Browsing Botany (Theses and Dissertations) by Date of Publication
Now showing items 1-20 of 129
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Evidence of former tree growth at Clonsast
(Trinity College (Dublin, Ireland), 1957)Six thousand years ago practically all the ground now covered by peat in the area investigated at Clonsast, County Offaly, was woodland. The main object of the research was to trace the disappearance of woodland due to ... -
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 ... -
Historical and contemporary effects of fire on native woodland vegetation of Killarney, S.W. Ireland
(Trinity College (Dublin, Ireland). School of Botany, 1991)Summary: This research investigates the Post-glacial history of fire in the Killarney area, and describes how heathland burning practices have affected the present-day extent and species composition of the native oakwoods. ... -
The palaeoecology of Clara Bog, Co. Offaly
(Trinity College (Dublin, Ireland). Department of Botany, 2000)This thesis contains the results of an investigation into the palaeoecology of a midlands raised bog, Clara Bog, Co. Offaly. It was undertaken to investigate the development of the bog and some of its features. The thesis ... -
A taxanomic revision of tribe Ocimeae Dumort. (Labiatae) in continental South East Asia
(Trinity College (Dublin, Ireland). Department of Botany, 2001)This thesis aims to provide a complete account of the tribe Ocimeae for Thailand, Laos, Vietnam, Cambodia and Burma. In addition, the relevant generic problems of Ocimeae in continental South East Asia are outlined, and ... -
Multi-proxy evidence from bogs for environmental change in Ireland over the last 1,200 years
(Trinity College (Dublin, Ireland). Department of Botany, 2001)In order to understand recent and future climate change, it is necessary to document how climates have varied in the past. Literature and research concerning climate change of the last 1,200 years, namely the Medieval Warm ... -
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. ... -
The effects of elevated CO2 and water stress on C2 pasture species (Blepharis linariifolia and Cenchrus biflorus) native to Sudan
(Trinity College (Dublin, Ireland). Department of Botany, 2001)A doubling of the pre-industrial atmospheric CO2 concentration (~280 ppmv) is expected by the middle of this century, if the current rate of growth in the annual emission of fossil carbon is maintained. The effects of ... -
Physiological studies of salt tolerance in Plantago maritima (L.)
(Trinity College (Dublin, Ireland). Department of Botany, 2001)The studies described in this thesis were concerned with evaluating the salt tolerance mechanisms of Plantago maritima (L.). This species, a perennial herb, is found growing in various habitats including saline coastal ... -
Revision of the Liverwort genus Asterella P. Beauv. (Marchantiales, Aytoniaceae) in Continental Eurasia, Malesia and Japan
(Trinity College (Dublin, Ireland). Department of Botany, 2001)This study constitutes a taxonomic revision of the genus Asterella in Eurasia, Asterella belongs to the family Aytoniaceae in the Chambered Liverworts (Marchantiales). It is poorly understood taxonomically and a worldwide ... -
A systematic revision of the Santalaceae R. Br. of Southeast Asia
(Trinity College (Dublin, Ireland). Department of Botany, 2001) -
A systematic revision of the Uvaria L. group (Annonaceae) in Continental Asia
(Trinity College (Dublin, Ireland). Department of Botany, 2001)The goal of this research project has been to complete a taxonomic revision of Uvaria L. (Annonaceae) and its affiliates in Continental Asia. Research was based primarily at the Trinity College Herbarium. Research visits ... -
Morphological and molecular systematics of the genus Miscanthus anderss
(Trinity College (Dublin, Ireland). Department of Botany, 2001)Increasing fuel costs and a depletion of the earth's natural energy resources have lead to a global search for alternative sources of renewable energy. In response, the "European Miscanthus network" funded by the European ... -
The flora and vegetation of Pitcairn Island : its phytogeography and conservation
(Trinity College (Dublin, Ireland). Department of Botany, 2001)Good decisions cannot be made about the conservation of nature if we do not know what it is, where it is, and in what abundance. The aim of this thesis was to provide an integrated approach to the conservation of Pitcairn ... -
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, ... -
Systematics of the woody bamboos (tribe Bambuseae)
(Trinity College (Dublin, Ireland). Department of Botany, 2002)In this thesis the monophyly of the tribe Bambuseae and the inter-relationships of its constituents were assessed using comparative morphological character analysis and sequence analysis of four non-coding DNA regions, ... -
The exploitation of soil organic phosphate by grassland plants
(Trinity College (Dublin, Ireland). Department of Botany, 2002)This study was concerned with the availability of soil organic phosphate (Po) to plants. To address this issue semi-natural Irish grassland soils and plants were used. Greenhouse experiments were carried out in which soil ... -
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 ... -
Large trees, supertrees and the grass phylogeny
(Trinity College (Dublin, Ireland). Department of Botany, 2003)During the last decade, the advances of molecular techniques have profoundly changed the way scientists build and use phylogenetic trees. Vast fields of research as different as ecology, evolution of development, genomics, ... -
Biogeography and speciation of the genus Peperomia Ruiz & Pavón in Eastern Polynesia
(Trinity College (Dublin, Ireland). Department of Botany, 2003)There are 17 Peperomia laxa within the remote islands of South-eastern Polynesia, of which 14 are endemic. Expeditions (S. Waldren 1991, S. Waldren & N. Kingston 1997, U. Bradley & N. Kingston 2000) have resulted in the ...