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Dissertations / Theses on the topic 'Allometria'

Author: Grafiati

Published: 24 April 2022

Last updated: 30 July 2025

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1

SBARRA, PAOLA. "Contributo della geomorfologia quantitativa alla caratterizzazione morfologica e morfodinamica di alcuni paesaggi italiani." Doctoral thesis, La Sapienza, 2005. http://hdl.handle.net/11573/917391.

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2

Tannenbaum, Stacey Jill. "Pharmacokinetic principles of allometry and allometric, pharmacokinetic, and pharmacodynamic analyses of cocaine and ethanol." Diss., The University of Arizona, 2001. http://hdl.handle.net/10150/280341.

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This dissertation deals with two major topics: allometric (or interspecies) scaling of pharmacokinetic parameters, and the interaction of cocaine and ethanol. These topics are tied together by the inclusion of allometric analyses of both cocaine and ethanol. Currently, to make initial predictions of human pharmacokinetic parameters using allometry, allometric slopes of 0.75, 1.0, or 0.25 (for clearance, volume, and half-life, respectively) are applied to the appropriate parameter value measured in a single species. Chapter 1 demonstrates the validity of this practice, and, using literature dat

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3

Buchmann, Carsten. "Modelling the structuring of animal communities in heterogeneous landscapes : the role of individual home range formation, foraging movement, competition and habitat configuration." Phd thesis, Universität Potsdam, 2012. http://opus.kobv.de/ubp/volltexte/2012/5903/.

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This thesis aims at a better mechanistic understanding of animal communities. Therefore, an allometry- and individual-based model has been developed which was used to simulate mammal and bird communities in heterogeneous landscapes, and to to better understand their response to landscape changes (habitat loss and fragmentation).<br>Diese Doktorarbeit strebt ein besseres mechanistisches Verständnis von Tiergemeinschaften an. Dafür wurde ein allometrie- und individuen-basiertes Modell entwickelt und dazu benutzt, Säugetier- und Vogelgemeinschaften in heterogenen Landschaften zu simulieren, und

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4

Prendin, Angela Luisa. "Environmental effects and biophysical constraints on xylem physiology and tree growth in conifers in the Alps." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3423237.

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Trees are impressive long-living organisms that continuously increase in size by many orders of magnitude during ontogeny by accumulating xylem biomass in stem, branches and roots. While growing taller, trees continuously adjust the xylem structure to achieve an optimal balance of carbon costs for the competing biomechanical and hydraulic requirements. One of the main function of the xylem structure is the delivery of the water from the roots up to the leaves. This must be maintained during the ontogeny, when the hydrodynamic resistance increase due to the increase in the xylem path length. H

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5

Paquin, Viviane. "Allometric gender allocation in Ambrosia artemisiifolia L." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ55924.pdf.

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6

Tang, Huadong. "Allometric scaling for predicting human drug clearance." Diss., The University of Arizona, 2005. http://hdl.handle.net/10150/290158.

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Various modified methods have been proposed in response to criticisms regarding the practical applicability of allometric scaling, which is one of the most widely used approaches in predicting human drug clearance based on data from animal species. The major problems encountered among allometric methods in predicting human drug clearance are addressed in this dissertation. In chapter 2, a large data set for allometric scaling (n = 138) was collected from the literature and was categorized according to the following criteria: oral or systemic clearance; elimination routes; protein or non-protei

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7

Senarathna, Senarathna Mudiyanselage Dona Kalyani Ganga. "Pharmacokinetics and allometric scaling of antimalarial drugs." Thesis, Curtin University, 2015. http://hdl.handle.net/20.500.11937/1139.

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Allometric scaling was found as a plausible technique for dose determination in children. Permeability and P-glycoprotein efflux transport of antimalarials were determined using in-vitro Caco-2 cells. Mefloquine showed P-glycoprotein inhibition. Amodiaquine, artesunate and artemisone were not P-glycoprotein substrates or inhibitors. Methylene-blue showed some P-glycoprotein mediated efflux. Permeability was high for amodiaquine and artemisone, medium for mefloquine and artesunate and low for methylene-blue. P-glycoprotein was up-regulated when exposed to dihydroartemisinin/artemisone in combin

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8

Bowers, Jennifer L. "Evolution and development of allometric relationships in 'Antirrhinum'." Thesis, University of East Anglia, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.443088.

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9

Castilho, L. V. "The developmental basis of allometry." Thesis, University of Cambridge, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597361.

