The purpose of this research was to create the longest possible, homogeneous, historical daily temperature dataset for Southern New Zealand, analyse the changes in extreme temperatures and investigate atmospheric circulation patterns that contributed to these changes. Daily minimum and maximum temperature data for Southern New Zealand were captured from paper records and extended to include all available archival data from the region. This dataset was digitised and contains temperatures from 26 stations that began operation sometime in the period between 1852 and 1953. Stations include the Chatham and Campbell islands. Adjustments for inhomogeneities in the dataset were made using a frequency distribution matching method. Dunedin has a record dating from 1852, the longest in the Southern Hemisphere south of 40�S latitude. Reconstruction of a homogeneous record for Dunedin was made by taking into account site changes from contemporaneous modem data logger measurements and from an analysis of overlapping period data. Temperatures showed no clear pattern of change in Southern New Zealand from the mid 1800s through to the early 1900s with the exception of a brief cold period that occurred around 1900. However, from the 1940s through to the 1970s both minimum and maximum extreme temperatures showed strong warming. These trends were duplicated over the shorter length period of record for other regions, especially in Eastern Canterbury. The warming trend was maintained over the period 1979 - 2003, but only in the colder ends of minimum and maximum distributions. Temperatures have become less cold due to the recent compression of the temperature distribution. There was a marked decrease in cold days at stations in the south and offshore islands. Atmospheric circulation pattems, and in particular ENSO, were shown to affect extreme temperatures recorded in Southern New Zealand. Anomalous southwesterlies associated with El Nino events produce cooler temperatures and increase the numbers of cold extreme temperatures, while anomalous northeasterlies typical of La Nina increase the numbers of warm extreme temperatures. Monthly frequencies of extreme temperatures were primarily affected by anomalous south/north meridional airflows to increase cold/warm extreme temperature frequencies. Zonal airflows have a lesser, but topographically influenced effect. Record hot and cold temperatures in Southern New Zealand were a product of the interaction between advective northerly and southerly airflows respectively, and local climatic effects caused by topography.

The first part of a novel submitted to the University of Canterbury to fulfil the requirements of the degree of Master of Fine Arts in Creative Writing.

The purpose of this research was to create the longest possible, homogeneous, historical daily temperature dataset for Southern New Zealand, analyse the changes in extreme temperatures and investigate atmospheric circulation patterns that contributed to these changes. Daily minimum and maximum temperature data for Southern New Zealand were captured from paper records and extended to include all available archival data from the region. This dataset was digitised and contains temperatures from 26 stations that began operation sometime in the period between 1852 and 1953. Stations include the Chatham and Campbell islands. Adjustments for inhomogeneities in the dataset were made using a frequency distribution matching method. Dunedin has a record dating from 1852, the longest in the Southern Hemisphere south of 40�S latitude. Reconstruction of a homogeneous record for Dunedin was made by taking into account site changes from contemporaneous modem data logger measurements and from an analysis of overlapping period data. Temperatures showed no clear pattern of change in Southern New Zealand from the mid 1800s through to the early 1900s with the exception of a brief cold period that occurred around 1900. However, from the 1940s through to the 1970s both minimum and maximum extreme temperatures showed strong warming. These trends were duplicated over the shorter length period of record for other regions, especially in Eastern Canterbury. The warming trend was maintained over the period 1979 - 2003, but only in the colder ends of minimum and maximum distributions. Temperatures have become less cold due to the recent compression of the temperature distribution. There was a marked decrease in cold days at stations in the south and offshore islands. Atmospheric circulation pattems, and in particular ENSO, were shown to affect extreme temperatures recorded in Southern New Zealand. Anomalous southwesterlies associated with El Nino events produce cooler temperatures and increase the numbers of cold extreme temperatures, while anomalous northeasterlies typical of La Nina increase the numbers of warm extreme temperatures. Monthly frequencies of extreme temperatures were primarily affected by anomalous south/north meridional airflows to increase cold/warm extreme temperature frequencies. Zonal airflows have a lesser, but topographically influenced effect. Record hot and cold temperatures in Southern New Zealand were a product of the interaction between advective northerly and southerly airflows respectively, and local climatic effects caused by topography.

