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Dissertations / Theses on the topic 'Breeding behaviors'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Gocek, Cagri. "Breeding Success And Reproductive Behavior In A White Stork ( Ciconia Ciconia) Colony In Ankara." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607791/index.pdf.

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White Stork ( Ciconia ciconia, Linnaeus, 1758) is a summer visitor and passage migrant in Turkey. Although being widespread in summer near wetlands of Turkey, except for the eastern and western parts of the Black Sea Region, there has been no research on this species involving regular monitoring of nests. In this study, breeding success and survival of nestlings in a population in Kizilcahamam-Ankara as well as behavioral differences among nests and their probable consequences on breeding success were studied. Regular field observations throughout six-month long breeding seasons between 2003

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2

GALVAO, BRUNO DE OLIVEIRA. "DPAG ELETRICAL STIMULATION EFFECT IN DEFENSE BEHAVIORS: IN THE ROSTRAL ANTERIOR CINGULATED CORTEX PARTICIPATION AND IN CARIOCA HIGH-FREEZING AND LOW-FREEZING BREEDING LINES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2012. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=21136@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>A matéria cinzenta periaquedutal dorsal (MCPD) é associada com comportamento defensivo e ataques de pânico em humanos. Estimulações elétricas da MCPD induzem a um repertório de defesa: o congelamento pré fuga, reação de fuga e congelamento pós fuga. Evidências já apresentadas suportam a hipótese que enquanto o congelamento pré fuga seria um modelo de ataque de pânico o congelamento pós fuga seria um modelo de transtorno de pânico. Os resultados no experimento 1 indicaram que a

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3

Nefdt, Rory John Charlton. "Lek-breeding in Kafue lechwe." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307542.

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4

Macleod, Kirsty Jean. "Allonursing in the cooperatively breeding meerkat." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708517.

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5

Lapidge, Keryn Lea. "Breeding of Hygienic Disease Resistant Bees." University of Sydney. Biological Sciences, 2002. http://hdl.handle.net/2123/810.

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Hygienic behaviour in the honeybee (Apis mellifera) has been shown to be an effective control mechanism against brood diseases such as chalkbrood and AFB. Chalkbrood has proven to be problematic for the Australian honey industry since it was identified here in 1993. Hygienic behaviour is a much studied trait. Rothenbuhler investigated the genetic basis of hygienic behaviour, proposing a two-gene model to explain the uncapping and removal of dead brood. His elegant experiment remains the textbook example of a behavioural genetic study. Although this model has been challenged, it is still g

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6

Tisdall, Carol. "Aggression among captive mallards and black ducks during the breeding season." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23302.

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The behaviour of captive mallards (Anas platyrhynchos) and black ducks (Anas rubripes) was studied from the end of March to mid-June in 1991 and 1992 to determine the extent of interspecific aggression exhibited and the effect of sympatry and allopatry on interactions between the two species.<br>Mallards were more aggressive than black ducks regardless of sex and origin, though both species were equally attacked in both years, male ducks were more aggressive and more attacked than female ducks regardless of species and origin in both years, and ducks of sympatric origin were more aggressive th

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7

Gauthier, Gilles. "A functional analysis of territorial behavior in breeding buffleheads." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25792.

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In this study, I investigate the adaptive significance and consequences of territorial behavior in buffleheads (Bucephala albeola) . The aims are: (1) to test the hypotheses that territorial males defend the food supply, the female or the nest site, (2) to test the hypothesis that brooding females defend the food supply, and (3) to examine whether territorial behavior or nest site availability limits breeding density. 1) Males defend a territory from the pre-laying stage until late incubation. The size of male territories was not related to food abundance, and food was poorly correlated with

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8

Dawson, James William 1957. "The cooperative breeding system of the Harris' Hawk in Arizona." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276864.

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I studied the social organization of the Harris' Hawk (Parabuteo unicintus) in Arizona, 1984-1986. Breeding groups ranged in size from 2-7 and averaged 3.8 hawks. Offspring fledged during previous nesting attempts accounted for 72% of immature helpers. Aggregations averaged 5.9 hawks and were composed primarily of individuals from 2 or 3 neighboring groups. I identified 2 affiliative behaviors and 5 aggressive behaviors that Harris' Hawks used during social interactions. Behaviors that constituted overt aggression were rare in groups, but occurred in aggregations during interactions between ha

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9

Rands, Sean Alexander. "Dynamic reserve allocation in breeding birds." Thesis, University of Bristol, 2000. http://hdl.handle.net/1983/ec222c2b-4d29-4abf-8cc8-10dab9584007.

