subject:(Iridescence)

University of California – San Diego

1. VanderSchuit, Maya. Soft Wave, Electric Soul.

Degree: Visual Arts, 2019, University of California – San Diego

URL: http://www.escholarship.org/uc/item/82v6q5xp

Soft Wave, Electric Soul is an MFA thesis exhibition of recent work by Maya VanderSchuit. The mixed-media installation uses the surfaces of digital video projections and iridescent materials to explore the body’s phenomenological relationship to real and virtual spaces.

Subjects/Keywords: Art history; iridescence

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

VanderSchuit, M. (2019). Soft Wave, Electric Soul. (Thesis). University of California – San Diego. Retrieved from http://www.escholarship.org/uc/item/82v6q5xp

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

VanderSchuit, Maya. “Soft Wave, Electric Soul.” 2019. Thesis, University of California – San Diego. Accessed February 27, 2021. http://www.escholarship.org/uc/item/82v6q5xp.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

VanderSchuit, Maya. “Soft Wave, Electric Soul.” 2019. Web. 27 Feb 2021.

Vancouver:

VanderSchuit M. Soft Wave, Electric Soul. [Internet] [Thesis]. University of California – San Diego; 2019. [cited 2021 Feb 27]. Available from: http://www.escholarship.org/uc/item/82v6q5xp.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

VanderSchuit M. Soft Wave, Electric Soul. [Thesis]. University of California – San Diego; 2019. Available from: http://www.escholarship.org/uc/item/82v6q5xp

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University

2. Lin, Xiayang. Causes of iridescence in natural gem materials.

Degree: 2015, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/27246

► Iridescence is so highly prized in gem materials that gemologists have fabricated techniques that artificially impart a play of colors to solids. Iridescence may be… (more)

▼ Iridescence is so highly prized in gem materials that gemologists have fabricated techniques that artificially impart a play of colors to solids. Iridescence may be caused by one of two processes: the interference of light by thin films or through diffraction by periodic substructures. Therefore, manmade gems with rainbow effects can be created by coating non-iridescent crystals with thin metal films (as with “flame-aura” quartz), or by synthesizing solids with modulated microstructures. However, naturally iridescent gemstones are rare and therefore highly valued. For this study, we have explored the cause of iridescence in a gem quality hematite from João Monlevade, Minas Gerais, Brazil and natural quartz crystals from the Jalgaon District, India. Iridescent hematite, also known as “rainbow hematite”, was investigated with field-emission scanning electron microscopy, X-ray energy-dispersive spectroscopy, atomic force microscopy, and synchrotron X-ray diffraction. This study reveals that rainbow hematite has a microstructure that consists of spindle-shaped hematite nanocrystals with minor aluminum and phosphorus. The nanorods are 200-300 nm in length and 50-60 nm in width, and they are arranged in three orientations rotated by 120º with respect to each other and stacked layer by layer to form the bulk crystal. The distances between adjacent parallel spindle-shape particles in the same layer are in the range of 280 – 400 nm, generating a diffraction grating for visible light. The sub-structure is apparent on all freshly fractured surfaces, indicating that it is not merely an exterior surface coating. Rather, we interpret the periodic sub-structure as the result of crystal growth by oriented aggregation of hematite nanorods. The iridescent quartz specimens occur as euhedral quartz crystals within chalcedonic geodes that filled cavities in the Deccan Trap basalts. The quartz crystals exhibit strongly expressed terminal faces, and iridescence is visible only on the smaller z {011} faces and not on the r {101} faces. Our scanning electron microscopy ruled out the existence of a thin film on the iridescent faces and suggested a fine-scale substructure. AFM imaging revealed that the iridescent z faces exhibit periodic ridges, and the distance between the ridges varies from 400 nm to 700 nm, generating a diffraction grating for visible light. On the other hand, the non-iridescent r faces are quite flat with no apparent ridges observable by AFM. We interpret the modulated surface topography on the z faces as the result of preferential dissolution. Previous investigators have hypothesized that the iridescence in quartz is associated with Brazil twinning. Thus, we employed focused ion beam lift-out and transmission electron microscopy to determine whether Brazil twins were concentrated at the ridge boundaries. However, instead of Brazil twin boundaries, we observed periodic planar defects parallel to the c axis. The regularly spaced planar defects might have formed by the episodic injection of silica-rich fluids into the host… Advisors/Committee Members: Peter J Heaney, Thesis Advisor/Co-Advisor.

Subjects/Keywords: iridescence; quartz; hematite; gemstone; diffraction grating

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lin, X. (2015). Causes of iridescence in natural gem materials. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/27246

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lin, Xiayang. “Causes of iridescence in natural gem materials.” 2015. Thesis, Penn State University. Accessed February 27, 2021. https://submit-etda.libraries.psu.edu/catalog/27246.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lin, Xiayang. “Causes of iridescence in natural gem materials.” 2015. Web. 27 Feb 2021.

Vancouver:

Lin X. Causes of iridescence in natural gem materials. [Internet] [Thesis]. Penn State University; 2015. [cited 2021 Feb 27]. Available from: https://submit-etda.libraries.psu.edu/catalog/27246.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lin X. Causes of iridescence in natural gem materials. [Thesis]. Penn State University; 2015. Available from: https://submit-etda.libraries.psu.edu/catalog/27246

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology

3. Risseeuw, Clarice (author). Flavobacteria's Structural Colour: Characterizing, Capturing and Communicating the Temporal and Iridescent Appearance of Flavobacteria.

Degree: 2021, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:a266b583-9668-400b-91ef-2cb7064defa5

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Flavobacteria could become a sustainable alternative for the colouring industry by using them to grow colours on artefacts, as they are capable of creating dazzling… (more)

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Flavobacteria could become a sustainable alternative for the colouring industry by using them to grow colours on artefacts, as they are capable of creating dazzling structural colour. To contribute to this development, the temporal and iridescent appearance is characterized, captured and communicated within this graduation project. The appearance of naturally grown Flavobacteria on marine growth medium is characterized regarding its size, iridescence and dominant colour. This is done by capturing colonies of Flavobacteria every 8 hours of their lives from different angles. It turns out the surface area grows quadratically; the colony appears the brightest when looking at the retroreflection from a height of 45° degrees; the colony reaches its green colour with red edges within 24 hours. A setup is created to capture samples of Flavobacteria consistently and densely. To properly capture the temporal and iridescent appearance, the setup is automated and able to tilt and rotate the sample, as well as change the azimuth angle (i.e., the angle between the light and the camera). To create straightforward visualizations that communicate Flavobacteria’s unique appearance, an interactive webpage is created. This communication tool shows the captured sample and allows users to control the variables of the data (i.e., the tilt and rotation of the sample, the azimuth angle and the time). Besides communicating Flavobacteria’s appearance to designers and artists, the communication tool can be used during experiments regarding influences on the appearance. These experiments need to be conducted in the future for designers to be able to steer the appearance to grow colours on artefacts to our own liking. To easily draw conclusions from these experiments, a second version of the communication tool is created, showing two samples side by side. At the end of the project, design guidelines are formulated based on the characterization and experience of working with Flavobacteria, for designers that will integrate Flavobacteria’s structural colour. Finally, further research is recommended regarding the definition of properties, the communication and perception of Flavobacteria and the search for potential application areas.

