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Dissertations / Theses on the topic 'Belowground interactions'

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1

Tamburini, Giovanni. "Testing interactions between above- and belowground ecosystem services." Doctoral thesis, Università degli studi di Padova, 2015. http://hdl.handle.net/11577/3423991.

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Agriculture is the predominant form of land management worldwide. During the last fifty years production intensification dramatically impacted the environment and biodiversity harming the ability of ecosystems to provide services essential for human sustenance and well-being. Agricultural ecosystems receive a wide variety of supporting and regulating services crucial for crop production (e.g. soil fertility or pollination). The enhancement of ecosystem services (ecological intensification) has been proposed as a promising solution to meet the growing demand for agricultural goods, decreasing p
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2

Poveda, Katja. "Multitrophic plant insect interactions in dependence of belowground processes." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976216671.

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3

Shan, Shan. "The controls of nutrient limitation on resource allocation belowground." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami1580078025127756.

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4

Kafle, Dinesh [Verfasser]. "Plant-mediated interactions between spatially and temporally separated above- and belowground herbivores / Dinesh Kafle." Berlin : Freie Universität Berlin, 2016. http://d-nb.info/1117028496/34.

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5

Cope, Colin G. "Understanding above- and belowground interactions within invasion biology: An integrative approach across a forest community." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1528202331073491.

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6

Paris, Carolina Ivon. "Above-belowground effects of the invasive ant Lasius neglectus in an urban holm oak forest." Doctoral thesis, Universitat Autònoma de Barcelona, 2007. http://hdl.handle.net/10803/3680.

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Las hormigas invasoras desplazan a las especies de hormigas nativas y otros artrópodos. Como consecuencia, las interacciones biológicas del sistema invadido y los servicios ecológicos prestados por las especies nativas son modificados. El objetivo de este trabajo fue investigar los efectos de la hormiga invasora Lasius neglectus sobre algunos de los componentes superficiales y subsuperficiales de un encinar urbano y compararlos con los efectos de las hormigas nativas, en particular con Lasius grandis. <br/>Lasius neglectus visita principalmente árboles aislados donde permanece más meses atendi
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7

Clark, Katherine Elizabeth. "Linking aboveground and belowground insect herbivore interactions : a case study with the vine weevil (Otiorhynchus sulcatus)." Thesis, University of Sussex, 2011. http://sro.sussex.ac.uk/id/eprint/6317/.

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Interactions between insect herbivores and host plants are fundamental, shaping both ecosystem functions and community structure. One aspect of insect-plant interactions that has received considerable attention recently is the indirect linkages between aboveground and belowground insect herbivores via a shared host plant. To date, the relationship between a maternal insect aboveground and her soil dwelling offspring has been largely overlooked. This study aimed to examine the interactions between the adult insect and soil dwelling larvae of the vine weevil (Otiorhynchus sulcatus) with referenc
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8

Russell, Morgan Lee. "Belowground Bud Banks of Native, Perennial Grasses and Interactions with Fire in the Northern Great Plains." Diss., North Dakota State University, 2013. https://hdl.handle.net/10365/26983.

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Mixed-grass prairies of the northern Great Plains evolved following frequent disturbances such as drought, fire, and extensive grazing by ungulates. As a result of periodic natural disturbances, native grass reproductive mechanisms have adapted to withstand frequent disturbance. Ninety-nine percent of native perennial grasses reproduction occurs through well-protected and densely structured axillary buds. Since vegetative buds are the primary driver of aboveground growth, bud response to differing seasons and fire return intervals may reveal strategies to enhance bud dynamics. The timing of fi
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9

Reed, Heather Elizabeth. "Effects of fire and plant invasion on aspects of aboveground and belowground interactions in an eastern tallgrass prairie." Diss., Connect to online resource, 2005. http://wwwlib.umi.com/dissertations/fullcit/3165807.

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10

Gan, Huei Ying [Verfasser], Beate [Gutachter] Michalzik, and Susan [Gutachter] Trumbore. "The effects of land use and management on belowground carbon and nutrient interactions / Huei Ying Gan ; Gutachter: Beate Michalzik, Susan Trumbore." Jena : Friedrich-Schiller-Universität Jena, 2019. http://d-nb.info/1217711295/34.

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11

Sørensen, L. I. (Louise Ilum). "Grazing, disturbance and plant soil interactions in northern grasslands." Doctoral thesis, University of Oulu, 2009. http://urn.fi/urn:isbn:9789514291395.

