Browsing Biology, Department of by Title
Now showing items 282-301 of 396
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Microalgae Cultivation on Wastewater and Genetic Modifications to Increase Triacylglycerol Production
Microalgae are photosynthetic microorganisms that can grow in a variety of environments. They have become a popular feedstock for the production of biofuels, high-value chemicals, and nutraceuticals. One of the main products ... -
Microsatellite variability in four contemporary rhinoceros species : implications for conservation
(2008-07-08)Rhinoceroses are arguably the most endangered of all large mammal taxa. In order for ongoing conservation of this species to be successful, it is crucial to accurately characterize the remaining genetic diversity for all ... -
Migratory timing, fitness, and behaviour in a Neotropical migrant songbird: insights from long-term data and experiments
(2012-09-25)Migratory birds face the distinct challenge of travelling between widely separated and environmentally distinct areas for their breeding and non-breeding periods. They may be faced with different pressures at different ... -
Molecular and Biochemical Characterization of Sucrose Synthase from Developing Castor Oil Seeds
(2016-04-28)Sucrose synthase (SUS) is the major sucrolytic enzyme of developing fruits, seeds, and tubers responsible for establishing sink strength while allocating imported photosynthate into specific biosynthetic pathways. While ... -
Molecular characterization of age-related genes in Drosophila melanogaster
(2009-02-09)Aging, characterized by a time-dependent functional decline, eventually results in the death of an organism. Unfortunately, this complex biological phenomenon is poorly understood. In order to dissect the molecular changes ... -
Molecular Characterization of Arabidopsis Plastid Rhomboid Proteins
(2015-04-14)Rhomboid protease genes have been found in the majority of sequenced genomes. Rhomboid proteins control various cellular mechanisms such as cellular development, quorum-sensing, immune system evasion, and mitochondrial ... -
Molecular cloning and characterization of the allatostatin receptor in the cockroach Diploptera punctata
(2008-04-24)Allatostatins (ASTs) are neuropeptides that inhibit the biosynthesis and release of juvenile hormone from the corpora allata (CA) of various insects including the cockroach Diploptera punctata. We hypothesized that a similar ... -
Molecular Identification and Messenger RNA Levels of a Monocarboxylate Transporter (MCT) in Fundulus Heteroclitus, a Hypoxia Tolerant Teleost Fish
(2009-09-03)Monocarboxylate transporters (MCTs) are bi-directional symporters that couple proton movement to a variety of glycolytic metabolites, including lactate and pyruvate. As such, MCTs not only play a crucial role in pH ... -
Moth pollination, low seed set, and vestigialization of attractive floral traits in Abronia umbellata (Nyctaginaceae)
(2012-09-05)Flowering plants display remarkable phenotypic diversity, especially in reproductive structures, much of which is thought to be associated with pollination by animals. Pollination syndromes are collections of floral traits ... -
Motif-Based Evidence for a Link Between a Plastid Translocon Substrate and Rhomboid Proteases
(2010-05-31)Of the organisms with sequenced genomes, plants appear to possess the most rhomboid protease-encoding genes. However, our knowledge of processes in plants that involve Regulated Intramembrane Proteolysis (RIP) and rhomboid ... -
A Multi-Proxy Investigation of Ecological Changes Due to Multiple Anthropogenic Stressors in Muskoka-Haliburton, ONTARIO, Canada
(2012-09-28)Freshwater ecological issues are increasingly being recognized within the context of multiple stressors, even though relatively little is known about the limnological and biological consequences of the interactions between ... -
Natural Movements of Smallmouth Bass and Their Response to Tournament Displacement Within the Eastern Basin of Lake Ontario
Smallmouth Bass (Micropterus dolomieu) are one of the most popular species targeted by angling tournaments in North America, particularly in the Great Lakes region. Tournament anglers target the largest fish in these ... -
Natural Selection on Phenology Across an Elevational Gradient in Seasonality
Many populations are locally adapted to their environment, but across an environmental gradient, trade-offs among phenotypic traits may result in a failure to adapt. Species exist across a seasonal gradient, which can ... -
No Evidence of Sampling Bias in a Comparison of Two Common Avian Capture Methods
(2015-08-20)A common assumption underlying many biological studies is that the data we collect from a subset of individuals are representative of the broad population of interest. However, in studies of free-ranging animals, different ... -
Not my brother’s keeper: A thought experiment for Hamilton’s rule.
(Elsevier, 2009)The now popular ‘selfish gene’ view defines evolutionary fitness at the gene levele in terms of the number of gene copies residing in future generations (or propelled from previous generations). Yet, most current biology ... -
ON THE APPLICATION OF THE THEORY OF ISLAND BIOGEOGRAPHY AND ITS MODERN EXTENSIONS TO SUBMARINE BANK COMMUNITIES
This thesis explores the application of a traditionally terrestrial-based ecological theory, the Theory of Island Biogeography (TIB), to a large marine ecosystem. Decades of testing of this theory have led to various ... -
Optimisation of Cadmium Selenide Quantum Dot Biosynthesis in Saccharomyces Cerevisiae and the Role of Glutathione
(2015-10-06)The biosynthesis of quantum dots has been explored as an alternative to traditional physicochemical methods; however, relatively few studies have determined optimal synthesis parameters. Saccharomyces cerevisiae sequentially ... -
Optimization and Purification of Cadmium Sulfide Quantum Dots Biosynthesized by the Fungus Fusarium Oxysporum
(2016-04-28)Cadmium sulfide (CdS) quantum dots have been synthesized extracellularly by the fungus Fusarium oxysporum when treated with CdSO4 in aqueous conditions. The quantum dots produce an emission range primarily between 450 and ... -
Origins of Genetic Variation and Population Structure of Foxsnakes Across Spatial and Temporal Scales
(2011-01-11)Understanding the events and processes responsible for patterns of within species diversity, provides insight into major evolutionary themes like adaptation, species distributions, and ultimately speciation itself. Here, ... -
A Paleolimnological and Modeling Investigation of Water Quality and Biological Changes in Algonquin Park Lakes in Response to Multiple Stressors
Algonquin Park (herein called the “Park”) is one of only two parks in Ontario that allows private cottages, with the first leases offered in 1905. In total, 22 lakes in the Park have a total of 303 cottage lots in their ...