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.
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Showing 1 to 20 of 110 for “"Allometric"”.
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The metabolism of living space : allometric scaling of energy use in UK domestic buildings
Understanding and reducing domestic energy usage is seen as key to achieving national greenhouse gas emission targets, as well ensuring sustainable consumption at a domestic level. Domestic buildings represent a well-defined unit of space with numerous, easily measurable characteristics. They can …
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A Contravention of Established Principles of Interspecific Allometric Metabolic Scaling in Developing Silkworms, Bombyx Mori.
Established interspecific metabolic allometric relationships do not adequately describe the complexity and variable physiological states of developing animals. Consequently, intraspecific allometric relationships of oxygen consumption and carbon dioxide production as a function of body mass; the …
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LINKING ALLOMETRIC SCALING THEORY WITH LIDAR REMOTE SENSING FOR IMPROVED BIOMASS ESTIMATION AND ECOSYSTEM CHARACTERIZATION
… to forest carbon modeling, and examining allometric equations used to estimate biomass stocks in field plots. First, we test controversial theoretical predictions of forest allometry through the mapping of the allometric variability using field plots across the U.S. we find that there is …
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Evolution and development of morphological, allometric, and life history patterns in the spotted hyena (Crocuta crocuta)
My dissertation focuses on how maternal and ecological factors influence growth rate variation, the life history consequences of growth variation, and on the evolution and development of 'reversed' sexual size dimorphism (SSD) in spotted hyenas. My dissertation consists of four chapters following …
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PREDICTION OF HUMAN SYSTEMIC, BIOLOGICALLY RELEVANT PHARMACOKINETIC (PK) PROPERTIES BASED ON QUANTITATIVE STRUCTURE PHARMACOKINETIC RELATIONSHIPS (QSPKR) AND INTERSPECIES PHARMACOKINETIC ALLOMETRIC SCALING (PK-AS)
<p>This research developed validated QSPKR and PK-AS models for predicting human systemic PK properties of three, preselected, pharmacological classes of drugs, namely opioids, β-adrenergic receptor ligands (β-ARL) and β-lactam antibiotics (β-LAs) using pertinent human and animal systemic PK …
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Mapping shrub biomass in a boreal continental fen
… (AGB) in peatlands. This thesis summarizes how allometric equations and unmanned aerial vehicles (UAV) can be used to map AGB across a 2-hectare peatland site. Prior to using UAVs to measure AGB, accurate field measurements are required to calibrate and validate the UAV-AGB model. We developed …
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Fruit-based allometry of Strychnos madagascariensis, S. spinosa, and Trichilia emetica in the savanna woodlands of the Umhlabuyalingana municipality, KwaZulu-Natal, South Africa
… of the yields of the fruits. However, allometric equations that enable the quantification of fruit biomass of trees from the wild are non-existent. The present study had four objectives. The first was to develop fruit based allometric equations for Strychnos madagascariensis and S. …
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Estimating Aboveground Biomass (AGB) Throughout the Pacific
… has been studied on multiple scales, in which allometric equations were developed to find relationships between AGB and tree parameters. However, despite the presence of AGB studies for specific sites in the Pacific Islands, there is a lack of AGB comparative studies or data syntheses focused on …
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On the Space Filling Nature of Trees: Clarifying and Validating a Model of Plant Architecture With Laser Scans of Tree Crowns
… physiological functioning of individuals using allometric theory for the scaling of size and performance. This dissertation is focused on clarifying and validating the West, Brown and Enquist (WBE) model in order to mechanistically predict allometric relationships in tree crowns. We advance WBE …
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How environments shape ornament morphological evolution: bringing perspective to a century of inconsistent sexual allometry analysis
… sexual structures always evolve similar allometric patterns, and how the environment might prevent this from happening. The second chapter evaluates how locomotion in different environments cause related species to evolve variable sexual allometries. Among a highly social group of …
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EVALUATING THE PERFORMANCE OF BIOMETRIC APPROACHES FOR VERIFICATION AND MONITORING IN COMMERCIAL FOREST CARBON ACCOUNTING
… from forest inventories and species-specific allometric models. However, stock-centric carbon baselines fail to capture all carbon sources and sinks, and dynamic meteorological conditions drive carbon uptake and forest growth. A combination of high temporal and spatial resolution monitoring of …
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Latitudinal variation in plankton size spectra along the Atlantic Ocean
… relations, has provided the basis for using an allometric approach to investigate the metabolic balance of the Atlantic Ocean and to identify the main drivers of trophic status in the plankton community. <br/><br/>Samples were collected during three Atlantic Meridional Transect (AMT) cruises …
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Seasonal and Spatial Variation in Leaf Area Index, Litter Production, and Light Levels in Myrica Cerifera,Shrub Thickets Across a Barrier Island Chronsequence
… through leaf litter collection and use of allometric relationships between stem diameter and leaf area. The oldest of the four thickets had the lowest LA1 and litter production throughout the year. Peak LA1 measurements with the portable integrating radiometer ranged from 2.0 ± 0.2 to 4.0 ± …
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The Allometry of Giant Flightless Birds
… are ten times the mass of the largest birds. Allometric equations generated for anseriforms and ratites suggest mid-shaft femur circumference is the best measure to use in estimating avian body mass. The small sample size of extant ratites makes mass estimate extrapolation to larger extinct …
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Deep water parapagurid hermit crabs: their distribution, abundance, population structure and associations in the Southern Benguela
… (CL) length. S. dimorphus males had positive allometric major right chelipeds, while P. bouvieri cheliped lengths were positively allometric in males, and negatively allometric in females. All collected P. bouvieri occurred in pseudoshells, but S. dimorphus showed a real shell occupancy rate …
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Osteohistology and Growth of Edmontosaurus and Assessment of Life History Changes in Hadrosaurid Dinosaurs
… of hadrosaurid dinosaurs did not undergo allometric growth through ontogeny and provide no compelling evidence to support the previously hypothesized ontogenetic gait shift in hadrosaurids. Size-frequency distributions underestimate age and overestimate growth rates. However, when paired …
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Developmental, ecological and biological drivers of macroevolutionary trajectories of postcranial morphological diversification in bats
… and growth, 2) quantifying differences in allometric trajectories of postcranial prenatal development between major bat lineages, 3) measuring the presence and magnitude of fluctuating asymmetry across humeral prenatal development, 4) evaluating the role of foraging and roosting behaviour …
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A study on above- and belowground biomass and carbon stocks as well as sequestration of mountain birch (Betula pubescens Ehrh.) along a chronosequence in southern Iceland
… excavated trees formed the dataset to establish allometric biomass functions of Icelandic mountain birch. The functions were statistically fitted by using numerical nonlinear regression in Matlab. Tree inventories (n=519) were made at four study sites, whereof three were planted stands and one …
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Gene action involved with reproduction and growth of brain and muscle in weight-selected lines of chickens
… greater for line HH than LL. In Experiment 4, allometric growth and cellular content of brains were measured in normal and dwarf chickens from lines HH and LL and reciprocal F₁ crosses from hatch to maturity. Allometric slopes were similar for lines HH and LL with significant heterosis. Within …
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