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Abstract Plants and soil organisms are closely linked. Plants are the sole source of carbon in the soil and soil organisms are responsible for recycling of nutrients, making them available for plant growth. To understand the function of a system, it is important to understand the interactions between the soil and plants. These interactions have mainly been studied in temperate areas, with few studies in the arctic and subarctic. The aim of this thesis was to investigate the effect of ecological disturbances in sub- and low-arctic grasslands on soil organisms and plant-soil feedback relationshi
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12

Sabais, Alexander Christian Wolf Verfasser], Stefan [Akademischer Betreuer] Scheu, Nico [Akademischer Betreuer] Blüthgen, Angelika [Akademischer Betreuer] [Schwabe, and Christoph [Akademischer Betreuer] Schüth. "Collembola in a plant diversity gradient: Interactions between the aboveground and belowground system / Alexander Christian Wolf Sabais. Betreuer: Stefan Scheu ; Nico Blüthgen ; Angelika Schwabe-Kratochwil ; Christoph Schüth." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2012. http://d-nb.info/1106115600/34.

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13

Hullot, Olivier. "Approche d'écotoxicologie fonctionnelle par l'étude des interactions sol-plante-annélides en sol contaminé." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPASB012.

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La contamination des sols est un enjeu environnemental majeur. Une grande partie des sols contaminés en Europe le sont par des éléments traces métalliques. Celle-ci peut affecter les organismes édaphiques, avec souvent comme conséquence une diminution des activités biologiques. Pourtant plusieurs études ont montré l’importance des relations dites « belowground-aboveground » liant les communautés souterraines et aériennes des sols. Parmi elles, l’une des plus connues est l’interaction sol – plante – ver de terre. Ces derniers sont connus pour impacter positivement les fonctions écologiques des
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14

Beyer, Friderike Verfasser], Christoph [Akademischer Betreuer] Leuschner, and Dirk [Akademischer Betreuer] [Hölscher. "Fine root traits, belowground interactions and competition effects on the rhizosphere of Fagus sylvatica and Fraxinus excelsior saplings / Friderike Beyer. Gutachter: Christoph Leuschner ; Dirk Hölscher. Betreuer: Christoph Leuschner." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2013. http://d-nb.info/104430622X/34.

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15

Mahon, Michael B. "Soil litter and soil-dwelling invertebrate response to experimental removal of white-tailed deer (Odocoileus virginianus) and Amur honeysuckle (Lonicera maackii)." Miami University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=miami1563282959616797.

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16

Weidlich, Emanuela Wehmuth Alves [Verfasser], and Vicky M. [Akademischer Betreuer] Temperton. "Testing theories for ecological restoration: effects of plant-plant interactions and plant order of arrival on assembly and on above- and belowground productivity / Emanuela Wehmuth Alves Weidlich ; Betreuer: Vicky M. Temperton." Lüneburg : Universitätsbibliothek der Leuphana Universität Lüneburg, 2018. http://d-nb.info/1154307328/34.

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17

Valverde-Barrantes, Oscar Jesus. "A phylogenetic perspective on fine root ecology: assessing the role of root evolution on fine root functional traits and ecological interactions in woody angiosperms." Kent State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=kent1384641579.

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18

Bicharanloo, Bahareh. "Belowground carbon allocation interacting with nutrient availability." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/27287.

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Plants spend a high proportion of their photosynthetically fixed carbon (C) belowground to root biomass, rhizodeposition or to support mycorrhizal fungi in exchange for nutrients while most of this C expenditure is associated with root and hyphal respiration. This thesis aimed to investigate the controls on plants’ C allocation belowground, and what the consequences are for microbial carbon use efficiency (CUE) of soil- vs plant-derived C and for mediating N dynamics. In module system one, four wheat genotypes with variated root traits, biomass and rhizodeposition were grown in pots under two
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19

Lin, Yue. "The role of different modes of interactions among neighbouring plants in driving population dynamics." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-105119.

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The general aim of my dissertation was to investigate the role of plant interactions in driving population dynamics. Both theoretical and empirical approaches were employed. All my studies were conducted on the basis of metabolic scaling theory (MST), because the complex, spatially and temporally varying structures and dynamics of ecological systems are considered to be largely consequences of biological metabolism. However, MST did not consider the important role of plant interactions and was found to be invalid in some environmental conditions. Integrating the effects of plant interactions a
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20

McKenzie, Scott. "An aboveground-belowground herbivore interaction in a woody perennial crop and its response to elevated atmospheric CO2." Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/73333/.

