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Dissertations / Theses on the topic 'Blackbirds'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 March 2023

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1

Desrochers, Andre. "Age and reproduction in European blackbirds, Turdus merula." Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386029.

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2

Glassey, Barb C. "Resource competition among nestling red-winged blackbirds (agelaius phoeniceus)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0021/NQ57508.pdf.

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3

Milks, Maynard. "Female choice and polygyny in red-winged blackbirds, Agelaius phoeniceus." Thesis, University of Ottawa (Canada), 1988. http://hdl.handle.net/10393/5464.

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4

Hill, Ian Franklin. "Post-nestling mortality and dispersal in Blackbirds and Song Thrushes." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298192.

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5

Muma, Katherine Elizabeth Carleton University Dissertation Biology. "Sexual selection and plumage variation in female red-winged blackbirds." Ottawa, 1987.

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6

Shutler, Dave (David Edward) Carleton University Dissertation Biology. "Dynamics of territory acquisition in red-winged blackbirds, Agelaius phoeniceus." Ottawa, 1991.

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7

Dufour, Kevin William Carleton University Dissertation Biology. "Symmetry, quality, and sexual success in male red-winged blackbirds." Ottawa, 1996.

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8

Chamberlain, Daniel. "The factors affecting reproductive success and breeding density in a rural population of blackbirds, Turdus merula L." Thesis, University of Oxford, 1994. http://ora.ox.ac.uk/objects/uuid:640a7ef4-ef7c-49fc-87ec-dd3f4accd108.

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The aim of this thesis was to identify the factors determining reproductive success and breeding density in a rural population of blackbirds occupying contiguous woodland and farmland habitats. Once these factors were identified, an attempt was made to assess the quality of the two habitats in terms of reproductive success. Predation was the major factor affecting reproductive success. There were no significant effects of habitat on predation when habitat was defined as farmland, woodland and woodland edge. When defined in terms of nesting density, high density 'hot-spot' areas had significant

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9

Metz, Karen Jennifer Carleton University Dissertation Biology. "Coloured bands, coverable badges, and sexual selection in red-winged blackbirds." Ottawa, 1991.

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10

Friedman, Nicholas R. "The evolution of carotenoid coloration and pigmentation in the New World blackbirds." Thesis, University of Maryland, Baltimore County, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3563319.

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<p> Plumage color evolution in birds has been the focus of theoretical and empirical research on sexual selection since Darwin. Many of the yellow, orange, and red hues seen in bird plumage are the result of carotenoid pigmentation. While a great number of recent studies have examined the functions of carotenoid-based plumage coloration in a single species, few have examined the evolutionary history of this trait in a comparative phylogenetic context. Using the New World blackbirds as a model clade, I focus on two questions that a comparative phylogenetic approach can uniquely address. First,

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11

McGann, andrew John. "Sexual Dimorphism, Diet, and Body Condition of Rusty Blackbirds Wintering in Virginia." W&M ScholarWorks, 2012. https://scholarworks.wm.edu/etd/1539626923.

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12

Strassburg, Matthew D. "The Evaluation of Christmas Bird Counts as an Indicator of Population Trends and Habitat Selection in Blackbirds and Starlings." Thesis, North Dakota State University, 2011. http://hdl.handle.net/10365/19385.

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Agelaius phoeniceus (red-winged blackbird), Quiscalus quiscula (common grackle), and Sturnus vulgaris (European starling) are three of the most abundant bird species found in North America, and along with Euphagus carolinus (rusty blackbird) and Euphagus cyanocephalus (Brewer’s blackbird), make up a significant proportion of the avian population. Population trends of these four blackbird species and European starlings (EUST)were analyzed from the Christmas Bird Count (CBC) data collected between 1988 and 2008. Population analyses were conducted using linear mixed-effect regressions from t

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13

Fudickar, Adam Michael [Verfasser]. "Partial migration in European blackbirds : a study on alternative phenotypes [[Elektronische Ressource]] / Adam Michael Fudickar." Konstanz : Bibliothek der Universität Konstanz, 2013. http://d-nb.info/1080128786/34.