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This thesis investigates the role played by molecular signalling pathways in organ size determination in <i>Drosophila melanogaster. </i>First, the analysis of wing mosaics generated by mitotic recombination showed that both the insulin receptor <i>InR</i> and its downstream target <i>chico</i> have a strong and largely local autonomous reducing effect on wing size. Position of the mutant tissue in the mosaic wings determines the intensity of size deficits, since the posterior wing compartment is more severely affected than the anterior. A second insulin receptor was analysed and shown to perf

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10

Fritz, Julia. "Allometrie der Kotpartikelgröße von pflanzenfressenden Säugern, Reptilien und Vögeln." Diss., lmu, 2007. http://nbn-resolving.de/urn:nbn:de:bvb:19-75540.

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11

Stock, Jay Theodore. "Structural and allometric variability in human long bone diaphyses." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ31870.pdf.

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12

Jackson, Brandon Edward. "The allometry of bird flight performance." The University of Montana, 2010. http://etd.lib.umt.edu/theses/available/etd-03102010-100229/.

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<p>Avian flight performance decreases with body size in birds, but previous work has been unable to define the underlying mechanism. Wingbeat frequency is hypothesized to ultimately constrain flight performance via muscular mechanical power output because frequency decreases with body size. I measured maximal burst take-off and vertical accelerating flight in 32 species of songbirds (Passeriformes), including the entire range of body mass in this clade (5-900 g). Jump forces against the ground were recorded with a forceplate. High-speed digital video captured the movement of morphological land

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13

Jackson, Brandon Edward. "The allometry of bird flight performance." Diss., [Missoula, Mont.] : University of Montana, 2009. http://etd.lib.umt.edu/theses/available/etd-03102010-100229.

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14

Mansfield, Fiona Kerrie. "Allometric scaling in bacterial populations : cell size, distribution and diversity." Thesis, Imperial College London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424704.

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15

HAGIHARA, Akio, 秋男萩原, Taketo YOKOTA, 岳人横田, Kazuharu OGAWA, and 一治小川. "Allometric Relations in Hinoki (Chamaecyparis obtusa (Sieb. et Zucc.) Endl.) Trees." 名古屋大学農学部付属演習林, 1993. http://hdl.handle.net/2237/8694.

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16

Wirkes, André Franz [Verfasser]. "Allometrie des intrazellulären Surfactants der Lunge bei Säugetieren / André Franz Wirkes." Gießen : Universitätsbibliothek, 2013. http://d-nb.info/1065320639/34.

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17

Kritzinger, Werne Jacobus. "Allometric description of ostrich (Struthio camelus var. domesticus) growth and development." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6469.

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Thesis (MScAgric (Animal Sciences))--University of Stellenbosch, 2011.<br>Includes bibliography.<br>ENGLISH ABSTRACT: The ostrich industry has overcome many challenges since it originated. However, it is still vulnerable to sudden changes in customer preferences and economic cycles. As feed costs are the greatest expense in ostrich production, optimising feed formulations is vital. This will be possible if the growth and development of the ostrich can be simulated by modelling software. Various studies were conducted to describe ostrich growth in the form of equations that can be used in m

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18

Goulão, João Pedro Pinto. "Influence of metabolic stress in bovine fetal development : an allometric study." Master's thesis, Universidade de Lisboa, Faculdade de Medicina Veterinária, 2021. http://hdl.handle.net/10400.5/21168.

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Dissertação de Mestrado Integrado em Medicina Veterinária<br>Dairy cows go through great metabolic change during the transition period, with several detrimental side effects on health and productivity. The possibility that the stress they undertake on the final phase of gestation can also influence the unborn calf or even have carryover effects that will impact him after birth is not one that should be ignored. The main goal of this study was to determine if calves born from metabolic stressed cows prioritized the development of vital organs, brain and heart specifically, over the development

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19

Zhang, Da. "Evaluation of the Allometric Exponents in Prediction of Human Drug Clearance." VCU Scholars Compass, 2014. http://scholarscompass.vcu.edu/etd/3533.

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Background. Allometric scaling (AS) is widely used in predicting human clearance (CL) based on animal data. Substantial prediction errors have been commonly observed and various modifications to AS have not provided a broad reliable improvement. In this study, an extensive data set was assembled including animal and human systemic CL and physiochemical properties. The allometric exponents were calculated based on multiple species AS and single-species AS methods. The correlations between the allometic exponents and physiochemical properties were evaluated in an attempt to find covariates that

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20

Dang, Thi Thu Huong, Huu Thu Do, Minh Quang Trinh, Hung Manh Nguyen, Thi Tuyet Xuan Bui, and Tien Dung Nguyen. "Allometric relations between biomass and diameter at breast height and height of tree in natural forests at Me Linh Station for Biodiversity, Vinh Phuc Province, Vietnam." Technische Universität Dresden, 2018. https://tud.qucosa.de/id/qucosa%3A33298.