Integrated Product Design

Advisors/Committee Members: Elkhuizen, W.S. (mentor), Ertürkan, H. (mentor), Karana, E. (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Flavobacteria; Appearance; Iridescence; Capturing materials; Communication

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APA (6^th Edition):

Risseeuw, C. (. (2021). Flavobacteria's Structural Colour: Characterizing, Capturing and Communicating the Temporal and Iridescent Appearance of Flavobacteria. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:a266b583-9668-400b-91ef-2cb7064defa5

Chicago Manual of Style (16^th Edition):

Risseeuw, Clarice (author). “Flavobacteria's Structural Colour: Characterizing, Capturing and Communicating the Temporal and Iridescent Appearance of Flavobacteria.” 2021. Masters Thesis, Delft University of Technology. Accessed February 27, 2021. http://resolver.tudelft.nl/uuid:a266b583-9668-400b-91ef-2cb7064defa5.

MLA Handbook (7^th Edition):

Risseeuw, Clarice (author). “Flavobacteria's Structural Colour: Characterizing, Capturing and Communicating the Temporal and Iridescent Appearance of Flavobacteria.” 2021. Web. 27 Feb 2021.

Vancouver:

Risseeuw C(. Flavobacteria's Structural Colour: Characterizing, Capturing and Communicating the Temporal and Iridescent Appearance of Flavobacteria. [Internet] [Masters thesis]. Delft University of Technology; 2021. [cited 2021 Feb 27]. Available from: http://resolver.tudelft.nl/uuid:a266b583-9668-400b-91ef-2cb7064defa5.

Council of Science Editors:

Risseeuw C(. Flavobacteria's Structural Colour: Characterizing, Capturing and Communicating the Temporal and Iridescent Appearance of Flavobacteria. [Masters Thesis]. Delft University of Technology; 2021. Available from: http://resolver.tudelft.nl/uuid:a266b583-9668-400b-91ef-2cb7064defa5

4. Gruson, Hugo. Origin, functions and evolution of iridescence in birds : the example of hummingbirds : Origine, fonctions et évolution de l'iridescence chez les oiseaux : exemple chez les colibris.

Degree: Docteur es, Sciences de l'évolution et de la Biodiversité, 2019, Montpellier

URL: http://www.theses.fr/2019MONTG046

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La couleur constitue un trait particulièrement intéressant pour étudier les mécanismes de l'évolution car il s'agit d'un trait complexe, qui peut évoluer dans plusieurs dimensions,… (more)

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La couleur constitue un trait particulièrement intéressant pour étudier les mécanismes de l'évolution car il s'agit d'un trait complexe, qui peut évoluer dans plusieurs dimensions, et qui est soumis à des nombreuses pression évolutives, qui agissent généralement dans des directions opposées. Parmi les couleurs, il existe une classe qui a reçu relativement peu d'attention de la part des biologistes évolutifs jusqu'ici du fait de sa complexité et de la difficulté à la mesurer de manière fiable et comparable entre espèces : les couleurs iridescentes. Les couleurs iridescentes sont habituellement définies comme des couleurs qui changent selon l'angle d'observation ou d'illumination. Au cours de cette thèse, j'ai collaboré avec des biologistes et des physiciens et j'ai utilisé la théorie optique pour construire une nouvelle méthode de mesure pour ces couleurs, que j'ai ensuite testée sur les colibris et les morphos. J'ai également développé d'autres outils méthodologiques et des librairies logicielles pour l'étude des couleurs. Je me suis ensuite intéressé plus précisément aux couleurs iridescentes des colibris et à leur origine (i) proximale : par quels mécanismes les colibris produisent-ils leurs couleurs extraordinaires ? (ii) distale : quels sont les processus qui contrôlent l'évolution de ces couleurs à l'échelle de la communauté toute entière. J'ai découvert que les structures responsables de l'iridescence chez les colibris présentent bien plus de diversité que ce qu'on pensait jusqu'ici et ils ont également un type de structure qui n'a pour l'instant été observé dans aucun autre groupe. J'ai aussi montré qu'à l'échelle interspécifique, les couleurs iridescentes présentes sur le dos sont similaires parmi les espèces qui habitent la même communauté, ce qui suggère une sélection par l'environnement, pour le camouflage par exemple.

The study of colour can offer valuable insights into the fine details of evolutive mechanisms. It is indeed a complex trait, which can evolve along several dimensions, and which is controlled by multiple selective pressures with often opposed effects. Yet, there is one class of colours that has received few attention from evolutionary biologists: iridescent colours. This is due to the inherent complexity of these colours and the fact that their sole quantitative measurement is a challenge in itself. During my PhD, I worked with physicists and biologists and I used optical theory to propose a new measurement method for iridescent colours. I then validated this method empirically by showing that it produced reliable and repeatable estimates for both hummingbirds and morpho butterflies. My work during these three years has also focused on the development of other methodological tools and software for the study of colours. I also focused more precisely on iridescent colours in hummingbirds. I mainly investigated two sides of this topic and tried to find out (i) the proximal causes of iridescence in hummingbirds: how do they produce the striking colours they are renowned for? (ii) the distal…

Advisors/Committee Members: Doutrelant, Claire (thesis director).

Subjects/Keywords: Iridescence; Couleurs structurales; Colibris; Évolution; Écologie des communautés; Iridescence; Structural colours; Hummingbirds; Evolution; Community ecology

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gruson, H. (2019). Origin, functions and evolution of iridescence in birds : the example of hummingbirds : Origine, fonctions et évolution de l'iridescence chez les oiseaux : exemple chez les colibris. (Doctoral Dissertation). Montpellier. Retrieved from http://www.theses.fr/2019MONTG046

Chicago Manual of Style (16^th Edition):

Gruson, Hugo. “Origin, functions and evolution of iridescence in birds : the example of hummingbirds : Origine, fonctions et évolution de l'iridescence chez les oiseaux : exemple chez les colibris.” 2019. Doctoral Dissertation, Montpellier. Accessed February 27, 2021. http://www.theses.fr/2019MONTG046.

MLA Handbook (7^th Edition):

Gruson, Hugo. “Origin, functions and evolution of iridescence in birds : the example of hummingbirds : Origine, fonctions et évolution de l'iridescence chez les oiseaux : exemple chez les colibris.” 2019. Web. 27 Feb 2021.

Vancouver:

Gruson H. Origin, functions and evolution of iridescence in birds : the example of hummingbirds : Origine, fonctions et évolution de l'iridescence chez les oiseaux : exemple chez les colibris. [Internet] [Doctoral dissertation]. Montpellier; 2019. [cited 2021 Feb 27]. Available from: http://www.theses.fr/2019MONTG046.

Council of Science Editors:

Gruson H. Origin, functions and evolution of iridescence in birds : the example of hummingbirds : Origine, fonctions et évolution de l'iridescence chez les oiseaux : exemple chez les colibris. [Doctoral Dissertation]. Montpellier; 2019. Available from: http://www.theses.fr/2019MONTG046

5. Kientz, Betty. Etude de l'iridescence d'une bactérie marine, Cellulophaga lytica : caractérisation physico-optique, microbiologique et écologique : Iridescence of a marine bacterium, Cellulophaga lytica : physical, microbiological and ecological characterizations.