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14

Dominoni, Davide Michelangelo [Verfasser]. "Effects of artificial light at night on daily and seasonal organization of European blackbirds (Turdus merula) / Davide Michelangelo Dominoni." Konstanz : Bibliothek der Universität Konstanz, 2015. http://d-nb.info/110992304X/34.

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15

Furey, Maria A. "Perch availability and vegetation structure in upland breeding habitat selection by reg-winged blackbirds in a floodplain restoration site /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p1418020.

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16

Pachomski, Amanda L. "Foraging Habitat Characteristics, Prey Availability, and Detectability of Rusty Blackbirds| Implications for Land and Wildlife Management in the Northern Forest." Thesis, State University of New York Col. of Environmental Science & Forestry, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10284445.

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<p> The Rusty Blackbird (Euphagus carolinus) is a migratory songbird that breeds in and near the boreal wetlands of northern New England and Canada. Although the Rusty Blackbird was once common, the species has declined by an estimated 90% since the 1960’s (Greenberg et al. 2010). I used single-season occupancy analysis to model breeding Rusty Blackbirds’ use of 60 beaver (Castor canadensis) influenced wetlands in Coos County, New Hampshire and Oxford County, Maine. I conducted three 30 minute detected/ not detected surveys, surveyed food availability and foraging habitat, and digi

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17

Zúñiga, Sepúlveda Daniel Sebastián [Verfasser]. "On the ecology and evolution of partial migration : a field study on migrant and resident European blackbirds / Daniel Sebastián Zúñiga Sepúlveda." Konstanz : Bibliothek der Universität Konstanz, 2017. http://d-nb.info/112859482X/34.

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18

Saxton, Valerie Patricia. "Influence of ripening grape compounds on behavioural responses of birds." Phd thesis, Lincoln University. Agriculture and Life Sciences Division, 2004. http://theses.lincoln.ac.nz/public/adt-NZLIU20061207.121738/.

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Vineyards in New Zealand suffer bird damage caused by several avian species, including blackbirds and silvereyes. The introduced European Blackbird takes whole grapes which reduces yield. The self-introduced Australasian Silvereye pecks on grapes, leaving them on the vine to be further attacked by fungi and bacteria, and the subsequent off-odours can cause grapes to be refused by the winery or to suffer a price-reduction. Bird control methods remain primitive and largely ineffective during the long ripening period of wine grapes. An ecologically sound method to manage and reduce bird pressure

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19

Powell, Luke Losada. "Rusty Blackbird (Euphagus carolinus) Breeding Ecology in New England: Habitat Selection, Nest Success and Home Range." Fogler Library, University of Maine, 2008. http://www.library.umaine.edu/theses/pdf/PowellLL2008.pdf.

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20

Ducken, Seanse Lynch. "A Hammock of Blackbird Wings." OpenSIUC, 2016. https://opensiuc.lib.siu.edu/theses/1872.

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This collection moves chronologically through the events surrounding the Taylor Bridge Fire. In beginning with a series of poems about a time when the speaker worked at Dairy Queen, this speaker’s connection to the landscape becomes apparent, and, as the fire takes center stage, the speaker becomes more of an observer and commentator. The second section begins with the sonnet sequence that I visualized as being an aftermath of the fire. For instance, these fires begin at the close of summer, and by winter, the area is not getting any snow, which means more dry conditions and more drought in th

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21

Collahuazo, Balarezo Arturo, Dávila Jean Monar, and Maraví Roger Mendoza. "Plan de marketing para Blackbird Games." Master's thesis, Universidad del Pacífico, 2016. http://hdl.handle.net/11354/1883.