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Stem diameter at breast height (D1.3m) and tree height (H) are commonly used measures of tree growth. Based on correlation analysis between biomass of stem, branches and leaves and stem diameter and height of tree we can identify allometric equation for predicting biomass and carbon sequestration of the vegetation. This study was carried out in the natural forests of Me Linh Station for biodiversity to develop allometric equation between biomass and diameter at breast height and height of tree. The study results indicated that twenty tree species dominate in natural forests in Me Linh Station

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21

Tang, Evonne P. Y. (Evonne Pui Yue). "The allometry of algal growth and respiration." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22815.

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A knowledge of the allometry of algal growth and respiration can be applied to biomass-size distribution models which are in turn used in the prediction of fish yield and ecosystem studies. However, the scaling exponents reported in the literature are variable. This variation may be attributed to differences in the expression of cell size and phylogeny, but could also reflect small sample size which underlie most published regressions. This thesis establishes the allometry of algal growth and respiration based on a larger sample taken from the literature, and evaluates the effects of differenc

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22

Hackney, John W. "Morphometric variability and allometric relationships in the seagrass Thalassia testudinum in Florida Bay /." Electronic version (PDF), 2003. http://dl.uncw.edu/etd/2003/hackneyj/johnhackney.pdf.

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23

Lai, Can. "Factors affecting tree crown allometries and consequences on forest structure." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3427298.

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Tree crown architecture is crucial for light capture, it determines the competitive advantage over neighbouring trees and related to the demographic process of forests. Geographic variation of crown architecture is impressive: from flat-top crown in tropical regions to narrow-deep in boreal regions. However, the assessment of crown traits across geographic areas is still lacking. In this research, I would like to figure out the relationship of crown properties with size by the simply effective power law method, namely allometry. With the aim of quantifying the relationship at broad scales, w

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24

George, Keith Phillip. "Left ventricular morphology : the impact of menstrual cycle phase, oral contraceptive use, body size, body composition and athletic training." Thesis, Manchester Metropolitan University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246262.

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25

Wiff, Rodrigo. "Predicting food consumption and production in fish populations : allometric scaling and size-structured models." Thesis, University of St Andrews, 2010. http://hdl.handle.net/10023/935.

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Life-history traits in fish populations are highly correlated. A subset of these correlations are called allometric scaling, they refer to biological processes which can be described using body size as independent variable. Particularly, allometric scaling related with food consumption (Q) and biomass production (P) has gained the attention of ecologists for several decades. This thesis proposes a quantitative framework for food consumption, which allows both the identification of the mechanisms underlying the allometric scaling for Q and the development of a predictive model for consumption t

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26

Smith, Joanna McLellan. "Effects of allometric growth and toe pad morphology on adhesion in hylid tree frogs." Thesis, University of Glasgow, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398660.

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27

Tod, Steven Peter. "What drives invertebrate communities in a chalk stream : from trophic relationships to allometric scaling." Thesis, Queen Mary, University of London, 2007. http://qmro.qmul.ac.uk/xmlui/handle/123456789/28174.

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Despite a slow start freshwater meiofauna research is now gathering pace. Evidence is accumulating which indicates the importance of their inclusion in lotic metazoan studies. Here I contribute towards this research effort by conducting an investigation of meiofauna and macrofauna from a chalk stream. I sampled meiofauna for a 19 month period, and macrofauna for a 12 month period between April 2004 and October 2005 from the subsurface, macrophyte stands and gravel beds. The chalk stream community was highly diverse with 57 taxa identified from the subsurface and 186 from the benthos. Meiofauna

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28

Gowda, Vishwas, and Vishwas Gowda. "Allometric Scaling of Brain, Brain Components and Neurons with Body Size of Social Bees." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/621438.

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Animals in general vary immensely in body size, which greatly affects their morphology, physiology, survival, and nutritional requirements. The nervous system is also affected by variation in body size, which, in turn, shapes the perception of environmental stimuli and the behavior of animals. Comparative studies of vertebrates suggest that larger brains and their integrative centers comprise more and generally larger neurons (Jerison, 1973; Kaas, 2000), but much less is known about brain - body size relations in invertebrates. Closely related social bee species are well suited to study correl

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29

Brown, Calum. "The metabolism of living space : allometric scaling of energy use in UK domestic buildings." Thesis, Lancaster University, 2015. http://eprints.lancs.ac.uk/81388/.

