Dissertation--Fachbereich Philosophie und Geschichtswissenschaft--Universität Hamburg, 2004. / Bibliogr. p. 251-272.

Dissertation--Philosophische Fakultät--Dresden--Technische Universität, 2006. / Bibliogr. p. [454]-478.

Thèse de doctorat--histoire--Paris 1, 2007. / Résumés en français et en anglais. En annexes : bibliogr. des oeuvres de J. Lechevalier Saint-André suivie des sources consultées. Bibliogr. p. 394-401. Index.

Thèse de doctorat : Psychologie : Rennes 2 : 2008. / Bibliogr. f. 281-29. Index des noms.

In this thesis I investigated the mutualism between Kunzea ericoides (kanuka) and two groups of soil fungi, ectomycorrhizae (ECM) and arbuscular mycorrhizae (AMF). Mycorrhizal mutualisms, which are considered globally ubiquitous, are poorly understood over changing abiotic gradients. A field survey of K. ericoides assessed how the relationship with the soil fungi varieties altered over a hydrologic gradient. Arbuscular mycorrhizal colonisation was significantly improved by increasing rainfall levels and amount of surrounding kanuka, and negatively affected by increasing altitude. Ectomycorrhizal colonisation was not significantly affected by any measured variables and remained relatively constant across all circumstances, suggesting that it is the preferred fungal mutualist for this tree species. A glasshouse experiment was done to measure the effect of ECM inoculation on the growth and water usage of K. ericoides over varying moisture availability. The seedlings were planted in soil inoculated with both ECM and AMF (experimental) or AMF only (control) and then grown under varying levels of water stress. The experiment was replicated with two soil types, with soil from beneath adult manuka (Leptospermum scoparium) and soil from beneath adult kanuka (K. ericoides). ECM colonisation significantly increased as soil moisture decreased for both soil types. ECM inoculation also increased the root:shoot ratio, and drastically decreased water usage under drought conditions. There were some soil effects as the seedlings grown in manuka-soil achieving greater biomass than seedlings grown in kanuka-soil. This is possibly due to presence of pathogens or some type of legacy competition which the seedlings would experience growing near conspecifics. Overall, K. ericoides formed a dominant mutualism with ectomycorrhizae. These two both thrive in dry environmental conditions and have a suite of complementing abilities which possibly allow K. ericoides to expand it range into these dry habitat types. The increased benefit of these mutualisms at the hydrologic range limit of the species supports the importance of biotic interaction mediating environmental stress. Understanding the effects and response of mycorrhizal mutualisms are especially significant considering current climate change issues in New Zealand and worldwide.

Papua New Guinea (PNG) is a country composed of thousands of tribes, clans, cultures and customs, with well over a hundred languages and totemic groupings spread sparsely across its lands (Bonney 1986: 2) (see Map A). Today the country has a total population of four million people (NSO 1991). Before colonisation, Papua New Guinea’s indigenous settlement patterns and social organisation reflected the fragmented nature of the country’s environment, its isolation from the eastern and western centres of civilisation, and the needs of small-scale subsistence economies. Over thousands of years, Melanesian societies have been too diverse for any particular area or group to typify the country’s culture or to maintain a dominant role within government. Deviance, regulatory mechanisms and methods used by each tribe or cultural group to resolve disputes, varied according to the community’s culture and customs. At the time of colonisation the indigenous people were artificially united in one nation-state. With the introduction of Western social, political, economic and judicial systems, they were forced to live under alien dispute resolution procedures and to accept an imposed Western system of sanctions, which overlaid or supplemented the customary dispute resolution procedures. Since colonisation, a Western legal system of sanctions has been imposed on Papua New Guineans in which the colonialists have overlooked traditional, unwritten customary systems.

No description available.

The thesis analyses the continuum of European activity that preceded establishment of an effective pastoral industry in Australia's north-west. Two strands - physical activity and evolution of legislation - are interwoven, examining growth in geographical knowledge, proposals for colonisation and the outcome of interplay between government officials and landholders over land policy. Growth in geographical knowledge gave rise to colonisation proposals from 1828. The thesis relates these proposals to events affecting northern Australia to show that promotion and occupation of north-west lands constituted an integral part of the outgrowth of colonial settlement in Australia. Europeans occupied the north-west in two waves, abortively during the 1860s and continuously from 1879. The existing literature identifies these waves but provides inadequate analysis of events to 1884. The thesis fills this gap by showing that land hunger, misinformation, land speculation, manipulation of legislation and exploitation of political power for private commercial gain determined the shape of north-west settlement. Moreover, by relating land policy to tenure and occupation, it shows that private individuals influenced land policy and impeded official plans for rapid settlement. Thus, the thesis provides a fresh perspective not only on the prelude to effective pastoral settlement in the north-west but on the management of Western Australia's outlying lands in the period before responsible government.

Thèse--Lettres--Paris I, 1980. / Bibliogr., vol. 2, p. 551-582 . Index.

Texte remanié de: Th. 3e cycle--Paris--École des hautes études en sciences sociales, 1983. / Bibliogr. p. 303-318.