Botany (Theses and Dissertations): Recent submissions
Now showing items 21-40 of 129
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A study of taxonomy of Salicornia L. in Ireland
(Trinity College (Dublin, Ireland), 1964)Introduction: The genus Salicornia is a notoriously difficult group. The number and nature of the taxa recognised, especially within the annual section of the genus, has varied considerably according to the differing ... -
Environmental and nutritional sustainability potential of legume-based food production pathways
Delivering sustainable nutrition is a key challenge for the global food sector, including in Europe, where 50% of the population is overweight, 20% obese, and where food production and consumption accounts for 30% of the ... -
Influential factors of cereal crop landscapes on aphidophagous syrphid communities
(Trinity College Dublin. School of Natural Sciences. Discipline of Botany, 2021)Aphidophagous syrphids are a common group of insects in agriculture, attributed with benefiting farmers with pollination and pest control services. Farmed landscapes are also believed to have potential in supporting and ... -
Making biodiversity their business
(Trinity College Dublin. School of Natural Sciences. Discipline of Botany, 2021)Biodiversity loss has emerged as a threat to humanity equal to that of climate change. Urgently addressing this loss requires transformational change across many sectors of society. Global studies have highlighted the ... -
A taxonomic revision of the genus Henckelia Spreng. (Gesneriaceae) in Thailand and surrounding countries
(Trinity College Dublin. School of Natural Sciences. Discipline of Botany, 2020)Henckelia was described in 1817 by Sprengel. The name Henkelia honours a German administrator and amateur botanist, L.V.F. Henckel von Donnersmarck (1785-1861). Currently Henckelia contains 68 species globally. This ... -
Phylogenetics of paclitaxel biosynthesis genes in Taxus baccata, Taxus hybrids and allies
(Trinity College Dublin. School of Natural Sciences. Discipline of Botany, 2020)Taxus L. is a genus of trees and shrubs with high value in horticulture,and in medicine as a source of the anticancer drug Paclitaxel. The taxonomy of the group is highly complex due to the lack of diagnostic morphological ... -
Endophytic diversity of Fraxinus excelsior L. (European Ash) and its interaction with the dieback pathogen Hymenoscyphus fraxineus
(Trinity College Dublin. School of Natural Sciences. Discipline of Botany, 2020)European ash, Fraxinus excelsior, has huge economic and environmental value on the island of Ireland for forestry and ecosystem services. Given the rapid spread of Hymenoscyphus fraxineus, ash dieback disease, since its ... -
The impact artificial sub-surface drainage on greenhouse gas emissions, change in soil carbon storage and nutrient losses from grassland
(Trinity College Dublin. School of Natural Sciences. Discipline of Botany, 2019)Irish dairy production sector has started an expansion process while achieving a 20% reduction in the National greenhouse gas (GHG) emissions and fulfilling the Water Framework Directive. Moreover, the 30% of Irish dairy ... -
Soil carbon sequestration during the establishment-phase of Miscanthus x giganteus : a study on three spatial scales
(Trinity College (Dublin, Ireland). Department of Botany, 2013)In recent years the use of biomass for energy production has become an increasingly important measure for mitigating global change. While national and EU legislation strongly advocate the further development of the bioenergy ... -
Ecophysiology in introduced Impatiens species
(Trinity College (Dublin, Ireland). Department of Botany, 2011)This thesis aims to improve knowledge of invasion processes through investigation of the invasive strategies of congeneric Impatiens species that vary in invasive status in Ireland. Since a range of physiological traits ... -
Systematics of the Thai Vitaceae
(Trinity College (Dublin, Ireland). Department of Botany, 2010)The Vitaceae family (excluding Tetrastigma (Miq.) Planch.) are fully revised for Thailand. A total of 48 species in nine genera are revised as follows: Ampelocissus Planch., Ampelopsis Michx., Cayratia Juss., Cissus L., ... -
Systematics of Arundinelleae and Andropogoneae subtribes Chionachninae, Dimeriinae and Germainiinae (Poaceae:Panicoideae) in Thailand
(Trinity College (Dublin, Ireland). Department of Botany, 2009)This thesis has provided a comprehensive taxonomic account of tribe Arundinelleae, and subtribes Chionachninae, Dimeriinae and Germainiinae of the tribe Andropogoneae in Thailand. Complete floristic treatments of these ... -
Pollinators and pollination in changing agricultural landscapes : investigating the impacts of bioenergy crops
(Trinity College (Dublin, Ireland). Department of Botany, 2013)Pollinators, and the pollination services they provide, are essential for the reproduction of the majority of angiosperms, but also for a wide variety of crops. However pollinators are increasingly threatened by many human ... -
Turlough vegetation communities : links with hydrology, hydrochemistry, soils and management
(Trinity College (Dublin, Ireland). Department of Botany, 2012)This thesis documents the vegetation communities of 22 turloughs from Counties Galway, Clare, Roscommon and Mayo. In total, 28 vegetation communities were identified, classified and described. These communities ranged from ... -
Nitrous oxide emmissions from Irish arable soils : effects of reduced tillage, cover crop and conventional tillage
(Trinity College (Dublin, Ireland). Department of Botany, 2010)This study was carried out in Carlow, Ireland from August 2007 - August 2009 to investigate nitrous oxide (N2O) emissions from a spring barley field under different soil management regimes using a static closed chamber ... -
The effects of land-use change and management on soil nitrous oxide emissions from Miscanthus x giganteus
(Trinity College (Dublin, Ireland). Department of Botany, 2011)The use of bioenergy crops as fossil fuel replacements has expanded in the recent past and is likely to continue to grow in the near future as countries attempt to meet greenhouse gas reduction targets outlined in various ... -
Isolation and characterisation of novel fungal root endophytes from Elymus repens (Poaceae) for resistance to Fusarium, Gaeummanomyces and Pyrenophora
(Trinity College Dublin. School of Natural Sciences. Discipline of Botany, 2019)Barley diseases are predominantly controlled using genetic resistance and fungicides. However, pathogen populations are becoming increasingly tolerant to the active compounds in fungicides and the European Union is endorsing ... -
The role of biodiversity in the functioning of plant-pollinator interactions in semi-natural grasslands
(Trinity College (Dublin, Ireland). Department of Botany, 2013)The importance of biodiversity for healthy ecosystem functioning and the provision of ecosystem services is well recognized and loss of biodiversity is increasingly being recognised as a major driver of ecosystem change. ... -
Nitrous oxide emissions associated with land use change to bioenergy crops Miscanthus x giganteus and Phalaris arundinacea
(Trinity College (Dublin, Ireland). Department of Botany, 2013)Bioenergy crops are an increasingly popular alternative to fossil fuels for electricity and heat generation due to their substantial yields combined with low inputs of resources. As these crops are characterised by low ... -
Predator-prey allometry across body size and interaction dimensionality
(Trinity College (Dublin, Ireland). Department of Botany, 2015)Predator-prey interactions are an important evolutionary driver of species' form and diversity, and are a central driver of ecosystem structure. However, the context dependent nature of interactions between predators and ...