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10

Mrykalo, Robert. "The florida burrowing owl in a rural environment breeding habitat, dispersal, post-breeding habitat, behavior, and diet /." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001102.

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11

Bennun, Leon Alan. "Communal breeding in Grey-Capped Social Weavers (Pseudonigrita arnaudi)." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235975.

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12

Parra, Jorge Enrique. "Breeding system evolution of Malagasy plovers : natural behaviours and experiments." Thesis, University of Bath, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.667734.

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Breeding systems encompass a diverse range of mating and parental care strategies that develop in relation to reproductive success. However, which factors determine the reproductive strategy that will achieve success, in terms of Darwinian fitness, is still a controversial issue in theoretical and empirical behavioural ecology. I argue in this dissertation that animal reproductive strategies depend on variation in the social environment, which is influenced by the number of available mates in a population. The purpose of this thesis was therefore to investigate the role of mating opportunities

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13

Niebuhr, V. "The coordination of behaviour between breeding herring gull mates." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355792.

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14

Narasimhamoorthy, Brindha. "Breeding behaviour and genetic analysis of wheat synthetic hexaploids /." Search for this dissertation online, 2003. http://wwwlib.umi.com/cr/ksu/main.

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15

Robinson, Douglas A. "The relationship of nestling qualities to survival and breeding strategies of cooperatively breeding American crows in Ithaca, NY." Diss., Online access via UMI:, 2009.

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16

Krebs, Elizabeth Ann. "Reproduction in the cattle egret (Bubulcus ibis ibis) : the function of breeding plumes." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=60507.

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This study investigates the colonization of Barbados, the seasonality of breeding, and the function of breeding plumes in the cattle egret Bubulcus ibis ibis. Colonization occurred around 1956, and the island now has 4 colonies. Numbers of birds at each colony are still increasing. Colonies are evenly spaced around the island. Plumage scores varied seasonally, and males had higher scores than females. Breeding activity peaked in July-August and November-March. Conspecific interference may force poorly plumed birds to breed when environmental conditions are poor. Chick mortality was primarily f

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17

Fowler, Ada Christine. "Population genetic structure and breeding philopatric behavior of Cackling Canada Geese /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2003. http://uclibs.org/PID/11984.

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18

Catry, Paulo X. "Ecology and behaviour of Great Skuas breeding on Foula (Shetland)." Thesis, University of Glasgow, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388551.

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19

Parsons, N. J. "Quantifying abundance, breeding and behaviour of the African black oystercatcher." Doctoral thesis, University of Cape Town, 2006. http://hdl.handle.net/11427/4390.

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20

Briggs, K. B. "The ecology of an inland breeding population of oystercatchers (Haematopus ostralegus L.)." Thesis, Liverpool John Moores University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373957.

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21

McGrady, Michael J. "Ecology and breeding behaviours of urban Sparrowhawks (Accipiter nisus) in Edinburgh, Scotland." Thesis, University of Edinburgh, 1991. http://hdl.handle.net/1842/11122.

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Edinburgh has 20-35 breeding pairs of Sparrowhawks. Their ecology is similar to those living in rural areas (See: Newton 1986). House Sparows were the most important Sparrowhawk prey: 27% of prey items, and 22% of biomass. Sparrowhawks fed on whatever prey, within a certain size range, was available. The mean nearest-neighbour distance was 1.3 ± 0.08 km. There was no indication that the composition of the population differed from that found in the rural areas. Adult female survival was 53%, yearling survival 41%. Pollutants were not particularly high. The average residency for a breeding femal

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22

Glen, N. W. "The co-operative breeding behaviour of the long-tailed tit (Aegithalos caudatus)." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233483.

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23

Convey, Peter. "Influences on mating behaviour and reproductive success in the Odonata." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.330166.

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24

Bailey, John Paul. "Cytology and breeding behaviour of giant alien Polygonum species in Britain." Thesis, University of Leicester, 1989. http://hdl.handle.net/2381/9471.

