Browsing by Subject "domestication"
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(2023)Evolution can lead to changes in body size among mammals and when that occurs, organs usually scale along. Teeth are an organ that scale along with body size and therefore, investigating how the teeth are getting along when a mammal is subjected to a rapid reduction of body size is of value. During human evolution, body size has generally increased but jaw and teeth size has decreased. As of recent, human evolution witness a potential decrease of body size, due to the discovery of island-living hominins; Homo floresiensis and Homo luzonensis. The phenomenon of decreasing body size among large animals and increasing body size among small animals in an insular setting is so well-known that it has its own ecological rule, called the island rule or Foster’s rule. However, this phenomenon has not really been studied from the perspective of teeth. In this thesis I focus on the effects of body size decrease on teeth in the context of relatively rapid body size reduction. Researching the effect that a reduction of body size has on teeth is relevant for understanding morphological changes related to island dwarfism and the origins of island forms among humans. Dogs (Canis familiaris) provide an extreme example of rapid and large reduction of both body- and teeth size. Comparing dog molars to molars of their closest ancestor, the wolf (Canis lupus), can shed light on how the teeth behave when scaling down in size. This reduction in body size may be comparable to insular dwarfing as selective breeding of pure breed dogs is limiting the availability of mating partners in a similar way that a secluded island limits the availability of mating partners for insular animals. To answer my research questions, I measure and photograph dog molars and compare the results with data of wolf molars. Furthermore, if any patterns emerge, data of human molar is compared to the canid data to investigate if any similarities can be found. The results show that dog molars are overall smaller in size than wolf molars and that both species follow a pattern where m1 > m2 > m3. Furthermore, small dogs are more likely to have an absent m3 than big dogs and wolves. Moreover, the results show that the size relation between dog m1-m2 is a continuum of wolf m1-m2 relation. However, dogs have enlarged their m3 and therefore the m2-m3 size relation is not a continuum of wolf molar relation. When comparing the human data to the results of dog/wolf m1-m2 and m2-m3 size relation, the results show that Homo floresiensis molars are on the same trajectory as Homo erectus molars. This implies that dogs have done adjustments to their molars that diverge from their ancestors’ molars and that the change has happened during a short period of time. Therefore, dog molars cannot be seen as simply scaled down version of wolf molars, as far as size is concerned. The information gained from this thesis can be used to further investigate if molars of other rapidly dwarfed species may have behaved in a similar manner. It is however too early to say if dogs can be seen as an island rule simulation or if they can shed light on the origins of hominin island forms. More research, such as comparing the number of cusps between dog and wolf molars or investigating the upper carnassial and the following molars, needs to be done to be able to draw any further conclusions.
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(2024)Both public and private sector have increased their efforts to construct leisure functions for public spaces during the past few decades. In the literature, the process is known as domestication or pacification of public spaces - often with a critical outlook. Recently, many scholars have pushed more nuanced understandings of domestication where everyday homemaking of public space is also recognised. Leisure spaces are constantly being contested and negotiated which causes loosening of previously tight boundaries of inhabitation and encourages previously unattainable ways of homemaking. The thesis builds on these themes by looking at both looseness and tightness of domestication from the perspective of users. The strands of River Aura in Turku provided a case study area where leisure functions have largely replaced previous port and manufacturing functions. The city has branded the river as "the common living room of Turku" and has encouraged spending more time by the river. Many of the measures take advantage of the existing historical context, both pre-industrial and industrial, to generate artificial leisure identity for the city centre. The thesis utilized on-site individual interviews (N=44) and off-site group interviews (N=14, three groups) to analyse user perception of the riverfront leisure spaces. Most of the on-site interviewees expressed profound satisfaction over domestication in terms of seating, amenities, and atmosphere. However, they had detailed hopes to add more inclusive and adaptive furnishing at the riverfront. Therefore, their focus on domestication was usually on the practical everyday matters rather than on large-scale urban developments. Based on the analysis of the group interviews, the materiality and the circulation interact daily through loose and tight domestication. Meanwhile, the atmosphere seems to be a more fundamental feature formed by a long-term interaction between the materiality and the circulation. Thus, the users were quite ambivalent regarding any attempts to change the atmosphere and instead expected public sector to assist residents in transforming the materiality and the circulation according to their wishes.
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