Now showing items 831-850 of 11510

  • Biodiversity assessment of freshwater fishes : Thailand as a case study 

    Khachonpisitsak, Salinee (University of St Andrews, 2012-11-29) - Thesis
    A key challenge in biodiversity is: How many species are there on earth? This issue is especially acute in poorly surveyed regions with high diversity, particularly Southeast Asia that also experiences many limitations ...
  • Biodiversity change in the Cerrado following invasive pine tree establishment 

    Rocha Kortz, Alessandra (University of St Andrews, 2017-12-07) - Thesis
    How do newly established species interact with existing assemblage members to alter local biodiversity? This question is especially topical given growing concerns about increased temporal turnover levels relative to ...
  • Biodiversity of freshwater fishes of Trinidad and Tobago, West Indies 

    Phillip, Dawn Arlene Teresa (University of St Andrews, 1998) - Thesis
    The proximity of the speciose South American continent to Trinidad and Tobago ensures that these islands have a rich and dynamic fauna. According to the equilibrium theory of island biogeography (MacArthur & Wilson ...
  • Biogenesis pathways of RNA guides in archaeal and bacterial CRISPR-Cas adaptive immunity 

    Charpentier, Emmanuelle; Richter, Hagen; van der Oost, John; White, Malcolm F (2015-05-20) - Journal item
    CRISPR-Cas is an RNA-mediated adaptive immune system that defends bacteria and archaea against mobile genetic elements. Short mature CRISPR RNAs (crRNAs) are key elements in the interference step of the immune pathway. A ...
  • Biogeochemical significance of pelagic ecosystem function : an end-Cretaceous case study 

    Henehan, Michael; Hull, Pincelli; Penman, Donald; Rae, James William Buchanan; Schmidt, Daniela (2016-05) - Journal article
    Pelagic ecosystem function is integral to global biogeochemical cycling, and plays a major role in modulating atmospheric CO2 concentrations (pCO2). Uncertainty as to the effects of human activities on marine ecosystem ...
  • Biogeography of the global ocean's mesopelagic zone 

    Proud, Roland; Cox, Martin James; Brierley, Andrew S. (2017-01-09) - Journal article
    The global ocean’s near-surface can be partitioned into distinct provinces on the basis of regional primary productivity and oceanography [1]. This ecological geography provides a valuable framework for understanding spatial ...
  • A biogeography of the mesopelagic community 

    Proud, Roland Hudson (University of St Andrews, 2016-11-30) - Thesis
    There are a large number of research vessels and fishing vessels equipped with echosounders plying the world ocean, making continual observations of the ocean interior. Developing data collation programmes (e.g. Integrated ...
  • A biographical and critical study of the life and writings of Sir David Dalrymple, Lord Hailes 

    Carnie, Robert Hay (University of St Andrews, 1954) - Thesis
    The name of Sir David Dalrymple, Lord Hailes has always been known to students of Scottish history by reason of his "Annals of Scotland", long accepted as a fundamental reference book for that period of Scottish history ...
  • The biographical imagination in Moritz's Anton Reiser : a chronotopic reading 

    Cusack, Andrew Thomas (2015-06) - Journal article
  • The biological bases of conformity 

    Morgan, T.J.H.; Laland, K.N. (2012-06-14) - Journal article
    Humans are characterized by an extreme dependence on culturally transmitted information and recent formal theory predicts that natural selection should favor adaptive learning strategies that facilitate effective copying ...
  • Biological diversity of fish communities : pattern and process 

    Magurran, A. E.; Khachonpisitsak, S.; Ahmad, A. B. (2011-12) - Journal article
    For over 150 years, ecologists have been striving to explain fundamental patterns of biological diversity, such as the observation that communities invariably consist of common and rare species, and to unravel the processes ...
  • Biological diversity of freshwater fishes in small streams in peninsular Malaysia 

    Ahmad, Amirrudin Bin (University of St Andrews, 2012) - Thesis
    Peninsular Malaysia has a diverse flora and fauna, much of which is yet to be documented. The freshwater fishes are one important group that have received little attention. Accordingly, the overarching goal of my study ...
  • Biological overlap of attention-deficit/hyperactivity disorder and autism spectrum disorder : evidence from copy number variants 

    Martin, Joanna; Cooper, Miriam; Hamshere, Marian L.; Pocklington, Andrew; Scherer, Stephen W.; Kent, Lindsey; Gill, Michael; Owen, Michael J.; Williams, Nigel; O'Donovan, Michael C.; Thapar, Anita; Holmans, Peter (2014-07) - Journal article
    Objective: Attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) often co-occur and share genetic risks. The aim of this analysis was to determine more broadly whether ADHD and ASD share ...
  • Biological regulation of atmospheric chemistry en route to planetary oxygenation 

    Izon, Gareth; Zerkle, Aubrey L.; Williford, Kenneth; Farquhar, James; Poulton, Simon; Claire, Mark W. (2017-03-28) - Journal article
    Emerging evidence suggests that atmospheric oxygen may have varied before rising irreversibly ∼2.4 billion years ago, during the Great Oxidation Event (GOE). Significantly, however, pre-GOE atmospheric aberrations toward ...
  • The biological response of foraminifera to ocean acidification 

    Khanna, Nikki (University of St Andrews, 2014) - Thesis
    Elevated atmospheric concentrations of carbon dioxide (CO₂), partly driven by anthropogenic activity, are decreasing the pH of the oceans. This thesis aimed to assess the biological response of foraminifera to ocean ...
  • Biological significance of sperm whale responses to sonar: comparison with anti-predator responses 

    Curé, Charlotte; Isojunno, Saana; Visser, Fleur; Wensveen, Paul J.; Sivle, Lise D.; Kvadsheim, Petter H.; Lam, Frans-Peter A.; Miller, Patrick (2016-10-06) - Journal article
    A key issue when investigating effects of anthropogenic noise on cetacean behavior is to identify the biological significance of the responses. Predator presence can be considered a natural high-level disturbance stimulus ...
  • The biology and ecology of benthic foraminifera inhabiting intertidal mudflats 

    Austin, Heather Anne (University of St Andrews, 2003) - Thesis
    Benthic foraminifera inhabiting the mudflats of the Eden Estuary, NE Scotland, exhibited a single annual peak in abundance at both high (270 individuals 10 cm⁻²) and low shore (210 individuals 10 cm⁻²) intertidal ...
  • The biology of South African Bryde's whales 

    Penry, Gwenith S. (University of St Andrews, 2010-06-23) - Thesis
    The biology of South African Bryde’s whales (Balaenoptera brydei/edeni), with a focus on the inshore form, was investigated through estimates of abundance and survival rate, seasonality of occurrence and variation in ...
  • Biology, physiology and gene expression of grasshopper Oedaleus asiaticus exposed to diet stress from plant secondary compounds 

    Huang, Xunbing; Ma, Jingchuan; Qin, Xinghu; Tu, Xiongbing; Cao, Guangchun; Wang, Guangjun; Nong, Xiangqun; Zhang, Zehua (2017-08-17) - Journal article
    We studied the role of plant primary and secondary metabolites in mediating plant-insect interactions by conducting a no-choice single-plant species field experiment to compare the suitability, enzyme activities, and gene ...
  • Biomarkers of isoflavone intake : validity at high intakes 

    Mackinnon, L. Jay (University of St Andrews, 2007-06) - Thesis
    Isoflavones are biologically active plant chemicals (phytoestrogens) which are ordinarily present in human diets. There is considerable research interest in their potential to prevent or treat several chronic diseases. ...