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An investigation into the cytology and breeding behaviour of the large asiatic Reynoutria species (R. japonica and R.sachalinensis), which were introduced into the British Isles in the last century and are now a significant component of the British Flora. A number of colonies have been examined morphologically and cytologically; hybrids have been identified and artificially re-synthesised in the laboratory. The sex-expression of the Reynoutria taxa has been examined, and has been found to be gynodioecious. R. japonica var. japonica has been found only as male-sterile plants in the British Isle

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25

Potticary, Ahva L., Jenélle L. Dowling, Douglas G. Barron, Daniel T. Baldassarre, and Michael S. Webster. "Subtle benefits of cooperation to breeding males of the Red-backed Fairywren." AMER ORNITHOLOGISTS UNION, 2016. http://hdl.handle.net/10150/614984.

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Cooperative breeding is a phenomenon whereby breeding and nonbreeding individuals collectively provision young. Nonbreeding group members ("helpers'') may gain indirect and/or direct fitness benefits by breeding in a group, but there has been conflicting evidence regarding the benefits to breeders. In fact, the presence of helpers may sometimes be detrimental to aspects of breeder fitness. For example, in some species of the chiefly Australian genus Malurus, breeding males with helpers have lower within-pair paternity than do males without helpers. Additionally, indirect benefits to breeding m

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26

Castro, Ana Mafalda Lopes Sardica Velez de. "Mexican gray wolf courtship and mating : behavior & basic endocrinology during breeding season." Master's thesis, Universidade de Lisboa. Faculdade de Medicina Veterinária, 2016. http://hdl.handle.net/10400.5/11368.

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Dissertação de Mestrado Integrado em Medicina Veterinária<br>The Mexican gray wolf is the rarest subspecies of gray wolf in North America. It is officially “endangered” and its survival relies on good captive management and breeding programs. The present study’s main purpose is behavior evaluation and hormonal profile assessment during proestrus and estrus, in this species. Behavioral data and feces were obtained during the breeding season at the Endangered Wolf Center, and analyzed at the Saint Louis Zoo. Several behaviors presented moderate correlations. Differences were found between the f

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27

Buschhaus, Nancy Lee. "The relationship of steroid hormones and breeding behavior in eastern bluebirds, Sialia sialis /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu148794273980725.

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28

Stucke, Benjamin James Stucke. "The Interaction between Within-Group and Neighborhood-Level Social Behavior ofCooperatively Breeding Organisms." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1532471182186053.

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29

Mays, Nora Ann 1952. "Hormonal correlates of reproductive behavior in the cooperatively breeding Harris' hawk (Parabuteo unicinctus)." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277088.

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I correlated the plasma titers of testosterone (T), estradiol (E), luteinizing hormone (LH), progesterone (P), corticosterone (B) and prolactin (Prl) with the reproductive behavior of breeders and adult and juvenal-plumaged helpers of the Harris' Hawk. During nest building, breeding males and adult male helpers had higher T levels than those in immature male helpers. Among females, only breeders had elevated T levels during nest building. During nest building, breeding females had higher E levels than those in adult and immature females helpers. Patterns of LH were similar to those of T and E.

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30

Vullioud, Philippe. "Hormones and cooperative behaviours in the Damaraland mole-rat (Fukomys damarensis)." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/271131.

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Large individual differences in cooperative contributions are common within animal societies such as cooperative breeders, where helpers care for offspring which are not their own. Understanding this variation has been a major focus in behavioural ecology and while evidence has shown that individuals are capable to adaptively adjust their cooperative behaviours, the physiological mechanisms underlying such adjustments remain poorly understood. Steroid hormones are prominent candidates to regulate cooperative behaviours due to their ability to integrate internal physiological state and environm

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31

Le, Roux Marleen. "Amphibian diversity and breeding behaviour in the Okavango Delta / Marleen Le Roux." Thesis, North-West University, 2010. http://hdl.handle.net/10394/4467.

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Amphibians are of great ecological importance and a loss of species will have widespread and dire consequences. Recent population declines and extinctions have resulted in amphibians being labelled the most threatened vertebrate class on a global scale. The unique Okavango ecosystem is well known and documented, yet the amphibians of this region are poorly known. This project aimed at assessing diversity in the Okavango Delta by testing isolation as a possible driver for community composition; determining the effect of hydrology on breeding behaviour; and assessing the status and prevalence of

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32

Ekstrom, Jonathan Michael Maynard. "The breeding biology and behaviour of the greater vasa parrot Coracopsis vasa." Thesis, University of Sheffield, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275045.