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La presente tesis tiene como objetivo elaborar el plan de marketing de Blackbird Games, empresa que se dedicará a la creación y distribución de videojuegos para dispositivos móviles, atendiendo principalmente el mercado estadounidense. El sector de los videojuegos móviles proyecta una facturación mayor a los 35 mil millones de dólares americanos al cierre del año 2016. Solo Estados Unidos representó ingresos por 6,5 mil millones de dólares americanos en el 2015, con un crecimiento proyectado 15,1%, en promedio, para los siguientes años, convirtiéndose en el tercer país más importante en este m

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22

Creighton, Emma. "Reproductive strategies in the European blackbird, Turdus merula." Thesis, Open University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340703.

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23

Markland, Helen Maria. "Maternal investment in the European Blackbird Turdus merula." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.613390.

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24

Magrath, Robert David. "Hatching asynchrony and brood reduction in the blackbird, Turdus merula." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315079.

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25

Eshleman, Michelle Rachel Angelucci. "Red-Winged Blackbird Migration Distance and Its Relationship with Reproduction." Thesis, North Dakota State University, 2020. https://hdl.handle.net/10365/32050.

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Red-winged blackbirds (Agelaius phoeniceus) are one of the most commonly researched birds in North America. My study aims to build upon what is known about migration patterns and reproduction in this species. My first objective was to determine if individuals that breed together travel to similar overwinter locations and to investigate the similarities or differences in the timing of migratory movements. My second objective was to examine the relationship between spring migration distance and reproduction. In short, I found that female blackbirds travel to more southern overwinter locations th

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26

Wright, James R. "Migration Ecology of a Declining Songbird, the Rusty Blackbird (Euphagus carolinus)." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1511958077080453.

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27

Lightbody, Jill Patricia Carleton University Dissertation Biology. "Female settling patterns and polygyny in the yellow-headed blackbird (Xanthocephalus xanthocephalus)." Ottawa, 1986.

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28

Shanahan, Mary. "My Name is a Blackbird: Dancing Toward a Productive Ontology of Change." Diss., Temple University Libraries, 2019. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/570655.

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The dissertation is a theoretical autobiography weaving personal narrative, reflective practice, and engagement with extant sources, emphasizing somatic innovators and French philosophers Giles Deleuze and Felix Guattari. Rhizomatically structured, the dissertation takes as its locus of content My Name is a Blackbird, an extended choreographic project and series of performances I enacted between 2006 and 2010. Research begun during Blackbird further bled into subsequent years of solo and ensemble dance practice and performance, teaching, and contemplation, and continued to manifest personally

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29

Saxton, V. P. "Influence of ripening grape compounds on behavioural responses of birds." Diss., Lincoln University, 2004. http://hdl.handle.net/10182/28.

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Vineyards in New Zealand suffer bird damage caused by several avian species, including blackbirds and silvereyes. The introduced European Blackbird takes whole grapes which reduces yield. The self-introduced Australasian Silvereye pecks on grapes, leaving them on the vine to be further attacked by fungi and bacteria, and the subsequent off-odours can cause grapes to be refused by the winery or to suffer a price-reduction. Bird control methods remain primitive and largely ineffective during the long ripening period of wine grapes. An ecologically sound method to manage and reduce bird pressure

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30

Bussche, Jens von dem. "Modelling the spatial distribution of blackbird (Turdus merula) and ring ouzel (Turdus torquatus) in Switzerland." Master's thesis, Universität Potsdam, 2006. http://opus.kobv.de/ubp/volltexte/2007/1401/.

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To characterise the habitat preferences of ring ouzel (Turdus torquatus) and blackbird (T. merula) in Switzerland, we adopt species distribution modelling and predict the species’ spatial distribution. We model on two different scales to analyse in how far downscaling leads to a different set of predictors to describe the realised habitat best. While the models on macroscale (grid of one square kilometre) cover the entire country, we select a set of smaller plots for modelling on territory scale. Whereas ring ouzels occur in altitudes above 1’000 m a.s.l. only, blackbirds occur from the lowlan

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31

Clark, Robert G. "Effects of agricultural land use on the biology of the red-winged blackbird (Agelaius phoeniceus)." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=71964.

