NDLTD logo NDLTD Union Catalog and Global ETD Search

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 91 for “"Herbarium"”.

  1. Studi pengujian metode isolasi DNA dari spesimen herbarium Rafflesia

    Santoso, HeriUniversitas Islam Negeri Maulana Malik Ibrahim2013

    … dapat dilakukan adalah isolasi DNA dari spesimen herbarium. Penelitian ini mengunakan metode deskripsi kuantitatif yang bertujuan untuk memberikan informasi mengenai pengujian metode isolasi DNA dari spesimen herbarium Rafflesia. Tiga metode yang diujikan adalah Kit Promega, Kit Plant DNA Mini, …

    malang Repository record

  2. Herbarium infrastructure development and ecological applications of specimens using geographic information systems

    Miller, Ryan Joseph2008

    Geographic Information Systems (GIS) allow for herbarium data to be used for new scientific research and also for the greater efficiency of the traditional uses of herbaria. My research uses the resources of both the herbarium at the University of Tennessee at Chattanooga (UCHT) and partnering …

    utc Repository record

  3. Using digitized herbarium specimens to predict potential distributions of Tennessee's historical angiosperm species

    Rylander, Erica2021

    … feasible. Here, SDMs are trained using digitized herbarium specimens to identify suitable habitat and therefore, the potential distribution of 16 historical plant species in Tennessee. The ultimate goal of this work is to provide conservation managers with an effective tool for guiding sampling …

    utc Repository record

  4. Soils associated to herbarium plants: a resource to address the temporal evolution of plant-associated microbiomes

    Grasso, GianlucaUniversità degli Studi di Torino2024

    unito Repository record

  5. Phenological responses of British orchids and their pollinators to climate change: an assessment using herbarium and museum collections

    Robbirt, Karen MaryUniversity of East Anglia2012

    … British orchids and flight in their pollinators. Herbarium specimens of O. sphegodes collected in the UK between 1848 and 1958 were compared to direct observation of peak flowering time in one population located in Southern England between 1975 and 2006. The response of flowering time to variation …

    east-anglia Repository record

  6. Spatial and temporal variation in stomatal response to climate: a case study of modern and herbarium samples of Salix

    Tunnicliff, LauraUniversity of Hull2013

    … will be made possible by using samples from Hull herbarium, which contains specimens dating as far back to the early 1800s, in combination with corresponding historical climate data.

    hull Repository record

  7. BENCHMARKING AND CREATION OF A DEEP LEARNING COMPUTER VISION DATASET IN THE TAXONOMIC REVISION OF THE PALO SANTO TREE HERBARIUM SPECIMENS

    Valko, Matthew2024

    gmu

  8. Exploring the past and the present in order to predict the future: herbarium specimens, field data and extinction probability for conservation managers

    Cowell, CarlyDepartment of Environmental and Geographical Science2018

    … in protected areas. This thesis explores herbarium data from a number of points of view, and looks at the value of herbarium collections to plant species survival at a fine scale within protected areas. Work was carried out in national parks in the Fynbos Biome, a biodiversity hotspot in …

    cape-town Repository record

  9. A Floristic Study of Ha Ha Tonka State Park, Camden County, Missouri

    Farnsworth, Barbara Jane

    … County, Missouri) was compiled from existing herbarium specimens (Ozark Regional Herbarium and Missouri Department of Natural Resources), previous collections made by Marilyn Groves and Rick Humphrey, and new collections by Barbara Farnsworth that have been deposited in the Ozark Regional …

    mo-state Repository record

  10. The Vascular Flora of Wayne County, Mississippi

    McNair, Daniel M2015

    … from field collections, previously collected herbarium specimens, and field observations. These belong to 556 genera and 165 families. Four of these species represent first recorded occurrences in the state of Mississippi: <em>Blyxa</em> <em>aubertii</em> Rich., <em>Gomphrena serrata</em> Pav. …

    usm Repository record

  11. Locating herbarium specimens in online digital repositories to be used in future retrospective analysis of metal pollutants from pre- and post-1960s in the most polluted city in the United States, Chattanooga, Tennessee