Degree: Docteur es, Microbiologie, 2012, La Rochelle

URL: http://www.theses.fr/2012LAROS378

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Lors de la prospection de bactéries d’intérêt dans le milieu marin, nous avons isolé des colonies aux couleurs brillantes sous illumination directe, ressemblant à l’iridescence… (more)

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Lors de la prospection de bactéries d’intérêt dans le milieu marin, nous avons isolé des colonies aux couleurs brillantes sous illumination directe, ressemblant à l’iridescence de certains papillons. L’iridescence est une couleur physique induite par des structures nanoscopiques périodiques. Ce phénomène est peu détaillé chez les procaryotes. Dans cette thèse nous avons souhaité caractériser le phénomène par des analyses physico-optiques,microbiologiques et écologiques. La souche fut identifiée comme appartenant à l’espèce Cellulophaga lytica.Les premières étapes ont permis d’illustrer le phénomène et de prouver une coloration structurale des colonies par microspectrophotométrie. Une comparaison de diverses souches a démontré l’iridescence singulière de C. lytica,dénommée iridescence « glitter-like ». Nous avons ainsi proposé la première classification des iridescences bactériennes. Certaines souches du même phylum Bacteroidetes exprimaient le phénomène. Un lien entre cette iridescence et la motilité « gliding » fut mis en évidence. De façon intéressante, l’iridescence était conservée en conditions mimant le biotope C. lytica. De plus, diverses souches marines iridescentes ont pu être ré-isolées. Elles étaient particulièrement abondantes sur les macro algues (rouges, brunes), mollusques, cnidaires et dans l’eau de mer. Nous supposons alors que ce phénomène pourrait avoir des rôles bio-écologiques. Grâce à la microscopie électronique à transmission et une modélisation, nous avons pour la première fois élucidé des structures reponsables d’une iridescence bactérienne : une organisation populationnelle de cellules alignées équidistantes.Les bases fondamentales et méthodologiques de l’iridescence bactérienne sont données dans cette thèse. Les applications correspondraient aux domaines des nanotechnologies et de la biomimétique.

During collections in the marine environment, colony with bright coloration under direct illumination was isolated. Colors were similar to butterly iridescence. Iridescence is a property of structural color where periodic nanoscopic structures are responsible of intense coloration. Bacterial iridescence is poorly described in the literature. In this work, we aimed to characterize the phenomenon by physico-optical, microbiological and ecological analysis. The marine bacterium was identified as Cellulophaga lytica.In the first experiment we illustrated and proved the physical color by micro spectrophotometry. Comparison with diverse bacteria permitted to demonstrate the uniqueness of C. lytica iridescence, named “glitter-like”. We proposed the first classification of iridescences within the prokaryotes. Others Bacteroidetes strains showed “glitterlike”iridescence effects. A link between iridescence and gliding motility was additionally identified. A biotic factors demonstrated conservation of the phenomenon under conditions that mimic C. lytica stressing biotope. Moreover,other iridescent marine strains were isolated. They were particularly associated to macroalgae (red, brown),mollusks,…

Advisors/Committee Members: Rosenfeld, Eric (thesis director).

Subjects/Keywords: Iridescence bactérienne; Glitter-like; Cellulophaga lytica; Bacteroidetes; Motilité par glissement; Bacterial iridescence; Glitter-like; Cellulophaga lytica; Bacteroidetes; Gliding

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kientz, B. (2012). Etude de l'iridescence d'une bactérie marine, Cellulophaga lytica : caractérisation physico-optique, microbiologique et écologique : Iridescence of a marine bacterium, Cellulophaga lytica : physical, microbiological and ecological characterizations. (Doctoral Dissertation). La Rochelle. Retrieved from http://www.theses.fr/2012LAROS378

Chicago Manual of Style (16^th Edition):

Kientz, Betty. “Etude de l'iridescence d'une bactérie marine, Cellulophaga lytica : caractérisation physico-optique, microbiologique et écologique : Iridescence of a marine bacterium, Cellulophaga lytica : physical, microbiological and ecological characterizations.” 2012. Doctoral Dissertation, La Rochelle. Accessed February 27, 2021. http://www.theses.fr/2012LAROS378.

MLA Handbook (7^th Edition):

Kientz, Betty. “Etude de l'iridescence d'une bactérie marine, Cellulophaga lytica : caractérisation physico-optique, microbiologique et écologique : Iridescence of a marine bacterium, Cellulophaga lytica : physical, microbiological and ecological characterizations.” 2012. Web. 27 Feb 2021.

Vancouver:

Kientz B. Etude de l'iridescence d'une bactérie marine, Cellulophaga lytica : caractérisation physico-optique, microbiologique et écologique : Iridescence of a marine bacterium, Cellulophaga lytica : physical, microbiological and ecological characterizations. [Internet] [Doctoral dissertation]. La Rochelle; 2012. [cited 2021 Feb 27]. Available from: http://www.theses.fr/2012LAROS378.

Council of Science Editors:

Kientz B. Etude de l'iridescence d'une bactérie marine, Cellulophaga lytica : caractérisation physico-optique, microbiologique et écologique : Iridescence of a marine bacterium, Cellulophaga lytica : physical, microbiological and ecological characterizations. [Doctoral Dissertation]. La Rochelle; 2012. Available from: http://www.theses.fr/2012LAROS378

Universiteit Utrecht

6. Sussenbach, M. Rendering Iridescent Objects in Real-time.

Degree: 2013, Universiteit Utrecht

URL: http://dspace.library.uu.nl:8080/handle/1874/287110

► Current thin film interference rendering methods focus either solely on accuracy, performance or render only a specific iridescent object. We propose a method for rendering… (more)

Subjects/Keywords: Iridescence; Real-time; Wave Optics; Rendering; Computer Graphics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sussenbach, M. (2013). Rendering Iridescent Objects in Real-time. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/287110

Chicago Manual of Style (16^th Edition):

Sussenbach, M. “Rendering Iridescent Objects in Real-time.” 2013. Masters Thesis, Universiteit Utrecht. Accessed February 27, 2021. http://dspace.library.uu.nl:8080/handle/1874/287110.

MLA Handbook (7^th Edition):

Sussenbach, M. “Rendering Iridescent Objects in Real-time.” 2013. Web. 27 Feb 2021.

Vancouver:

Sussenbach M. Rendering Iridescent Objects in Real-time. [Internet] [Masters thesis]. Universiteit Utrecht; 2013. [cited 2021 Feb 27]. Available from: http://dspace.library.uu.nl:8080/handle/1874/287110.

Council of Science Editors:

Sussenbach M. Rendering Iridescent Objects in Real-time. [Masters Thesis]. Universiteit Utrecht; 2013. Available from: http://dspace.library.uu.nl:8080/handle/1874/287110

7. Gammie, Kevyn K. The evolution of iridescent plumage in the Galliformes: Proximate mechanisms and ultimate functions.

Degree: MS, Biological Sciences, 2013, National Library of Canada

URL: http://scholar.uwindsor.ca/etd/4908

► Iridescence is a specialized type of structural colouration that produces some of the most spectacular visual displays found in animals. However, the proximate mechanisms… (more)

Subjects/Keywords: Biological sciences; Dimorphism; Galliformes; Iridescence; Nanostructure; Phylogenetic; Sexual selection

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gammie, K. K. (2013). The evolution of iridescent plumage in the Galliformes: Proximate mechanisms and ultimate functions. (Masters Thesis). National Library of Canada. Retrieved from http://scholar.uwindsor.ca/etd/4908

Chicago Manual of Style (16^th Edition):

Gammie, Kevyn K. “The evolution of iridescent plumage in the Galliformes: Proximate mechanisms and ultimate functions.” 2013. Masters Thesis, National Library of Canada. Accessed February 27, 2021. http://scholar.uwindsor.ca/etd/4908.