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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 also be perceived as being the terminal, end-use elements of a global resource distribution network, as defined by Jarvis et al., (2015). Such networks have drawn comparisons to biological organisms in how they acquire, transform, use and dispose of resources from their surrounding environment through

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30

Suzuki, Satoshi. "Study on skull allometry in the genus Mustela (Carnivora: Mustelidae)." 京都大学 (Kyoto University), 2012. http://hdl.handle.net/2433/157817.

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31

Loh, Eugene E.-M. "Allometry Of Fixed Orthodontic Appliances - A Study Of Bracket Thickness." Thesis, Faculty of Dentistry, 1993. http://hdl.handle.net/2123/4242.

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32

Blossman-Myer, Bonnie Burggren Warren W. "A contravention of established principles of interspecific allometric metabolic scaling in developing silkworms, Bombyx mori." [Denton, Tex.] : University of North Texas, 2007. http://digital.library.unt.edu/permalink/meta-dc-3704.

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33

Blossman-Myer, Bonnie. "A Contravention of Established Principles of Interspecific Allometric Metabolic Scaling in Developing Silkworms, Bombyx Mori." Thesis, University of North Texas, 2007. https://digital.library.unt.edu/ark:/67531/metadc3704/.

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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 respiratory quotient; the function of the silk cocoon; and body composition were investigated for each distinct developmental stage of the silkworm, Bombyx mori. Whole animal O2 consumption in Bombyx ranged from 0.00064 + 0.000047 ml O2 .hr-1 at larval instar I to 0.77 + 0.06 ml O2 .hr-1 in pre-pupal,

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34

Wei, Xiaofang, Subramania I. Sritharan, Ramanitharan Kandiah, and John Osterberg. "Allometric Equations for Predicting Above-ground Biomass of Tamarix in the Lower Colorado River Basin." University of Arizona (Tucson, AZ), 2012. http://hdl.handle.net/10150/556805.

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Allometric equations are essential for quantitative study of aboveground biomass. The paper presents an effort in acquisition and validation of allometric equation for salt cedar (Tamarix spp.), a species that has been criticized for its invasion and negative impacts on the riparian ecosystem in the western United States. In the summers of 2009 and 2011, biomass destructive samplings were conducted to harvest and collect salt cedar samples at Cibola National Wildlife Refuge, Arizona. The allometric equations were developed by establishing the relationship between aboveground biomass with avera

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35

Lechthaler, Silvia. "The hydraulic architecture of the plants: study of the allometric relations in stem and leaves." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3426838.

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The xylem in plants is formed by interconnected dead cells that allow the flow of water from the roots to the leaves. The ascent of sap is mainly passive and it is driven by water evaporation from the mesophyll cell walls in the leaf. The water evaporation generates capillary suction on the menisci at the micro-porous of cell walls, causing negative hydrostatic pressure that propagates down the water column in the xylem. Due to plants grow in height the length of the hydraulic path increases progressively posing the question whether the hydraulic resistance increases accordingly. There is evid

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36

Bennett, P. M. "Comparative studies of morphology life history and ecology among birds." Thesis, University of Sussex, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379453.

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37

Schreer, Jason Franklin. "Diving behavior of air-breathing vertebrates, allometry, classification, and interspecific comparisons." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/nq22235.pdf.

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38

Schneider, Florian Dirk [Verfasser], Ulrich [Akademischer Betreuer] Brose, and Nico [Akademischer Betreuer] Blüthgen. "Predator diversity and ecosystem functioning: An allometric approach / Florian Dirk Schneider. Betreuer: Ulrich Brose ; Nico Blüthgen." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2012. http://d-nb.info/1106257219/34.

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39

Roberts, David Gordon. "An allometric analysis of the cardiac and pulmonary systems of the blue wildebeest (Connochaetes taurinus taurinus)." Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/62568.

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This study describes the growth of the blue wildebeest (Connochaetes taurinus taurinus) cardiac and pulmonary systems with ontogenetic allometric equations, contributing an additional species to the small collection of ontogenetic allometric studies on mammals. Allometric equations of the form 𝑦𝑦=𝑎𝑎𝑥𝑥𝑏𝑏 were derived to describe the changes in cardiac or pulmonary measurements (𝑦𝑦), with change in body mass and heart or lung mass (𝑥𝑥). The body masses used in these equations were calculated from external body measurements, to compensate for temporary changes in individual body mass. Different

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40

Bailey, Susan J. "Climate change : carbon partitioning in plants." Thesis, University of Plymouth, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263166.

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41

HernaÌndez, Antonio Valencia. "Assessment of allometry and length-at-age in the growth of fishes." Thesis, University of Liverpool, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275048.