    Stepaniuk, Megon2021

    Here we find and analyze herbarium specimens collected throughout the last 100 years from the greater Chattanooga area to future screen them for the presence and concentration of metals. Chattanooga was declared the most polluted city in America in 1969 from the years 1961-1965 due to unchecked …

    utc Repository record

  12. A taxonomic revision of the spiny members of subfamily celastroideae (Celastraceae) in Southern Africa

    University of Pretoria1995

    … distribution, plus voucher specimens. A list of herbarium specimens examined is provided. Photographs of herbarium specimens, flowers, fruits and transverse sections of the leaves, as well as distribution maps and a cladogram are included.

    pretoria Repository record

  13. Tylopilus e Phlebopus (Boletales) em áreas de Mata Atlântica do Nordeste Brasileiro.

    Silva, Anderlechi Barbosa da.2016

    … in data. Collections and subsequent revisions of herbarium specimens of Tylopilus and Phlebopus genera deposited at Lauro Pires Xavier (JPB) and other herbaria, including identification, illustrations and analysis of the wealth of these taxa has a great relevance due to the short notice of them. …

    brazil-ufpb Repository record

  14. Biogeochemical studies in South East Asia by use of herbarium material : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Chemistry at Massey University

    Wither, Ewan David1977

    massey

  15. A REVISION OF THE GENUS ODONTONEMA (ACANTHACEAE)

    Baum, Vicki M.1982

    … present revision is based on an examination of herbarium material found in both New and Old World herbaria, a numerical analysis of macromorphological features, and an examination of pollen morphology. The four groups within Odontonema defined above were established after the numerical analysis, …

    maryland Repository record

  16. The systematics of Leptosphaeria species found on the Rosaceae

    Huhndorf, Sabine MaritaUniversity of Illinois at Urbana-Champaign2011

    … were not considered because only type or herbarium specimens were studied.

    uiuc Repository record

  17. Mapping Plant Biodiversity Hotspots at the County Scale: A New Tool for Establishing Resource Conservation Strategies

    Haydu, Kristie2012

    … map is based on distribution data collected from herbarium specimens of San Luis Obispo County’s rare flora. These data were extracted from the Hoover Herbarium at Cal Poly and manually digitized into GIS. We built a model with GIS to identify, locate, and quantify the resultant hotspots from the …

    calpoly Repository record

  18. The Ecology, Evolution, and Conservation of Stone Oaks (Lithocarpus)

    Neto-Bradley, BarbaraUniversity of Cambridge2025

    … 2 addresses a growing taxonomic knowledge gap in herbarium collections, which is particularly accentuated in highly biodiverse regions. It uses Lithocarpus as a case study to develop automated plant identification from vegetative characters using reflectance spectra and evaluates its performance …

    cambridge Repository record

  19. A Vascular Flora of the Sacatar Trail Wilderness, Sierra Nevada, California

    Pivetti, Kimberly Schaefer2026

    … and generate an annotated checklist supported by herbarium specimens. Over the course of this study in 2022 and 2023, 77 days were spent in the field and a total of 1,505 herbarium specimens were collected. With the addition of 578 historical collections, a vascular plant inventory was produced …

    claremont Repository record

  20. A re-assessment of the species boundaries in Merciera A.DC.

    Cupido, Christopher NelsonDepartment of Biological Sciences2000

    … Vegetative and floral characters obtained from herbarium specimens were analyzed. The results of the cluster analysis and principal coordinate analysis support the recognition of six species, M. /ept%ba, M. brevifolia, M. tenuifolia, M. eck/oniana, M. azurea, and M. tetra/oba. M. azurea is …

    cape-town Repository record

Page 1 of 5