MLA Handbook (7^th Edition):

Gammie, Kevyn K. “The evolution of iridescent plumage in the Galliformes: Proximate mechanisms and ultimate functions.” 2013. Web. 27 Feb 2021.

Vancouver:

Gammie KK. The evolution of iridescent plumage in the Galliformes: Proximate mechanisms and ultimate functions. [Internet] [Masters thesis]. National Library of Canada; 2013. [cited 2021 Feb 27]. Available from: http://scholar.uwindsor.ca/etd/4908.

Council of Science Editors:

Gammie KK. The evolution of iridescent plumage in the Galliformes: Proximate mechanisms and ultimate functions. [Masters Thesis]. National Library of Canada; 2013. Available from: http://scholar.uwindsor.ca/etd/4908

University of Iowa

8. Heineman, Margaret Mae. Noble souls.

Degree: MFA (Master of Fine Arts), Book Arts, 2015, University of Iowa

URL: https://ir.uiowa.edu/etd/1625

► Sunset Iridescence is a one of a kind sculptural bookwork which reflects the essence of the wings of the Madagascar Sunset Moth. My work… (more)

Subjects/Keywords: publicabstract; bookbinding; gilding; iridescence; letterpress; pigment; Sunset Moth; Book and Paper

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APA (6^th Edition):

Heineman, M. M. (2015). Noble souls. (Masters Thesis). University of Iowa. Retrieved from https://ir.uiowa.edu/etd/1625

Chicago Manual of Style (16^th Edition):

Heineman, Margaret Mae. “Noble souls.” 2015. Masters Thesis, University of Iowa. Accessed February 27, 2021. https://ir.uiowa.edu/etd/1625.

MLA Handbook (7^th Edition):

Heineman, Margaret Mae. “Noble souls.” 2015. Web. 27 Feb 2021.

Vancouver:

Heineman MM. Noble souls. [Internet] [Masters thesis]. University of Iowa; 2015. [cited 2021 Feb 27]. Available from: https://ir.uiowa.edu/etd/1625.

Council of Science Editors:

Heineman MM. Noble souls. [Masters Thesis]. University of Iowa; 2015. Available from: https://ir.uiowa.edu/etd/1625

9. Van Wijk, Sonia. Influence de l'iridescence sur le succès reproducteur des mâles Hirondelle bicolore (Tachycineta bicolor).

Degree: M. Sc., Écologie, 2015, Université de Sherbrooke

URL: http://www.collectionscanada.gc.ca/obj/thesescanada/vol2/QSHERU/TC-QSHERU-11143_7523.pdf ; http://savoirs.usherbrooke.ca/bitstream/11143/7523/2/VanWijk_Sonia_MSc_2015.pdf

► En élaborant la théorie de la sélection sexuelle, Darwin a levé le voile sur les causes de l’évolution de traits extravagants plus souvent observés chez… (more)

▼ En élaborant la théorie de la sélection sexuelle, Darwin a levé le voile sur les causes de l’évolution de traits extravagants plus souvent observés chez les mâles, comme la coloration du plumage chez les oiseaux. Un des mécanismes proposés pour expliquer l’évolution des couleurs vives chez les mâles est la fonction de signal de condition. Les mâles pourraient donc être préférés par les femelles puisque celles-ci obtiendraient des bénéfices directs, comme un meilleur territoire, ou des bénéfices indirects, tels que de bons gènes pour leurs oisillons. La sélection sexuelle de l’iridescence, un mode de coloration répandu chez les oiseaux, est encore peu documentée à ce jour. L’iridescence est un mécanisme de coloration directionnel, c’est-à-dire qu’il occasionne un changement de brillance avec un mouvement de l’animal. Cette propriété unique à l’iridescence amène une difficulté de quantification qui a longtemps limité son étude. Le but de mon projet était donc, dans un premier temps, de fabriquer un appareil de mesure répétable de l’iridescence déjà publié dans la littérature afin de le tester chez l’Hirondelle bicolore (Tachycineta bicolor). Dans un deuxième temps, j’ai vérifié si l’iridescence des mâles Hirondelle bicolore (Tachycineta bicolor) influençait leur succès reproducteur. Grâce à l’appareil de mesure, j’ai pu montrer qu’il y avait des différences individuelles dans la directionnalité de l’iridescence. De plus, j’ai pu établir que ces différences étaient reliées au nombre de jeunes dans le couple du mâle. Cette variable, pour la première fois associée au succès reproducteur, pourrait jouer un rôle dans le signalement de la capacité à donner des soins parentaux. De plus, les mâles brillants avaient un avantage pour les paternités hors couple, mais seulement dans les sites à faible densité de reproducteurs. Une forte densité de reproducteurs pourrait limiter le choix de la femelle, possiblement en raison de l’agressivité des mâles ou du coût énergétique cumulatif de refuser des copulations hors couple. Globalement, j’ai non seulement montré que l’iridescence est un signal à composantes multiples pouvant jouer un rôle dans les deux constituantes du succès reproducteur, mais aussi que les conditions de compétition représentées par la densité de reproducteurs sont importantes à considérer pour avoir un portrait plus précis des patrons de sélection. Mon projet de recherche amène ainsi une meilleure compréhension de la sélection sexuelle en milieu naturel. Advisors/Committee Members: Pelletier, Fanie.

Subjects/Keywords: Hirondelle bicolore; Tachycineta bicolor; Sélection sexuelle; Coloration; Iridescence; Aptitude phénotypique; Directionnalité; Répétabilité

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Van Wijk, S. (2015). Influence de l'iridescence sur le succès reproducteur des mâles Hirondelle bicolore (Tachycineta bicolor). (Masters Thesis). Université de Sherbrooke. Retrieved from http://www.collectionscanada.gc.ca/obj/thesescanada/vol2/QSHERU/TC-QSHERU-11143_7523.pdf ; http://savoirs.usherbrooke.ca/bitstream/11143/7523/2/VanWijk_Sonia_MSc_2015.pdf

Chicago Manual of Style (16^th Edition):

Van Wijk, Sonia. “Influence de l'iridescence sur le succès reproducteur des mâles Hirondelle bicolore (Tachycineta bicolor).” 2015. Masters Thesis, Université de Sherbrooke. Accessed February 27, 2021. http://www.collectionscanada.gc.ca/obj/thesescanada/vol2/QSHERU/TC-QSHERU-11143_7523.pdf ; http://savoirs.usherbrooke.ca/bitstream/11143/7523/2/VanWijk_Sonia_MSc_2015.pdf.

MLA Handbook (7^th Edition):

Van Wijk, Sonia. “Influence de l'iridescence sur le succès reproducteur des mâles Hirondelle bicolore (Tachycineta bicolor).” 2015. Web. 27 Feb 2021.