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The biology of the red-winged blackbird (Agelaius phoeniceus) was studied in relation to variations in agricultural landscapes of southwestern Quebec, eastern Ontario, and southwestern Ontario by examining the relationships between corn (Zea mays) production and population size, distribution of territorial males, and morphology. Dietary studies showed consistent use of corn during their 6-9 month residency in these regions, and during winter months.<br>A positive correlation was found between independent estimates of the density of males and counts of red-wings obtained from the North American

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32

Niner, Megan Denise. "The Effectiveness of 9, 10 Anthraquinone as a Repellent to Protect Oilseed Sunflower from Blackbird Depredation." Thesis, North Dakota State University, 2014. https://hdl.handle.net/10365/27369.

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Across the Prairie Pothole Region of North America, blackbirds (Icteridae) cause millions of dollars in damage to sunflower crops annually, but effective methods to prevent or limit blackbird damage to sunflower crops are lacking. I tested two repellents (Avipel and AV2022, both with active ingredient 9, 10 anthraquinone) under application conditions that would be appropriate for large-scale, sunflower farming in two consecutive years. In 2012, I conducted daily avian point counts and weekly crop damage surveys to assess blackbird use of, and damage to, plots of sunflowers were sprayed with Av

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33

Greenwood, Hamilton. "Sexual selection and delayed plumage maturation in the sub-adult male cohort of the red-winged blackbird (Agelaius phoeniceus)." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=72067.

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The variable plumage characteristics of the sub-adult male cohort of the red-winged blackbird (Agelaius phoeniceus) are described. At one extreme of the plumage variation, there are a group of sub-adult males that are indistinguishable from the adult males. These birds can only be correctly aged by cloacal examination for the bursa of Fabricius in the autumn. At the other extreme, approximately 4% of the population are near perfect female-mimics. A simple scoring system based on the interspersion of dark feathers in the epaulet is presented, which permits classification of the sub-adult males

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34

Pribil, Stanislav. "Tests of hypotheses for the occurrence of polygyny in territorial birds using the red-winged blackbird (Agelaius phoeniceus)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq21977.pdf.

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35

Isabelle, André L. "The role of predation in the adaptive value of coloniality and polygyny in the yellow-headed blackbird, Xanthocephalus xanthocephalus." Thesis, University of Ottawa (Canada), 1988. http://hdl.handle.net/10393/5461.

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36

Wood, Matthew James. "Parasites, reproductive costs and sexual selection : studies of the European blackbird Turdus merula and the great tit Parsus major." Thesis, University of Sheffield, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340166.

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37

Kaiser, Brandon Amberg. "Chemical Repellents for Reducing Blackbird Damage on Mature Sunflowers: The Importance of Plant Structure and Avian Behavior in Field Applications." Thesis, North Dakota State University, 2019. https://hdl.handle.net/10365/29793.

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Across North America, blackbirds (Icteridae) depredate high-energy crops, such as sunflower (Helianthus annuus), placing an economic burden on producers. Chemically-defended crops, in the form of human-applied repellents, may induce birds to forage elsewhere if a learned aversion can be established. However, repellent deployment must be feasible for producers at the scale of commercial agriculture. Thus, my main objective was to evaluate the efficacy of anthraquinone-based repellents applied to ripening sunflower for reducing blackbird damage. I conducted concentration response (no-choice) and

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38

Jalil, Nauman. "Development of Performance Optimized Rotation Tolerant Viola-Jones Based Blackbird Detection, a Throughput Optimized Asynchronous Mac Implementation, and Automated Wheat Lodging Estimation." Diss., North Dakota State University, 2020. https://hdl.handle.net/10365/31812.

