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Bibliographies thématiques / Tree Population dynamic

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Littérature scientifique sur le sujet « Tree Population dynamic »

Auteur : Grafiati

Publié le 10 mars 2023

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Thèses sur le sujet "Tree Population dynamic"

1

Villari, Caterina. "Fungi associated with the pine engraver beetle Ips acuminatus and their interactions with the host tree." Doctoral thesis, Università degli studi di Padova, 2012. http://hdl.handle.net/11577/3422532.

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Conifer bark beetles are typically associated with complexes of fungi with which they can display different functional relationships. Some of the fungi, generally non phytopathogenic, are known to have a directly mutualistic interaction with the beetles, serving as nourishment to the larvae. Other associated fungi are thought to be involved in the process of exhausting plant defenses, which is a necessary step for the insects to overcome host tree resistance and colonize the plant. In the latter case, bark beetle-associated fungi are often tree pathogenic species belonging to the morphological

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Manokaran, N. "Population dynamics of tropical forest trees." Thesis, Available from the University of Aberdeen Library and Historic Collections Digital Resources, 1988. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=59678.

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Stan, Amanda B., Thomas B. Maertens, Lori D. Daniels, and Stefan Zeglen. "Reconstructing Population Dynamics Of Yellow-Cedar In Declining Stands: Baseline Information From Tree Rings." Tree-Ring Society, 2011. http://hdl.handle.net/10150/622635.

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Yellow-cedar (Chamaecyparis nootkatensis (D. Don) Spach) forests of coastal British Columbia are apparently experiencing decline in a manner similar to that observed in southeastern Alaska. In this pilot study, we collect tree-ring data from live and standing dead yellow-cedar trees from four declining sites on the North Coast of British Columbia. We use this data to compare growth patterns at our sites to those of yellow-cedar trees at non-declining and declining sites in southwestern British Columbia and southeastern Alaska and, in addition, to assess the possibility of reconstructing yello

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Lind, Brandon M. "NATURAL AND ANTHROPOGENIC DRIVERS OF TREE EVOLUTIONARY DYNAMICS." VCU Scholars Compass, 2018. https://scholarscompass.vcu.edu/etd/5359.

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Species of trees inhabit diverse and heterogeneous environments, and often play important ecological roles in such communities. As a result of their vast ecological breadth, trees have become adapted to various environmental pressures. In this dissertation I examine various environmental factors that drive evolutionary dynamics in threePinusspecies in California and Nevada, USA. In chapter two, I assess the role of management influence of thinning, fire, and their interaction on fine-scale gene flow within fire-suppressed populations of Pinus lambertiana, a historically dominant and ecological

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Kolodin, Dmitriy Pavlovich. "Dynamics of Tissue-Resident Regulatory T Cell Populations." Thesis, Harvard University, 2014. http://dissertations.umi.com/gsas.harvard:11555.

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In recent years, there has been a worldwide increase in obesity, which parallels a rise in pathologies, including type 2 diabetes, collectively termed the metabolic syndrome. Chronic, low-grade inflammation has been implicated as a major link between these diseases. Recent work showed the presence of a unique subset of CD4+Foxp3+ regulatory T cells residing in visceral adipose tissue (VAT Treg) with PPAR-g being the key transcription factor responsible for their phenotype and function in controlling adipose tissue inflammation and, thereby, insulin sensitivity. VAT Tregs inversely correlated w

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Alalouni, Urwa [Verfasser], and Roland [Akademischer Betreuer] Brandl. "Insects in forests. Assemblages, effects of tree diversity and population dynamics / Urwa Alalouni. Betreuer: Roland Brandl." Marburg : Philipps-Universität Marburg, 2014. http://d-nb.info/1059856425/34.

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Boom, Arthur. "Diversification, evolution and population dynamics of the genus Brachystegia, a keystone tree of African miombo woodlands." Doctoral thesis, Universite Libre de Bruxelles, 2021. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/331717.

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Miombo woodlands are vast wooded savannas covering 2 million km2 in East and Southern Africa. The main feature of these landscapes with closed but not overly dense canopy is the dominance of Brachystegia, Isoberlina, and Julbernardia legume trees genera. The timing of the onset of such vegetation, mainly understood through pollen fossils remains unclear. Dated molecular phylogeny calibrated with fossils for the aforementioned genera has the potential to provide details regarding the origin of species that nowadays dominate the current woodlands and possibly of miombo vegetation as a whole. The

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Houlgreave, John A. "Water tree dynamics and their scaling with field and frequency by analysis of time-series population data." Thesis, University of Leicester, 1996. http://hdl.handle.net/2381/34781.

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Water trees are a major form of degradation in solid organic electrical insulation subject to high AC voltages and water. The work is aimed at developing a more rigorous approach to analysing water tree data from ageing experiments on practical insulation geometries. Such data is in the form of tree length distributions and time-increasing tree number densities. Tree inception statistics are directly accessible from the data, but the effects of growth are convolved with those of inception. An approach is developed for analysing the data to quantify aspects of both inception and growth. In part

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Giesecke, Thomas. "The Holocene Spread of Spruce in Scandinavia." Doctoral thesis, Uppsala University, Department of Earth Sciences, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4623.

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<p>The Holocene spread of <i>Picea abies</i> in Scandinavia provides an excellent opportunity for detailed study of the dynamics of tree spread and population expansion. Early- and mid-Holocene macrofossil evidence for the presence of <i>Picea abies</i> in Scandinavia has questioned traditional interpretations of the timing and direction of its spread. This study aims to determine the pattern of the spread of <i>Picea abies</i> in Scandinavia from pollen and other data, to evaluate the significance of possible early outpost populations and to deduce possible factors that influenced the spread

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Valeriano, Diana Damasceno Barreto. "Dinâmica da floresta ombrófila mista altomontana, Campos do Jordão, São Paulo." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/41/41134/tde-25082010-114434/.

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Avaliou-se a dinâmica do componente arbóreo de uma área de Floresta Ombrófila Mista na região sudeste do Brasil, com o objetivo de verificar seu estádio sucessional e sua aderência aos modelos dinâmicos propostos para esta formação. O primeiro, modelo lozenge, ou de substituição temporal de área, propõe que a dinâmica é influenciada por padrão de recrutamento intermitente dependente de distúrbios severos, para as pioneiras longevas, geralmente gimnospermas, que dominam estruturalmente a floresta. O segundo propõe que a presença da Araucaria angustifolia é indicativa de sucessão em curso, pois

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