Vancouver:

Van Wijk S. Influence de l'iridescence sur le succès reproducteur des mâles Hirondelle bicolore (Tachycineta bicolor). [Internet] [Masters thesis]. Université de Sherbrooke; 2015. [cited 2021 Feb 27]. Available from: http://www.collectionscanada.gc.ca/obj/thesescanada/vol2/QSHERU/TC-QSHERU-11143_7523.pdf ; http://savoirs.usherbrooke.ca/bitstream/11143/7523/2/VanWijk_Sonia_MSc_2015.pdf.

Council of Science Editors:

Van Wijk S. Influence de l'iridescence sur le succès reproducteur des mâles Hirondelle bicolore (Tachycineta bicolor). [Masters Thesis]. Université de Sherbrooke; 2015. Available from: http://www.collectionscanada.gc.ca/obj/thesescanada/vol2/QSHERU/TC-QSHERU-11143_7523.pdf ; http://savoirs.usherbrooke.ca/bitstream/11143/7523/2/VanWijk_Sonia_MSc_2015.pdf

University of Exeter

10. Hewson, Daniel James. Iridescence and circular dichroism in cellulose nanocrystal thin films.

Degree: PhD, 2017, University of Exeter

URL: http://hdl.handle.net/10871/32480

► Only in recent times has the true potential of cellulose as a high-end functional and sustainable material been realised. As the world’s most abundant resource… (more)

Subjects/Keywords: 530; Nanocrystallline cellulose; Iridescence; Bragg stack; layer by layer assembly; Photonic structure

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hewson, D. J. (2017). Iridescence and circular dichroism in cellulose nanocrystal thin films. (Doctoral Dissertation). University of Exeter. Retrieved from http://hdl.handle.net/10871/32480

Chicago Manual of Style (16^th Edition):

Hewson, Daniel James. “Iridescence and circular dichroism in cellulose nanocrystal thin films.” 2017. Doctoral Dissertation, University of Exeter. Accessed February 27, 2021. http://hdl.handle.net/10871/32480.

MLA Handbook (7^th Edition):

Hewson, Daniel James. “Iridescence and circular dichroism in cellulose nanocrystal thin films.” 2017. Web. 27 Feb 2021.

Vancouver:

Hewson DJ. Iridescence and circular dichroism in cellulose nanocrystal thin films. [Internet] [Doctoral dissertation]. University of Exeter; 2017. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10871/32480.

Council of Science Editors:

Hewson DJ. Iridescence and circular dichroism in cellulose nanocrystal thin films. [Doctoral Dissertation]. University of Exeter; 2017. Available from: http://hdl.handle.net/10871/32480

Hong Kong University of Science and Technology

11. Chen, Jiefei. Structural color in the scales of blue-banded bees.

Degree: 2009, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-5981 ; https://doi.org/10.14711/thesis-b1041238 ; http://repository.ust.hk/ir/bitstream/1783.1-5981/1/th_redirect.html

► The iridescent colors of the blue-banded bee (Aphrodita sp.) come from the bands of scales on their backs. Observed in optical microscope, the scales are… (more)

Subjects/Keywords: Iridescence ; Bees – Color ; Cuticle – Optical properties

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APA (6^th Edition):

Chen, J. (2009). Structural color in the scales of blue-banded bees. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-5981 ; https://doi.org/10.14711/thesis-b1041238 ; http://repository.ust.hk/ir/bitstream/1783.1-5981/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chen, Jiefei. “Structural color in the scales of blue-banded bees.” 2009. Thesis, Hong Kong University of Science and Technology. Accessed February 27, 2021. http://repository.ust.hk/ir/Record/1783.1-5981 ; https://doi.org/10.14711/thesis-b1041238 ; http://repository.ust.hk/ir/bitstream/1783.1-5981/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chen, Jiefei. “Structural color in the scales of blue-banded bees.” 2009. Web. 27 Feb 2021.

Vancouver:

Chen J. Structural color in the scales of blue-banded bees. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2009. [cited 2021 Feb 27]. Available from: http://repository.ust.hk/ir/Record/1783.1-5981 ; https://doi.org/10.14711/thesis-b1041238 ; http://repository.ust.hk/ir/bitstream/1783.1-5981/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chen J. Structural color in the scales of blue-banded bees. [Thesis]. Hong Kong University of Science and Technology; 2009. Available from: http://repository.ust.hk/ir/Record/1783.1-5981 ; https://doi.org/10.14711/thesis-b1041238 ; http://repository.ust.hk/ir/bitstream/1783.1-5981/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Université de Sherbrooke

12. Van Wijk, Sonia. Influence de l'iridescence sur le succès reproducteur des mâles Hirondelle bicolore (Tachycineta bicolor).

Degree: 2015, Université de Sherbrooke

URL: http://hdl.handle.net/11143/7523

► En élaborant la théorie de la sélection sexuelle, Darwin a levé le voile sur les causes de l’évolution de traits extravagants plus souvent observés chez… (more)

▼ En élaborant la théorie de la sélection sexuelle, Darwin a levé le voile sur les causes de l’évolution de traits extravagants plus souvent observés chez les mâles, comme la coloration du plumage chez les oiseaux. Un des mécanismes proposés pour expliquer l’évolution des couleurs vives chez les mâles est la fonction de signal de condition. Les mâles pourraient donc être préférés par les femelles puisque celles-ci obtiendraient des bénéfices directs, comme un meilleur territoire, ou des bénéfices indirects, tels que de bons gènes pour leurs oisillons. La sélection sexuelle de l’iridescence, un mode de coloration répandu chez les oiseaux, est encore peu documentée à ce jour. L’iridescence est un mécanisme de coloration directionnel, c’est-à-dire qu’il occasionne un changement de brillance avec un mouvement de l’animal. Cette propriété unique à l’iridescence amène une difficulté de quantification qui a longtemps limité son étude. Le but de mon projet était donc, dans un premier temps, de fabriquer un appareil de mesure répétable de l’iridescence déjà publié dans la littérature afin de le tester chez l’Hirondelle bicolore (Tachycineta bicolor). Dans un deuxième temps, j’ai vérifié si l’iridescence des mâles Hirondelle bicolore (Tachycineta bicolor) influençait leur succès reproducteur. Grâce à l’appareil de mesure, j’ai pu montrer qu’il y avait des différences individuelles dans la directionnalité de l’iridescence. De plus, j’ai pu établir que ces différences étaient reliées au nombre de jeunes dans le couple du mâle. Cette variable, pour la première fois associée au succès reproducteur, pourrait jouer un rôle dans le signalement de la capacité à donner des soins parentaux. De plus, les mâles brillants avaient un avantage pour les paternités hors couple, mais seulement dans les sites à faible densité de reproducteurs. Une forte densité de reproducteurs pourrait limiter le choix de la femelle, possiblement en raison de l’agressivité des mâles ou du coût énergétique cumulatif de refuser des copulations hors couple. Globalement, j’ai non seulement montré que l’iridescence est un signal à composantes multiples pouvant jouer un rôle dans les deux constituantes du succès reproducteur, mais aussi que les conditions de compétition représentées par la densité de reproducteurs sont importantes à considérer pour avoir un portrait plus précis des patrons de sélection. Mon projet de recherche amène ainsi une meilleure compréhension de la sélection sexuelle en milieu naturel. Advisors/Committee Members: Pelletier, Fanie (advisor).