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42

Hood, William Gregory. "Landscape allometry of oligohaline tidal channels of the lower Chehalis River, Washington /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/5399.

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43

Levitch, Linda Charlotte. "Ontogenetic allometry of the postcranial skeleton in platyrrhines, with special emphasis on its relationship to the evolution of small body size in the callitrichidae /." Thesis, Connect to this title online; UW restricted, 1987. http://hdl.handle.net/1773/6467.

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44

Yáñez, Enrique Alejandro [UNESP]. "Desenvolvimento relativo dos tecidos e características da carcaça de cabritos Saanen, com diferentes pesos e níveis nutricionais." Universidade Estadual Paulista (UNESP), 2002. http://hdl.handle.net/11449/104975.

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Made available in DSpace on 2014-06-11T19:33:33Z (GMT). No. of bitstreams: 0 Previous issue date: 2002-10-04Bitstream added on 2014-06-13T19:23:39Z : No. of bitstreams: 1 yanez_ea_dr_jabo.pdf: 472965 bytes, checksum: 1e3d450b0ba9483da550c43e4a8cf69f (MD5)<br>Foram realizados dois experimentos utilizando cabritos machos da raça Saanen. O primeiro teve por objetivo avaliar o desenvolvimento relativo dos componentes do peso vivo (PV), dos cortes comerciais e dos tecidos de caprinos leiteiros em crescimento. Tomando como referência o corte perna, o tecido ósseo apresentou crescimento precoce, o

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45

Ehnes, Roswitha [Verfasser], Ulrich [Akademischer Betreuer] Brose, and Nico [Akademischer Betreuer] Blüthgen. "Allometry – Relations to Energy and Abundance / Roswitha Ehnes. Betreuer: Ulrich Brose ; Nico Blüthgen." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2014. http://d-nb.info/1108094430/34.

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46

Adam, Peter James. "Morphological evolution in Cetacea skull asymmetry and allometry of body size and prey /." Diss., Restricted to subscribing institutions, 2007. http://proquest.umi.com/pqdweb?did=1375523531&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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47

Price, Charles Anthony. "Scaling the Diversity of Botanical Form and Function." Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/194373.

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Recent theoretical and empirical advances, in particular the fractal branching model of West, Brown and Enquist (WBE model), have highlighted the importance of exchange surfaces in understanding the integration of whole plant form, and functional traits. Key insights have arisen from an increased understanding of how the properties of distributive vessel networks influence whole plant metabolic and physiological traits. Here I show that an extension of WBE model, one in which network geometry is continuously variable, provides a robust foundation to understand the diversity of scaling relation

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48

Genet, Astrid. "Quantification of fuelwood potentials from French beech forests : updated allometric modeling tools and robustness to differences in soil fertility." Chambéry, 2010. http://www.theses.fr/2010CHAMS040.

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Un jeu d'équation de biomasse robuste a été développé pour le hêtre sur des arbres provenant de trois pays Européens. Les paramètres des modèles sont apparus âge-dépendants, et l'introduction de l'âge des peuplements dans les équations a permis d'en augmenter significativement la performance pour tous les compartiments aériens de l'arbre. Cet effet a été relié à des changements de forme et de densité du bois dans le tronc, et à des changements dans la conductance hydraulique des tissus pour le houppier. L'introduction de l'âge des peuplements parmi les variables prédictives du modèle est la cl

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49

Brym, Zachary T. "An Allometric Approach to Evaluate Physiological and Production Efficiencies in Tree Size for Tart Cherry and Apple Orchard Systems." DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/4970.

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Improving production efficiency is a major challenge for modern orchard systems. The primary response in horticulture is to develop high-density orchard systems that use dwarfing rootstocks and intense management strategies to maintain small tree size. As development and evaluation of novel orchard systems may help improve understanding of plant physiology for the development of high-density systems. The effect of tree size and architecture on physiological and production efficiency was evaluated for tart cherry (Prunus cerasus, P. mahaleb) and apple (Malus spp.) orchard systems using a physio

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50

Regis, Koy William. "Allometry of sexual size dimorphism in turtles| A comparison of mass and length data." Thesis, Tarleton State University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10118551.

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<p> The macroevolutionary pattern of Rensch’s Rule, i.e., positive allometry of sexual size dimorphism, has had mixed support in turtles. Using the largest carapace length dataset and the only large-scale body mass dataset heretofore assembled for this group, we determine (a) whether turtles conform to Rensch’s Rule at the order, suborder, and family levels, and (b) whether inferences regarding allometry of sexual size dimorphism differ based on choice of body size metric used for analyses. We compiled large databases of mean body mass and carapace length for males and females of a

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