Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 109 for “"Plant diversity"”.
-
Plant diversity, preference, and psychological well-being
… associations when the vegetation density and diversity are increased. A growing body of research investigated the relationships among plant diversity in natural landscapes, aesthetic perceptions, and health outcomes. These studies, however, reported mixed effects—positive, no relation, and …
-
GENOMICS FOR WILD AND MEDICINAL PLANT DIVERSITY STUDIES
… are a fundamental asset in investigating genetic diversity, evolutionary history and adaptive potential of populations. During this doctorate, we aimed at developing genomic resources for non-model, medicinal plant species in order to facilitate research in biodiversity genomics, flower …
-
The Influence of Plant Diversity on Soil Physical Properties in Grasslands.
The scale of biodiversity loss facing our planet has prompted many scientists to explore the potential consequences for ecosystems, and the goods and services that they provide. A favoured approach for investigating such impacts of species loss is to experimentally address the result of a reduction …
-
Patterns of plant diversity and their management across South African Rangelands
Forbs dominate southern Africa's rangeland plant diversity, but have been ignored in favour of grasses that are important for livestock production. To facilitate better conservation management I examined the interaction between patterns of diversity, forb recruitment and disturbance effects across …
-
Effects of plant diversity on the stability of natural grassland ecosystem functioning
Contains fulltext : 175733.pdf (Publisher’s version ) (Open Access)
-
Patterns and Disturbance-Induced Drivers of Plant Diversity and Endemism on High Elevation Islands
… to our understanding of the drivers of plant diversity, endemism and speciation by using empirical, experimental and theoretical approaches. I introduce and define the concept of high elevation islands (HEI), which – in my opinion – are ideal research objects to address ecological and …
-
An Investigation into the role of Allelopathy in influencing plant diversity around Lantana Camara groves
… alien species have become a serious threat to plant biodiversity in many parts of the world. Globally the threat to biodiversity due to invasive alien species is considered second only to that of habitat loss. Invasive species are thus a serious impediment to conservation and sustainable use of …
-
Relationships between loblolly pine (Pinus taeda L.) yield and woody plant diversity in Virginia Piedmont plantations
… on loblolly pine (<i>Pinus taeda</i> L.), woody plant diversity, and wildlife habitat quality in Virginia Piedmont plantations 12-14 and 24-27 years of age. The responses of loblolly pine and competing woody vegetation in plantations 12-14 years of age were analyzed at 8 levels of competition …
-
Plant diversity and its effects on populations of cucumber beetles and their natural enemies in a cucurbit agroecosystem
… 2) relationships between target insects and plant species. In both years populations striped and spotted cucumber beetles and Pennsylvania leatherwings (only in 1995) increased significantly and Diptera decreased significantly in the direction of the crop. The strength of these relationships …
-
Effects of Water Table Depth and Edaphic Characteristics on Plant Diversity in a Southern Mississippi Pitcher Plant Bog
… table depth and soil characteristics have on plant species richness and species composition within pitcher plant bogs across seasons. Eight piezometers were installed at random distances to monitor long-term water table depth and pressure fluctuations along a ~710-meter line transect …
-
Effects of Burning and Cutting on Plant Diversity on Ozark Cedar Glades in Stone and Taney County, Missouri
This study was designed to monitor changes in plant diversity in Missouri Ozark glades where eastern red cedar (Juniperus virginiana) was cut with the use of a chainsaw, but not removed, and the glade was subsequently burned. Glades in Missouri are rocky openings within forested habitats …
-
Spatial models of plant diversity and plant functional traits : towards a better understanding of plant community dynamics in fragmented landscapes
… the main drivers of the current rapid loss of biodiversity. In face of this threat, ecological research needs to provide predictions of communities' responses to fragmentation as a prerequisite for the effective mitigation of further biodiversity loss. However, predictions of communities' …
-
Effects of hydrology-altering site preparation and fertilization/release on plant diversity and productivity in pine plantations in the coastal plain of Virginia
Biological diversity, or biodiversity, is declining on a global scale at unprecedented rates. These declines are largely the result of human activities and resource use. Intensive forestry is often cited as a contributing factor in biodiversity declines. Because forestry practices are being placed …
Page 1 of 6