Subjects/Keywords: Hirondelle bicolore; Tachycineta bicolor; Sélection sexuelle; Coloration; Iridescence; Aptitude phénotypique; Directionnalité; Répétabilité

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Van Wijk, S. (2015). Influence de l'iridescence sur le succès reproducteur des mâles Hirondelle bicolore (Tachycineta bicolor). (Masters Thesis). Université de Sherbrooke. Retrieved from http://hdl.handle.net/11143/7523

Chicago Manual of Style (16^th Edition):

Van Wijk, Sonia. “Influence de l'iridescence sur le succès reproducteur des mâles Hirondelle bicolore (Tachycineta bicolor).” 2015. Masters Thesis, Université de Sherbrooke. Accessed February 27, 2021. http://hdl.handle.net/11143/7523.

MLA Handbook (7^th Edition):

Van Wijk, Sonia. “Influence de l'iridescence sur le succès reproducteur des mâles Hirondelle bicolore (Tachycineta bicolor).” 2015. Web. 27 Feb 2021.

Vancouver:

Van Wijk S. Influence de l'iridescence sur le succès reproducteur des mâles Hirondelle bicolore (Tachycineta bicolor). [Internet] [Masters thesis]. Université de Sherbrooke; 2015. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/11143/7523.

Council of Science Editors:

Van Wijk S. Influence de l'iridescence sur le succès reproducteur des mâles Hirondelle bicolore (Tachycineta bicolor). [Masters Thesis]. Université de Sherbrooke; 2015. Available from: http://hdl.handle.net/11143/7523

Macquarie University

13. Parker, Andrew Richard. Aspects of myodocopin (Ostracoda) biology and crustacean iridescence.

Degree: PhD, 1996, Macquarie University

URL: http://hdl.handle.net/1959.14/104363

►

"October 1995"

Thesis by publication.

General introduction – Systematics of Cypridinidae (Ostracoda: Myodocopina) – The trichocoel: form and function of an unusual type of sensilla… (more)

▼

"October 1995"

Thesis by publication.

General introduction – Systematics of Cypridinidae (Ostracoda: Myodocopina) – The trichocoel: form and function of an unusual type of sensilla present in the carapace of certain cypridinid (Myodocopina) ostracods – Functional morphology of the myodocopin (Ostracoda) furca, sclerotized body plate and central adductor muscles – Exoskeleton and position of the flexible setules on the myodocopin (Crustacea: Ostracoda) first antenna – Discovery of functional iridescence and its coevolution with eyes in the phylogeny of Ostracoda (Crustacea) – Mating behaviour in myodocopin ostracods (Crustacea): results from video recordings of a highly iridescent species of cypridinid – Iridescence: an underestimated phenomenon in crustaceans, and its potential importance in behavioural recognition in marine environments – General conclusions.

This study describes the following discoveries I made while working on cypridinid ostracods, and subsequently other crustaceans. – Two new cypridinid genera, Cohenia and Lowrya, containing the species C. taiti and L. kornickeri, and a new species of cypridinid, Vargula karamu, are established. The genus Cohenia bears an unusual type of sensilla, termed a trichocoel. Trichocoels may be velocity detectors, which detect either steady fluid drainage motion or acoustic motion in the surrounding water. The furca is used as a major feeding tool in scavenging cypridinids. The hard section of the dorsal body wall almost adjacent to the furca in all myodocopins is termed the sclerosome. The sclerosome provides support for certain fureal muscles, and protection for the soft body when the carapace is opened. The central adductor muscles of myodocopins, are arranged as a group of small muscles, rather than a single large muscle, allowing different areas of the anterior, ventral, and posterior carapace margins to open almost independently of each other. The sensory seta of the fifth article of the myodocopin first antenna is termed the sseta. Setules of the s-seta, and some from other long first antennal setae, have a finely ringed ultrastructure and are termed halophores. The halophores of one first antenna are collectively termed the halothalium. The grooved external surface of a halophore acts as a diffraction grating, and causes highly efficient iridescence. This iridescence is functional during courtship in at least some cypridinids. Some cypridinids copulate in a position where ventral carapace margins are juxtaposed, and anterior ends are opposite. Copulation in these ostracods is completed in about five seconds. The cypridinids have evolved with light as a major stimulus. Based on phylogenetic studies, iridescence appears to be a precursor to cypridinid bioluminescence, and the myodocopin compound eye may have evolved independently. Iridescence is widespread throughout the Crustacea, occurring as a result of external diffraction gratings, or internal multilayer reflectors.

ix, 283 leaves ill. (some col.)

Advisors/Committee Members: Macquarie University. School of Biological Sciences.

Subjects/Keywords: Cypridinidae – Australia; Cypridinidae – Classification; Crustacea – Color; Iridescence

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Parker, A. R. (1996). Aspects of myodocopin (Ostracoda) biology and crustacean iridescence. (Doctoral Dissertation). Macquarie University. Retrieved from http://hdl.handle.net/1959.14/104363

Chicago Manual of Style (16^th Edition):

Parker, Andrew Richard. “Aspects of myodocopin (Ostracoda) biology and crustacean iridescence.” 1996. Doctoral Dissertation, Macquarie University. Accessed February 27, 2021. http://hdl.handle.net/1959.14/104363.

MLA Handbook (7^th Edition):

Parker, Andrew Richard. “Aspects of myodocopin (Ostracoda) biology and crustacean iridescence.” 1996. Web. 27 Feb 2021.

Vancouver:

Parker AR. Aspects of myodocopin (Ostracoda) biology and crustacean iridescence. [Internet] [Doctoral dissertation]. Macquarie University; 1996. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1959.14/104363.

Council of Science Editors:

Parker AR. Aspects of myodocopin (Ostracoda) biology and crustacean iridescence. [Doctoral Dissertation]. Macquarie University; 1996. Available from: http://hdl.handle.net/1959.14/104363

Université de Sherbrooke

14. Lefol, Émilie. L’iridescence : variabilité, corrélations et dynamique de la coloration du plumage chez une espèce à promiscuité sexuelle, l'hirondelle bicolore (Tachycineta bicolor).

Degree: 2021, Université de Sherbrooke

URL: http://hdl.handle.net/11143/17918

► La variation dans la couleur du plumage chez les oiseaux est souvent utilisée pour signaler desdifférences fonctionnelles entre les individus et les sexes. En revanche,… (more)