Assessing the timing of seasonal movements by the prehistoric peoples of Otago has long been a problem in the archaeology of this region. The oxygen isotope ratio (18 o/16o) of mollusc shell carbonate is temperature dependent. By sampling successive increments of shell growth, palaeotemperature curves can be constructed to provide �season of death� estimates for individual shells. In this work carbonate samples from the blue mussel (Mytilus edulis) were used to estimate the seasonality of four prehistoric fishing sites. A total of 275 samples of shell material were analysed for carbon and oxygen isotope ratios at the Institute of Nuclear Sciences, Lower Hutt. Where fishing and shellfishing were important activities they were consistently associated with the winter season. A model of seasonal activity is presented for the Early part of the prehistoric period.

Summary: Although a good deal of information is available about the Maoris of New Zealand, concerning their origin, customs, and culture, yet statistical data regarding their actual numbers at any time before 1857 are comparatively rare. It is a fact that the Maori population in any given locality was a fluctuating one and that their distribution in general was very variable and this constitutes a formidable difficulty in making any estimate of their numbers before the first cenus. A second obstacle is the difficulty of travel which faced the early European explorers. For example, when Cook visited New Zealand, he made an estimate of the population but it was largely conjectural as Cook saw the natives at only those places he touched around the coast, and had in fact no means of estimating what proportion of the total population those communities formed. Actually the Maoris were not confined to the coastline, and therefore Cook�s estimate cannot be regarded as based on adequate data. An evaluation of his estimate will be made later--Chapter 1.

During recent years the high country of the South Island has attracted a good deal of attention from farm economists, soil conservationists, geographers and also politicians. With the present need for increased national production the problem of keeping the high country in productive occupation is the subject of justifiable concern. The purpose of this regional study is to describe one of the most distinctive areas in the high country, and to discuss the problems which have caused the recent Royal Commission on the Sheep-farming Industry in New Zealand to investigate the general economic position of the runholders. Besides being a well-defined physiographic unit, the Mackenzie Basin or, as it is better known to the local people, the Mackenzie Country has a distinctive character of its own. On entering Burkes Pass even the most casual observer cannot fail to notice how different the landscape within the basin appears compared with that outside. This large, gravel-filled intermontane depression with its vast expanse of dun coloured tussock and its clear, dry climate seems to have a special flavour which distinguishes it from any other part of either Canterbury or Otago. Probably the most striking feature of the basin is its monotonous uniformity of both physical conditions and human activities. The extensive sheep-farming economy has imposed a distinctive pattern of land use over the whole area. Not only does the landscape have a similar appearance everywhere but, because of their common int erests, the people all tend to live alike and think alike. Before 1939 the basin was solely a sheep-grazing area but, with the recent developments connected with the storage of water in the lakes for the generation of hydro-electricity, the Mackenzie Country has assumed a new importance. With the dam-building schemes at Tekapo and Pukaki an entirely new element has been introduced into the landscape - the large Public Works Camp. These camps, however, are, for the most part, temporary features and the sheep-station remains the typical unit of settlement. For this reason the major part of this study is devoted to a description of the landscape as it has developed under the extensive sheep-farming economy and a discussion of the problems resulting from the exploitation of the natural vegetation. When the early settlers first took up their runs they had the opportunity of making the Mackenzie basin one of the best merino grazing areas in New Zealand. In most cases that opportunity was lost, due partly to ignorance of proper grazing methods under sub-humid conditions and partly to short-sighted practices caused by temporary economic difficulties. Over-burning and over-stocking extracted an early toll from the vegetation cover which, in spite of numerous attempts can never be fully repaid. By deliberately introducing rabbits into the area the early runholders made their third and possibly their greatest mistake. These rabbits were allowed to multiply unchecked for nearly twenty years before it was realised what a menace they were likely to become. By that time it was too late. Today, the rabbit is generally considered to be the chief cause of the disturbing decline in the sheep carrying capacity of the Mackenzie Country. Altogether, unwise burning, overstocking and rabbits have caused such a deterioration in the tussock cover that Cumberland's description of some parts of the basin as "deserts in the making" is quite appropriate. Admittedly conditions are not as bad as in the "man-made deserts" of Central Otago but a serious problem at present confronts the Mackenzie runholders.