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The research described in this doctoral dissertation focuses on three main topics:1) performance optimization of the Viola-Jones Algorithm (VJA) for red-winged blackbird (Agelaius phoeniceus) detection, 2) further increasing performance of an already optimized asynchronous Multiply and Accumulate (MAC) unit, and 3) development of a framework to differentiate between lodging and non-lodging areas of a field from visible and multispectral aerial drone images. The first topic explores VJA rotational robustness, since VJA object detection is inherently not invariant to in-plane object rotation. An

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39

Cooper, Steven. ""In My Church We Don't Believe in Homosexuals": Queer Identity and Dominant Culture in Three Texts of the AIDS Era." Scholar Commons, 2010. http://scholarcommons.usf.edu/etd/3439.

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My thesis seeks to examine the relationship that exists between queer selfidentification and heterosexual hegemonic/heteronormative power in three works of and about the AIDS era. Working from feminist and queer theory perspectives, I first chart the way in which a problematic identity—be that identity a non-identity of utter invisibility, a sick identity, a dangerous identity, or (most commonly) an identity of utter hedonism disconnected from any notions of attachment, affection, or love beyond the physical sexual act—has been and is still wholly adopted by some. I do this principally with a

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40

Mahoney, Jessica. "The Applicability of Physiology for Conservation and Management Purposes: A Case-Study Using the Breeding Season of the Red-winged Blackbird (Agelaius Phoeniceus)." Diss., North Dakota State University, 2017. https://hdl.handle.net/10365/26502.

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Physiology has the potential to play a unique and important role in conservation and management practices by helping identify the mechanistic responses of populations to environmental changes, and providing physiological tools and knowledge that can be applied to help solve conservation and environmental problems. It has previously been unclear, however, if the increase of physiology in conservation and management literature has translated into the application of physiological tools and knowledge into conservation and management plans. There were two purposes of this disquisition: 1) analyze h

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41

Sjöström, Lars. "The spatial distribution of birds in southern Sweden : A descriptive study of willow warbler, nightingale, blackbird, robin and grey flycatcher in Svealand and Götaland." Thesis, Uppsala universitet, Statistiska institutionen, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-275343.

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This is a thesis about the spatial distribution of willow warbler, nightingale, blackbird, robin and grey flycatcher in Svealand and Götaland, that is the southern third of Sweden. It explores the possibilities of using statistics to describe the distribution and variation of birds in a given region.The data was collected by observation of birds on sites called standard routes, with 25 kilometres between them. The standard routes are the points in a grid net placed upon the map of Sweden. The purpose of standard routes is to represent the birds in Sweden both geographic and biotopological.The

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42

Rasmussen, Justin Lee. "Investigations of evolutionary arms races and host diversity in avian brood parasite systems." Thesis, University of Canterbury. Biological Sciences, 2013. http://hdl.handle.net/10092/8959.

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Obligate brood parasites rely solely on other species, the hosts, to incubate their eggs and raise their offspring, which often reduces the host’s reproductive output. This reproductive cost has led to the evolution of anti-parasite adaptations among hosts, which in turn, has led to better trickery by parasites, a process termed an evolutionary arms race. The objective of this thesis was to investigate host-parasite coevolutionary arms races to address questions of host-use diversity. Host diversity varies dramatically among brood-parasitic species, but reasons for variations in host-use among

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43

MacFarlane, Archie. "Frugivorous mutualisms in a native New Zealand forest : the good the bad and the ugly." Thesis, University of Canterbury. Biological Sciences, 2012. http://hdl.handle.net/10092/7636.

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Widespread anthropogenic invasions have prompted concerns that naturalized organisms could threaten biodiversity. In particular, invasive weeds can negatively affect native biota through a variety of means, including disrupting mutualisms. This thesis was designed to observe and test dispersal mutualisms in a native forest during autumn when the majority of plant species are fruiting. In this thesis I examined whether the invasive plant barberry (Berberis glaucocarpa) was influencing the behaviour of a native frugivore bellbird (Anthornis melanura) and a range of dispersal related services i

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44

Watkins, Nigel G. "Ecological correlates of bird damage in a Canterbury vineyard." Lincoln University, 1999. http://hdl.handle.net/10182/508.