▼ La variation dans la couleur du plumage chez les oiseaux est souvent utilisée pour signaler desdifférences fonctionnelles entre les individus et les sexes. En revanche, malgré les avantagesapparents d’avoir des signaux de couleur sexuellement sélectionnés, plus de 50% des espècesd’oiseaux ont une apparence monomorphe. Cette apparente similitude peut être trompeuse,puisque les oiseaux possèdent un spectre visuel plus large et peuvent détecter des indices invi-sibles visuellement pour l’homme. Ainsi, les oiseaux peuvent utiliser des variations subtiles deleur plumage comme signaux spécifiques à l’espèce et pour la communication au sein et entreles sexes. Cette variation de couleur peut être pour tout observateur un indicateur fiable de lacondition du porteur et être impliquée dans le choix du partenaire sexuel. La plupart des re-cherches sur la coloration des plumes se sont concentrées sur les couleurs des ornements d’ori-gine pigmentaire principalement à base de caroténoïdes et mélanines. En revanche, les couleursd’origines structurales, telles que l’iridescence, ont été comparativement peu étudiées, mêmesi elles sont présentes chez de nombreux oiseaux avec différents degrés d’expression et de vi-sibilité. La sélection sexuelle prédit une corrélation entre l’expression d’un ornement, tel quel’iridescence du plumage, et le succès reproducteur des individus. Un succès reproducteur quipeut être augmenté par le recours aux fertilisations hors couple. Loin d’être une exception chezles oiseaux (en particulier chez les passereaux), la fertilisation hors couple survient lorsque lemâle ou la femelle du couple social obtient des copulations avec des partenaires autres queleur partenaire social, entraînant des couvées à paternités multiples. L’objectif général de mathèse de doctorat était d’évaluer les rôles de la coloration du plumage iridescent et son lienavec le succès reproducteur chez une espèce à promiscuité sexuelle : l’Hirondelle bicolore (Ta-chycineta bicolor). Cette thèse est composée de trois chapitres qui suivent une introductiongénérale.Le chapitre 2 se concentre sur les informations transmises par l’iridescence. Ce chapitre a pourobjectif de quantifier les corrélations entre la coloration iridescente du plumage et différentstraits individuels et écologiques. J’ai également mesuré les associations entre l’iridescence duplumage et certains indices de performance reproductive. Les résultats indiquent que plusieursaspects de la coloration iridescente, et particulièrement la saturation, sont liés à la condition,mais également au succès reproducteur des individus. Cette étude documente ainsi la variationde la signalisation sexuelle du plumage iridescent au sein d’une population naturelle, tout enmettant en évidence des questions en suspens quant à la stabilité de cet ornement. Le chapitre 3 a ciblé l’exploration de la stabilité temporelle de la coloration du plumage irides-cent durant la saison de reproduction des femelles. Pour ce faire, j’ai commencé par évaluerles différences interannuelles dans les tendances… Advisors/Committee Members: Garant, Dany (advisor), Pelletier, Fanie (advisor).

Subjects/Keywords: Tachycineta bicolor; Coloration du plumage; Sélection naturelle; Condition dépendance; Succès reproducteur; Changement temporel; Fertilisation hors couple; Iridescence

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lefol, �. (2021). L’iridescence : variabilité, corrélations et dynamique de la coloration du plumage chez une espèce à promiscuité sexuelle, l'hirondelle bicolore (Tachycineta bicolor). (Doctoral Dissertation). Université de Sherbrooke. Retrieved from http://hdl.handle.net/11143/17918

Chicago Manual of Style (16^th Edition):

Lefol, Émilie. “L’iridescence : variabilité, corrélations et dynamique de la coloration du plumage chez une espèce à promiscuité sexuelle, l'hirondelle bicolore (Tachycineta bicolor).” 2021. Doctoral Dissertation, Université de Sherbrooke. Accessed February 27, 2021. http://hdl.handle.net/11143/17918.

MLA Handbook (7^th Edition):

Lefol, Émilie. “L’iridescence : variabilité, corrélations et dynamique de la coloration du plumage chez une espèce à promiscuité sexuelle, l'hirondelle bicolore (Tachycineta bicolor).” 2021. Web. 27 Feb 2021.

Vancouver:

Lefol �. L’iridescence : variabilité, corrélations et dynamique de la coloration du plumage chez une espèce à promiscuité sexuelle, l'hirondelle bicolore (Tachycineta bicolor). [Internet] [Doctoral dissertation]. Université de Sherbrooke; 2021. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/11143/17918.

Council of Science Editors:

Lefol �. L’iridescence : variabilité, corrélations et dynamique de la coloration du plumage chez une espèce à promiscuité sexuelle, l'hirondelle bicolore (Tachycineta bicolor). [Doctoral Dissertation]. Université de Sherbrooke; 2021. Available from: http://hdl.handle.net/11143/17918

15. Gammie, Kevyn K. The evolution of iridescent plumage in the Galliformes: Proximate mechanisms and ultimate functions.

Degree: MS, Biological Sciences, 2013, University of Windsor

URL: https://scholar.uwindsor.ca/etd/4908

► Iridescence is a specialized type of structural colouration that produces some of the most spectacular visual displays found in animals. However, the proximate mechanisms… (more)

Subjects/Keywords: Biological sciences; Dimorphism; Galliformes; Iridescence; Nanostructure; Phylogenetic; Sexual selection

…4 Iridescence… …9 CHAPTER 2: Feather nanostructure and the evolution of iridescence in the Galliformes… …iridescence (Prum & Torres, 2003). Iridescence Iridescence is perhaps the most… …iridescence, which ultimately results in a broad variation in the qualities of iridescent plumage… …Oring, 1977). Thesis objectives Although iridescence is found in a variety of taxa…

5 more images…

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gammie, K. K. (2013). The evolution of iridescent plumage in the Galliformes: Proximate mechanisms and ultimate functions. (Masters Thesis). University of Windsor. Retrieved from https://scholar.uwindsor.ca/etd/4908

Chicago Manual of Style (16^th Edition):

Gammie, Kevyn K. “The evolution of iridescent plumage in the Galliformes: Proximate mechanisms and ultimate functions.” 2013. Masters Thesis, University of Windsor. Accessed February 27, 2021. https://scholar.uwindsor.ca/etd/4908.

MLA Handbook (7^th Edition):

Gammie, Kevyn K. “The evolution of iridescent plumage in the Galliformes: Proximate mechanisms and ultimate functions.” 2013. Web. 27 Feb 2021.

Vancouver:

Gammie KK. The evolution of iridescent plumage in the Galliformes: Proximate mechanisms and ultimate functions. [Internet] [Masters thesis]. University of Windsor; 2013. [cited 2021 Feb 27]. Available from: https://scholar.uwindsor.ca/etd/4908.

Council of Science Editors:

Gammie KK. The evolution of iridescent plumage in the Galliformes: Proximate mechanisms and ultimate functions. [Masters Thesis]. University of Windsor; 2013. Available from: https://scholar.uwindsor.ca/etd/4908

University of Akron

16. Hsiung, Bor-Kai. COLOR PRODUCTION MECHANISMS IN SPIDERS AND THEIR BIOMIMICRY POTENTIAL.

Degree: PhD, Integrated Bioscience, 2017, University of Akron

URL: http://rave.ohiolink.edu/etdc/view?acc_num=akron1497355826810282

► Understanding the color production mechanisms is important to the advancement of understanding color evolution, ecology, adaptation, and functions. Therefore, investigating how spiders produce colors is… (more)

▼ Understanding the color production mechanisms is important to the advancement of understanding color evolution, ecology, adaptation, and functions. Therefore, investigating how spiders produce colors is a critical piece of the puzzle to fully understand spider biology. In this dissertation, I investigated how spiders produce colors through pigments and biogenic photonic structures using varies techniques. We discovered the presence of eumelanin and carotenoids in spiders, which are both common in nature but were previously thought to be absent in spiders. I also discovered melanosomes – a melanin-containing cellular organelle previously assumed to be a synapomorphy for vertebrates – in spiders. Pigments aside, I described many novel and unique biogenic photonic structures in spiders. The blue color for many tarantulas is produced via specialized setaewith diverse photonic structures within. A phylogenic analysis on the blue traitsiiishowed that despite being a very specific (narrow band) blue color, the blue traits evolved independently at least 8 times. In other words, diverse photonic structures evolved convergently to produce a very specific blue color in tarantulas, suggesting an important visual function for yet to be determined receivers. Among these structures, a flower-shaped multilayer structure is of particular interests due to its ability to attenuate iridescence. This particular structure may inspire the design and fabrication of vibrant, durable colorants in the future. On the other hand, two particular species of peacock spiders showcase extremely angle sensitive iridescence, which produces all the colors within the human visible spectrum with the slightest movement. We determined that this rainbow-iridescent optical effect was produced by unique airfoil-shaped setae with surface nanogratings. These setae also possess an unusual high wavelength resolving capability that may contribute to the design and fabrication of miniature optical components to further advance human light-based technologies. Advisors/Committee Members: Blackledge, Todd (Advisor), Shawkey, Matthew (Advisor).

