion marking fluid. One pride each of captive Amur tigers (Panthera tigris altaica) and African lions (Panthera leo) were presented with wooden logs impregnated with four different odours and their behaviour was observed. The tigers displayed significantly more interactions towards the marking fluid component (2-acetyl-1-pyrroline), the conspecific urine odour, and the fruity odour (iso-pentyl acetate) than towards the near odourless control (diethyl phthalate). The lions displayed significantly more behaviours towards conspecific urine than towards any of the other odours.  In general all lions interacted more with the logs than tigers. Hence, these results support the notion that 2-acetyl-1-pyrroline is a species-specific odorant for tiger olfactory communication. Furthermore, the results show that a single compound (2-acetyl-1pyrroline) can elicit behavioural responses to the same degree as a complex chemical mixture (tiger urine). The high number of interactions performed by both species towards the wooden logs impregnated with conspecific urine suggests that conspecific odours are suitable to use as olfactory enrichment for captive felids.
69

Lions on small reserves : an evaluation of ecological impact and financial viability

Erasmus, Wayne Norman 31 July 2008 (has links)
A founder population of lion (Panthera Leo) was introduced into a 70 km² privately-owned, wildlife reserve in the Waterberg area of South Africa. The lion and prey species' populations were monitored between 2001 and 2004. In this period, 452 kills were recorded at a mean kill rate of one kill every 2.43 days. The lions killed 11 common prey species. Eland, warthog, kudu, wildebeest and zebra comprised 75 % of the lion's diet. The lions consumed an average of 8 % of the available common prey species population per annum. Initially, the mean ungulate population growth rate was 30.9 %, but this rate declined to -0.8 % during the study period. Significantly more animals were killed in open habitats than in closed habitats. The loss in game value for the study period was over one million Rand. A formula was compiled to quantify the cost versus return aspects of introducing lion. / Nature Conservation / M. Tech. (Nature Conservation)
70

ZOO Park Dvůr Králové - nová zóna / ZOO Park Dvůr Králové - New Zone

Rutrlová, Jana January 2011 (has links)
Reconstruction of area of former foundry to an exhibition exposition.

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