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Interactions between above ground and root-feeding herbivores can be influenced by changes in plant traits, such as tissue chemistry and morphology. Environmental heterogeneity and perturbations also affect these plant-mediated interactions. Climate change is a multi-faceted phenomenon; increases in atmospheric carbon dioxide (CO2) concentrations lead to increased global mean temperature and an associated higher frequency of extreme weather events. These factors can potentially perturb ecosystem function by altering both plant–herbivore and herbivore–herbivore interactions. A detailed understa
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21

Bao, Zhe. "Biotic Interaction of Invasive, Early-Succession Trees and Their Effects on Community Diversity: a Multi-Scale Study Using the Exotic Invasive Ailanthus altissima and the Native Robinia pseudoacacia in the Mid-Appalachian Forest of Eastern United States." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/73303.

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Invasive plants can displace native species, deteriorate native forest, and change plant communities and ecosystem functions. Native plant populations are fundamentally impacted by invasive species because of the interactions between invasive species and native plants. This study focuses on understanding the extent, mechanisms and consequences of interaction between a non-indigenous invader Ailanthus altissima and its functionally similar native species Robinia pseudoacacia in the Mid-Appalachian region, from an individual scale to a regional scale. These two subject species are common and coe
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22

Poveda, Morciniec Katja Andrea. "Multitrophic plant insect interactions in dependence of belowground processes." Doctoral thesis, 2005. http://hdl.handle.net/11858/00-1735-0000-0006-AEAA-8.

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23

Senior, JK. "Evolutionary history can shape belowground ecological interactions in eucalypts." Thesis, 2016. https://eprints.utas.edu.au/23494/1/Senior_whole_thesis.pdf.

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The influence of plant-microbial interactions on the structure and dynamics of native vegetation is gaining increasing attention. Plants may alter (i.e., ‘condition’) soil microbial communities with subsequent consequences for their performance via plant-soil feedbacks. Such feedbacks often vary in direction and magnitude among species and have been linked to the successional state, diversity and structure of temperate and tropical ecosystems. The drivers of variable conditioning and feedbacks are not clear, but recent studies suggest that plant evolutionary history may be a predictor of below
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24

Hsieh, Chia, and 謝嘉. "Above-belowground interactions on soil ecosystem functioning in Taipei urban parks." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/378m6x.

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碩士<br>國立臺灣大學<br>地理環境資源學研究所<br>105<br>Soil ecosystem functions in urban green infrastructures (GIs) could help mitigate the impact of human activities on soil biodiversity and biochemical cycle in urban ecosystems. However, plant-soil interactions on soil ecosystem processes in GIs, especially urban parks, are unclear. In this study, the above-belowground properties and soil dissolved organic matter (SDOM) properties of two habitat types, namely tree with grass (TG) and grass (G), from three subtropical urban parks in Taipei City were investigated from December 2015 to January 2017. Ultraviolet
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25

Poveda, Katja [Verfasser]. "Multitrophic plant insect interactions in dependence of belowground processes / vorgelegt von Katja Poveda." 2005. http://d-nb.info/976216671/34.

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26

Sabais, Alexander Christian Wolf. "Collembola in a plant diversity gradient: Interactions between the aboveground and belowground system." Phd thesis, 2012. https://tuprints.ulb.tu-darmstadt.de/2990/1/Sabais_Dissertation_ULB.pdf.

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During the past few decades, there has been growing understanding that human well-being is fundamentally linked to the state of the environment. The rapid decline of global biodiversity and its consequences for ecosystem functioning therefore has become a focal point of scientific interest and prompted a multitude of biodiversity studies aiming to investigate the complex relationship between plant species richness and ecosystem functioning in terrestrial grassland ecosystems. However, the majority of these studies predominantly focused on the aboveground aspects of terrestrial ecosystems such
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27

Müller-Haubold, Hilmar. "Climate response of above- and belowground productivity and allocation in European beech." Doctoral thesis, 2014. http://hdl.handle.net/11858/00-1735-0000-0022-5FFB-6.