Subjects/Keywords: Animal Sciences; Animals; Biology; Biophysics; Evolution and Development; Experiments; Morphology; Optics; spider; color; pigment; photonic structure; iridescence; arachnid; tarantula; peacock spider; structural color; Raman spectroscopy; melanin; carotenoid; ommochrome; pterin; diffraction; grating; interference; multilayer; melanosome; arthropod; silk

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hsiung, B. (2017). COLOR PRODUCTION MECHANISMS IN SPIDERS AND THEIR BIOMIMICRY POTENTIAL. (Doctoral Dissertation). University of Akron. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=akron1497355826810282

Chicago Manual of Style (16^th Edition):

Hsiung, Bor-Kai. “COLOR PRODUCTION MECHANISMS IN SPIDERS AND THEIR BIOMIMICRY POTENTIAL.” 2017. Doctoral Dissertation, University of Akron. Accessed February 27, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1497355826810282.

MLA Handbook (7^th Edition):

Hsiung, Bor-Kai. “COLOR PRODUCTION MECHANISMS IN SPIDERS AND THEIR BIOMIMICRY POTENTIAL.” 2017. Web. 27 Feb 2021.

Vancouver:

Hsiung B. COLOR PRODUCTION MECHANISMS IN SPIDERS AND THEIR BIOMIMICRY POTENTIAL. [Internet] [Doctoral dissertation]. University of Akron; 2017. [cited 2021 Feb 27]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=akron1497355826810282.

Council of Science Editors:

Hsiung B. COLOR PRODUCTION MECHANISMS IN SPIDERS AND THEIR BIOMIMICRY POTENTIAL. [Doctoral Dissertation]. University of Akron; 2017. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=akron1497355826810282

University of Cambridge

17. Steiner, Lisa Maria. Structural colour from a helicoidal cellulose architecture in the secondary cell wall: Optical properties, cell wall composition, structure and morphology of components, and their assembly and interactions.

Degree: PhD, 2019, University of Cambridge

URL: https://www.repository.cam.ac.uk/handle/1810/297316

► Structural colours are produced by constructive interference of light scattered from periodically arranged interfaces within nanostructured materials. A common strategy of plants to achieve structural… (more)

▼ Structural colours are produced by constructive interference of light scattered from periodically arranged interfaces within nanostructured materials. A common strategy of plants to achieve structural coloration consists of assembling cellulose microfibrils into helicoidal structures. Examples of these architectures can be found in phylogenetically distant species and in different tissues of plants, such as in the endocarp of the fruit of it{Margaritaria nobilis}, an eudicot, and in the fronds of it{Microsorum thailandicum}, a fern. In this thesis, I studied the optical response and anatomical features of the adaxial and abaxial epidermal layers of cells of it{M. thailandicum}. The optical variation between fronds, between cells, and within cells, both for the adaxial and abaxial surface, were quantified by polarised optical microscopy and microspectroscopy. The adaxial reflection is mainly in the blue range (400-550 nm), with a narrow distribution of reflection peak maxima and peak widths, while the abaxial reflection spans almost the entire visible range (400-650 nm), and spectra are broader and show more varied features. The anatomical structure responsible for this optical behaviour was confirmed by electron microscopy. Numerical modelling based on the microscopy data indicates that there is much more complexity in the helicoidal architecture than just simple local defects. The significant difference between the adaxial and abaxial epidermal cell walls hints at fundamental differences in their biosynthesis. For the endocarp of the fruit of it{M. nobilis}, I correlated the optical response to the ultrastructure of the secondary cell wall, and the morphology and chemical structure of its main components, cellulose and xylan. The composition of the endocarp was characterised as 9 % extractives, 36 % cellulose, 23 % xylan, and 30 % lignin. The cellulose microfibrils were isolated in a long series of chemical purifications, and found to be extremely short - around 500 nm - and highly crystalline, as determined via nuclear magnetic resonance spectroscopy and X-ray diffraction. Xylan was found to be the most abundant hemicellulose and its primary structure was characterised via enzyme digestions, gel electrophoresis and mass spectrometry. It has acetyl groups on every other xylose unit, no arabinose and around 4 % of glucuronic acid decoration. By combining the information on the xylan with the morphological characteristics of the cellulose microfibrils, I speculate about their assembly into the helicoidal architecture during the cell wall biosynthesis, based on findings from coarsed-grain modelling, and on their interactions in the final tissue, based on small angle X-ray scattering studies.

Subjects/Keywords: Structural colour; Margaritaria nobilis; Microsorum thailandicum; Pollia condensata; Plant cell wall; Secondary cell wall; Cellulose; Cellulose microfibrils; Xylan; Iridescence; Cell wall composition; Helicoid; Helicoidal architecture; Nanostructure; Living light; Cellulose helicoidal architecture; Circular polarisation; Cellulose biosynthesis; Cell wall biosynthesis; Xylan biosynthesis; Adaxial epidermis; Abaxial epidermis; Cellulose isolation; Cellulose crystallinity; Glucuronoxylan

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Steiner, L. M. (2019). Structural colour from a helicoidal cellulose architecture in the secondary cell wall: Optical properties, cell wall composition, structure and morphology of components, and their assembly and interactions. (Doctoral Dissertation). University of Cambridge. Retrieved from https://www.repository.cam.ac.uk/handle/1810/297316

Chicago Manual of Style (16^th Edition):

Steiner, Lisa Maria. “Structural colour from a helicoidal cellulose architecture in the secondary cell wall: Optical properties, cell wall composition, structure and morphology of components, and their assembly and interactions.” 2019. Doctoral Dissertation, University of Cambridge. Accessed February 27, 2021. https://www.repository.cam.ac.uk/handle/1810/297316.

MLA Handbook (7^th Edition):

Steiner, Lisa Maria. “Structural colour from a helicoidal cellulose architecture in the secondary cell wall: Optical properties, cell wall composition, structure and morphology of components, and their assembly and interactions.” 2019. Web. 27 Feb 2021.

Vancouver:

Steiner LM. Structural colour from a helicoidal cellulose architecture in the secondary cell wall: Optical properties, cell wall composition, structure and morphology of components, and their assembly and interactions. [Internet] [Doctoral dissertation]. University of Cambridge; 2019. [cited 2021 Feb 27]. Available from: https://www.repository.cam.ac.uk/handle/1810/297316.

Council of Science Editors:

Steiner LM. Structural colour from a helicoidal cellulose architecture in the secondary cell wall: Optical properties, cell wall composition, structure and morphology of components, and their assembly and interactions. [Doctoral Dissertation]. University of Cambridge; 2019. Available from: https://www.repository.cam.ac.uk/handle/1810/297316

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