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Birds are a major pest in vineyards both in New Zealand and overseas. There is a need for new behavioural research on birds' foraging habits and feeding preferences in vineyards, as much of the literature to date is anecdotal. Research on cues to birds' feeding will provide a basis on which new deterrent and control strategies can be devised. Spatial-and temporal bird damage in a small vineyard block was mapped to find if damage was correlated with grape maturity and environmental factors. Vineyard and field observations of bird behaviour using video technology combined with preference experim

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45

Meillère, Alizée. "Influence de l’environnement urbain sur les passereaux : une approche éco-physiologique et éco-toxicologique." Thesis, La Rochelle, 2015. http://www.theses.fr/2015LAROS015/document.

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L’urbanisation grandissante est certainement à l’heure actuelle parmi les phénomènes à l’origine des changements les plus importants induits par l’homme sur notre planète, et soulève donc de nombreuses questions concernant les conséquences d’une telle perturbation de l’environnement sur la biodiversité. La vie urbaine est souvent caractérisée par des conditions jugées comme contraignantes (fragmentation, dégradation et perte d’habitats, pollutions chimiques, sonores et lumineuses accrues, etc.) pouvant avoir des effets néfastes sur les vertébrés. Cependant, les mécanismes par lesquels l’urbani

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46

Liu, Irene Ai-Yin. "Molecular Causes and Consequences of Sperm Competition in Agelaius Blackbirds." Diss., 2014. http://hdl.handle.net/10161/8795.

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<p>Sexual selection has long been framed as a process that ends when copulation is achieved. However, in species with polyandry (multiple mating by females), competition persists after mating inside the female's reproductive tract, where sperm from multiple males must then compete to fertilize a female's eggs. This post-mating process, known as sperm competition, is thought to be just as strong as the competition to secure a mate. Because sperm competition has only recently been observed, its evolutionary role remains largely unknown. In this dissertation, I use field, laboratory and computati

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47

Clotfelter, Ethan D. "Impact of brown-headed cowbird brood parasitism on red-winged blackbirds and factors influencing patterns of parasitism." 1998. http://catalog.hathitrust.org/api/volumes/oclc/40742915.html.

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48

Misof, Katharina [Verfasser]. "Eurasian blackbirds (Turdus merula) and their gastrointestinal parasites : a role for parasites in life history decisions? / vorgelegt von Katharina Misof." 2005. http://d-nb.info/978109996/34.

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49

"Physiological, morphological, and behavioural effects of developmental exposure to Aroclor 1254 in nestling and juvenile songbirds." Thesis, 2014. http://hdl.handle.net/10388/ETD-2014-12-1898.

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Over the past several decades, there has been growing concern among the public and scientific community regarding adverse health effects resulting from exposure to natural and synthetic compounds that act as endocrine disrupters. The structural similarity of many of these compounds to natural hormones and receptors, as well as their ubiquity in the environment, can result in the potential for interference with the endocrine system of wildlife and humans. Much of the research examining the adverse effects of wildlife exposure to endocrine disrupting chemicals (EDCs) has focused on effects on re

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50

Fortney, Robert Gene Anthony. "The ecology of marsh mosquitoes and their attraction to mallard ducks, domestic chickens and yellow-headed blackbirds at Oak Hammock Marsh, Manitoba." 1990. http://hdl.handle.net/1993/7209.

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During the years of 1985 to 1987 a survey was carried out to determine the species of mosquitoes that were breeding and host seeking in Oak Hammock Marsh. The abundance of adult female mosquitoes in the marsh was monitored with Solid State Army Miniature (SSAM) light traps, which were used to trap host seeking adults. The abundance of raft laying species was also monitored in 1985 and 1986, using ovipools known to be attractive to Cx. tarsalis Coquillett, Cx. restuans Theobald and Cs. inornata (Williston). Larval breeding was monitored by regular sampling of 20 sampling sites within the mars

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