Botany: Recent submissions
Now showing items 201-220 of 319
-
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 ... -
An investigation of natural and anthropogenic factors influencing species richness and distribution in woodland & hedgerow habitats of north county Dublin
(Trinity College (Dublin, Ireland). Department of Botany, 2011)In Ireland, hedgerows are estimated to cover an area roughly 2-3 times that of deciduous woodland on an island-wide basis (Webb 1985); however, to date, the processes involved in the formation of hedgerow plant communities ... -
Quantifying woodland resource usage in the Irish midlands using archaeological and palaeoecological techniques
(Trinity College (Dublin, Ireland). Department of Botany, 2012)This thesis examines charcoal methods in relation to archaeological sites and woodland resource usage using a variety of anthracological and palaeoecological approaches as well as literary evidence at different spatial and ...
