Botany (Theses and Dissertations): Recent submissions
Now showing items 81-100 of 129
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Ecological impacts of invasive plants on pollinators : studies on an individual, species and community scale
(Trinity College (Dublin, Ireland). Department of Botany, 2015)Pollination is a critical ecosystem service yet pollinators are experiencing worldwide declines. Although invasive alien species are cited as a major driver of pollinator declines, little is known about how pollinators are ... -
Deep-sea coral reef ecology : feeding mechanisms, community interactions, and habitat associations of deep-sea echinoids
(Trinity College (Dublin, Ireland). Department of Botany, 2014)The ultimate aim of the thesis was to probe into the ecology of deep-sea echinoids in order to contribute newfound information to this topic, as well as develop tools to facilitate ecological work in deep-sea environments. ... -
Investigating genetic variation in species and populations of Salix L. with particular emphasis on wood formation and disease resistance genes
(Trinity College (Dublin, Ireland). Department of Botany, 2014)The genus Salix L. (willows, sallows and osiers) of the Salicaceae consists of dioecious, catkin-bearing trees, shrubs or undershrubs with simple, nearly always alternate leaves. Willows are used as biofuel and biomass ... -
Woodland vegetation change through space and time : impacts of large herbivores
(Trinity College (Dublin, Ireland). Department of Botany, 2014)Semi-natural woodlands are a globally important ecosystem. The functioning of these woodlands are being impacted through a range of anthropogenic activities, which induce vegetation changes, including climate change, ... -
The flora and conservation status of petrifying springs in Ireland
(Trinity College (Dublin, Ireland). Department of Botany, 2015)Petrifying springs are lime-rich water sources which deposit tufa, a soft, porous rock. They constitute a highly specialised habitat with a distinctive floristic composition, typically dominated by bryophytes and often ... -
The relationship between catchment characteristics and lake chemistry in the Republic of Ireland
(Trinity College (Dublin, Ireland). Department of Botany, 2002)The purpose of this thesis was to examine the relationships between catchment characteristics and lake chemistry in the Republic of Ireland. Additional aims were to examine the seasonal variation in water chemistry and, ... -
The occurence of canopy gaps in some semi-natural Irish woodlands and the natural regeneration of tree species therein
(Trinity College (Dublin, Ireland). Department of Botany, 2001)The reported failure of regeneration in British oakwoods and some observations of a dearth of saplings and young trees in Irish woods has prompted concerns about the ability of Irish semi-natural woodland to self-perpetuate. ... -
Soil CO2 fluxes in Irish agricultural systems
(Trinity College (Dublin, Ireland). Department of Botany, 2007)Worldwide concern with climate change and its effects on our future environment requires a better understanding and quantification of the processes contributing to it. Studies on the role of soil processes is needed to ... -
Irish oaks : characterising their biodiversity through molecular and morphological analysis
(Trinity College (Dublin, Ireland). Department of Botany, 2002)Oak populations were sampled across Ireland to investigate the biodiversity of Irish oak. Two species are recognized as being native; Quercus petraea (Matt.) Liebl. and Q. robur L. Oak leaves were analysed for morphological ... -
Chemical ecology and conservation biogeography of Rhododendron ponticum L.
(Trinity College (Dublin, Ireland). Department of Botany, 2015)The general aims of this thesis were two-fold; firstly, to further knowledge on the topic of toxic nectar in plants, utilizing Rhododendron ponticum (and associated taxa) as a model for these investigations; and secondly, ... -
The potential of the duckweed Lemna minor in acid mine drainage : impact assessment and treatment
(Trinity College (Dublin, Ireland). Department of Botany, 2014)Acid mine drainage is a pollutant of global concern. Mining is an ancient activity that has resulted in countless abandoned mining sites due to poor regulation. There are abandoned sites all over the world generating AMD ... -
Pink is the new black : an investigation of antibiotic resistance in wild birds through use of a novel indicator, the Greater Flamingo
(Trinity College (Dublin, Ireland). Department of Botany, 2014)Antibiotics have revolutionized human health care. Given their importance in treating infectious disease and the explosion in their use worldwide, the latter half of the 20th century is often described, within a medical ... -
Biological N₂ fixation and N loss as N₂O and N₂ in a white clover-based system of dairy production
(Trinity College (Dublin, Ireland). Department of Botany, 2014)Pasture-based livestock production systems have a relatively large requirement for nitrogen (N) input compared to other food production systems. These inputs may consist of organic N, mineral N or biologically-fixed N. Of ... -
Ecology and distribution of mechanically dependent plants along a gradient of past hurricane impact
(Trinity College (Dublin, Ireland). Department of Botany, 2015)High energy weather events have been shown to substantially affect forest community dynamics by causing structural and microenvironmental alterations to the affected stand. The degree to which forests respond to storm ... -
Introduced hybrid ash : Fraxinus excelsior x F. angustifolia in Ireland and its potential for interbreeding with native ash
(Trinity College (Dublin, Ireland). Department of Botany, 2011)Fraxinus excelsior L. is the only native ash in Ireland. It has important economic value for timber exploitation. After the introduction of grants by Irish government in the 1990s for planting native broadleaf trees, with ... -
Systematics of Syzygium Gaertner (Myrtaceae) in Indochina (Cambodia, Laos and Vietnam)
(Trinity College (Dublin, Ireland). Department of Botany, 2010)The genus Syzygium (Myrtaceae) is fully revised for Indochina (Cambodia, Laos and Vietnam). The species key, descriptions, typification, ecology, conservation status, phenology, vernacular names, usages, distribution maps, ... -
The impacts of management and landscape context on plants and pollinators in intensive agricultural grasslands
(Trinity College (Dublin, Ireland). Department of Botany, 2011)Agricultural intensification may have caused significant declines in plant and pollinator diversity and pollination services. Efforts to reduce management intensity through the development of novel technologies and funding ... -
Insights into the phenotypical and genetic mechanisms regulating bud burst of temperate trees in relation to climate change
(Trinity College (Dublin, Ireland). Department of Botany, 2012)The work presented here provides a combination of different experimental techniques and different analysis methods in order to gain a deeper understanding of the mechanisms involved in bud burst of temperate trees. Two ... -
Conservation biology of Saxifraga hirculus L. in Ireland
(Trinity College (Dublin, Ireland). Department of Botany, 2012)A perennial herbaceous plant with a wide circumpolar distribution, Saxifraga hirculus L. has a highly fragmented distribution outside the northern Polar Regions. In Europe its range has been reduced dramatically with records ... -
Manipulation of vegetation succession in forestry and applications for sustainable forest management
(Trinity College (Dublin, Ireland). Department of Botany, 2012)This thesis contributes to an improved understanding of how vegetation succession of forestry plantations can be manipulated so that the subsequent successional trajectories contribute to the enhancement of biodiversity ...