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Die Rotbuche (Fagus sylvatica L.) ist die bestimmende Baumart der potentiell natürlichen Vegetation in den Wäldern Mittel- und Westeuropas die ökonomisch bedeutsamste Laubbaumart Deutschlands. Obwohl diese spät-sukzessionelle Baumart über eine hohe physiologische Toleranz gegenüber einem weiten Spektrum klimatischer Wuchsbedingungen verfügt, wird die Buche gegenüber anderen temperaten Laubbaumarten als relativ trockensensitiv eingeschätzt. Da im Zuge des globalen Klimawandels mit einer Verschlechterung der klimatischen Wasserbilanz und mit einer Zunahme sommerlicher Trockenperioden gerechnet w
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28

Beyer, Friderike. "Fine root traits, belowground interactions and competition effects on the rhizosphere of Fagus sylvatica and Fraxinus excelsior saplings." Thesis, 2012. http://hdl.handle.net/11858/00-1735-0000-0012-DDA4-A.

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29

Brown, ZA. "The effects of elevated carbon dioxide on greenhouse gas emissions from a temperate pasture." Thesis, 2020. https://eprints.utas.edu.au/34798/1/Brown_whole_thesis.pdf.

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Global surface temperatures have been rising since the pre-industrial era and are predicted to continue rising due to the positive radiative forcing of greenhouse gases in the atmosphere. The atmospheric concentration of carbon dioxide (CO\(_2\)), the gas responsible for most of this warming, has increased since the industrial revolution due to the burning of fossil fuels and land use change. The concentration of nitrous oxide (N\(_2\)O), a potent greenhouse gas with substantially higher global warming potential than CO\(_2\) over a 100-y horizon, has similarly increased due to agriculture and
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30

Grubert, Diana. "The soil food web of temperate deciduous forests: litter and root resources as driving factors, and soil fauna effects on ecosystem processes." Doctoral thesis, 2016. http://hdl.handle.net/11858/00-1735-0000-002B-7CE5-1.

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31

Lin, Yue. "The role of different modes of interactions among neighbouring plants in driving population dynamics." Doctoral thesis, 2012. https://tud.qucosa.de/id/qucosa%3A26569.

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The general aim of my dissertation was to investigate the role of plant interactions in driving population dynamics. Both theoretical and empirical approaches were employed. All my studies were conducted on the basis of metabolic scaling theory (MST), because the complex, spatially and temporally varying structures and dynamics of ecological systems are considered to be largely consequences of biological metabolism. However, MST did not consider the important role of plant interactions and was found to be invalid in some environmental conditions. Integrating the effects of plant interactions a
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32

Maheux, Lydia. "Impact de Heterodera glycines sur la réaction de défense du soya (Glycine max) et influence sur la gestion de Aphis glycines dans un contexte climatique actuel et futur." Thèse, 2018. http://hdl.handle.net/1866/21318.

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33

(11186766), Geoffrey M. Williams. "Thousand Cankers Disease of Eastern Black Walnut: Ecological Interactions in the Holobiont of a Bark Beetle-Fungal Disease." Thesis, 2021.

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<p>Eastern black walnut (<i>Juglans nigra</i> L.) ranks among the most highly valued timber species in the central hardwood forest and across the world. This valuable tree fills a critical role in native ecosystems as a mast bearing pioneer on mesic sites. Along with other <i>Juglans</i> spp. (Juglandaceae), <i>J. nigra</i> is threatened by thousand cankers disease (TCD), an insect-vectored disease first described in 2009. TCD is caused by the bark beetle <i>Pityophthorus juglandis</i> Blackman (Corthylini) and the phytopathogenic fungus <i>Geosmithia morbida</i> Kol. Free. Ut. & Tiss. (Bionec
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34

Wong, Johanna W. "An exploration of the molecular signals and their effects on the belowground interaction between Eucalyptus grandis and soil fungi of different lifestyles." Thesis, 2020. http://hdl.handle.net/1959.7/uws:57365.

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The belowground interaction of roots with different microbes largely influences a plants’ survival and performance and their adaptability towards abiotic stresses. Understanding how plants foster beneficial interactions with mutualistic microbes while defending against the invasion of pathogenic microbes has become one of the major focuses in plant research. The interaction between plants and soil microbes are regarded to be largely mediated by the exchange of molecular signals between the two parties. Both plants and soil microbes exude a mixture of compounds including peptides, nuclei acids,
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