The aim of this thesis is to undertake a theoretical analysis of the dynamics of change in pre-Ngāi Tahu and Ngāti Māmoe oral traditions of Te Waipounamu to gain a deeper understanding of their nature, function, evolution and meaning. For the purposes of this thesis a framework will be established to classify changes to encompass different types of alterations made pre-contact and post-contact to authentic and un-authentic oral traditions. This model will analyse the continuum of change and will be applied in later chapters to pre-Ngāi Tahu and Ngāti Māmoe traditions to gain an understanding of the dynamics, evolution and construction of the oral traditions of Te Waipounamu. This study of the morphology of tradition will demonstrate they were never fixed but evolved alongside their communities as they adapted to ensure tribal identity and mana was firmly entrenched in their local landscape. A major component of this thesis will be analysis of Waitaha traditions centring upon three key questions; firstly who were Waitaha peoples, secondly, where were they from, and thirdly, were they, and do they continue to be separate social units? This thesis will contribute to this discussion by analysing literature concerning pre-Ngāi Tahu and Ngāti Māmoe tribal identities to ascertain not just who they were and where they were from but how their identities have been constructed and modified over time. Analysis will examine the role of oral tradition in establishing tribal identity and how Waitaha traditions were changed both pre and post-contact to suit the cultural, political and ideological imperatives of the time, providing an insight into how our ancestors perceived, recollected and constructed the past to suit the needs of the present.

Thesis (Master of Arts)--University of Canterbury, 2008. / Includes bibliographical references (leaves 356-369). Also available via the World Wide Web.

Podocarpus cunninghamii is an endemic New Zealand conifer that, in pre-human times, formed extensive forest communities across the eastern South Island high country. Anthropogenic disturbances have reduced the distribution of Podocarpus cunninghamii communities such that they now exist mainly as small and isolated remnants within a highly modified, predominantly pastoral landscape. Very little is known of the ecology of high country Podocarpus cunninghamii communities, and without this information it is not possible to develop an ecological basis for their restoration. This thesis explores the ecology of Podocarpus cunninghamii in the eastern South Island high country, investigating factors that potentially affect the restoration of Podocarpus cunninghamii within this environment, with special attention paid to the role of arbuscular mycorrhizal fungi (AMF). Field investigations of Podocarpus cunninghamii communities showed that they contain a high degree of floristic and structural variation determined by soil and climatic variables. Analysis of age and size class distributions suggest that Podocarpus cunninghamii has more than one regeneration strategy, and can regenerate within intact forest following the opening of small canopy gaps or can undergo large-scale recruitment following catastrophic disturbance. Field and glasshouse experiments investigating growth and nutrient responses of Podocarpus cunninghamii to different AMF inoculants found that Podocarpus cunninghamii responses are dependent on both AMF type and grass competition. Finally, investigation of Podocarpus cunninghamii carbon stocks showed that they are less than that of other New Zealand forest types, but are greater than that of grazed pastures. Successful restoration of high country Podocarpus cunninghamii communities will require the incorporation of associated species based on local environmental conditions, and will also need to allow for disturbance processes. AMF may have an important role to play in restoration by reducing seedling production times and by increasing the competitiveness of Podocarpus cunninghamii when in competition with exotic grasses.

The current explanation for the absence, or low abundance, of filter-feeding invertebrates from some rocky shores is that because of local variation in nearshore oceanographic conditions, larvae do not arrive in sufficient numbers to establish populations. One putative consequence of this is that macroalgae are able to establish dominance in areas where filter-feeders (especially mussels) do not recruit well. While macroalgae have been transplanted to mussel-dominated shores with varying success, the survival, growth and reproduction of transplanted mussels has not been tested in areas dominated by macroalgae. To determine specifically what tips the balance between shores dominated by filter-feeding invertebrates and those dominated by macroalgae, I monitored the recruitment of intertidal mussels at four sites on the Kaikoura coast: two with mussels present and two algal-dominated. No significant differences in mussel recruitment rates were found between habitats and recruitment intensity at all sites was found to be very low. Recruitment limitation is not the reason for the absence of mussels from algal dominated shores but some form of limitation does occur to reduce the number of arriving mussels. Predation effects were examined by transplanting juvenile mussels into caged, uncaged and control treatments. No significant differences in predation rates between habitats were found and transplanted mussels in open cages at all sites were removed within 3 days. Mobile fish predators appeared to be the most likely cause of this intense predation. Growth of transplanted mussels into algal and mussel habitats was found to be significantly different. Mussels grew faster in mussel dominated habitats and after 6 months in algal dominated habitats, all mussels had died. The outcome of these experiments indicates that there is a close relationship between recruitment, survival and growth which tips the balance and allows the existence of mussel beds along the Kaikoura coastline.