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33

Allen, Penelope J. "Molecular analysis of grey seal (Halichoerus grypus) breeding behaviour and social organisation." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388854.

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34

Kimball, Scott Allen. "Behavioral interactions of breeding bald eagles (Haliaeetus luecocephalus) at Lake Cascade, Idaho." [Boise, Idaho] : Boise State University, 2009. http://scholarworks.boisestate.edu/td/40/.

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35

Schmid, Rachel. "The influence of the breeding method on the behaviour of adult African grey parrots /." Bern : [s.n.], 2004. http://www.zb.unibe.ch/download/eldiss/04schmid_r.pdf.

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36

Desjardins, Julie K. Balshine Sigal. "Behavioural ecology and endocrinology of cooperative breeding in the cichlid, neolamprologus pulcher." * McMaster only, 2006. http://proquest.umi.com/pqdweb?index=0&did=1367843081&SrchMode=1&sid=2&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1194636578&clientId=22605.

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37

Gould, Geoffrey Michael. "Signaling and Communication in the Breeding Behavior of the Lesser Prairie-Chicken (Tympanuchus pallidicinctus)." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1595442814242732.

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38

Loegering, John P. "Piping plover breeding biology, foraging ecology and behavior on Assateague Island National Seashore, Maryland." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-09052009-040402/.

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39

Howie, Jennifer Ann. "Use of genetic variation in short-term feeding behaviour in broiler breeding programmes." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/7563.

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Genetic variation between individuals is of great importance for the development of breeding programmes, to select for animals with the most favourable traits. Many production companies routinely measure the feed intake of their animals, in order to calculate efficiency traits such as feed conversion ratio. The development of electronic feeders which automatically record individual intake on a visit-by-visit basis now allows the short-term feeding behaviour of animals to be monitored and analysed as another source of variation between individuals. Due to differences in the resolutions of these

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40

Register, Sarah M. "Breeding biology and habitat associations of cerulean warblers in southern Indiana." Virtual Press, 2007. http://liblink.bsu.edu/uhtbin/catkey/1372052.

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The Cerulean Warbler (Dendroica cerulea), a once common summer inhabitant and breeder in southern Indiana, has declined at both local and continental population levels. Effects of specific silvicultural practices on the distribution and abundance of the Cerulean Warbler is unknown. During the summers of 2005 & 2006, Cerulean Warblers were surveyed within the Morgan-Monroe and Yellowwood state forests, as well as the Hoosier National Forest in southern Indiana. Three forest types were surveyed; unharvested reference sites were compared with single tree selection treatments and treatments where

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41

Mizuguchi, Daisuke. "Underwater vocal repertoire and their function in three ice-breeding seals in the Arctic." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215373.

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42

Berne, Erlend. "Safe, selfish state-independent mobbing behaviour in the cooperatively breeding apostlebird (Struthidea cinerea)." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for biologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13150.

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In the last few decades stochastic dynamic modeling (SDM) has been used to explore adaptive state-dependent strategies in a whole host of different theoretical problems in behavioural ecology, with considerable success. It has allowed us to better understand cooperative behaviours such as sentinel behaviour, and it might allow us to more fully understand other cooperative behaviours with alternative dynamics. In a recently developed SDM, anti-predator behaviour was examined and a counter-intuitive prediction has emerged: that mobbing effort should be completely independent of state. In this st

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43

Westcott, David Andrew. "Behaviour and social organization during the breeding season in Mionectes oleagineus (Aves, Tyrannidae)." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30524.

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Mionectes oleagineus (Aves, Tyrannidae) is a small, sexually monomorphic, lek breeding bird. The behaviour and mating system of this species were studied on Costa Rica's Osa Peninsula over two years. In this thesis I ask three questions: 1) What kind of social organization does M. oleagineus exhibit? 2) Does habitat influence male display dispersion? and 3) What is the function of song in attracting mates and in male-male interactions? In Chapter 2, I describe M. oleagineus' social organization. There were three categories of males: territory owners, satellites and floaters. The latter 2 cate

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44

White, Jennifer L. "Management of captive whooping cranes (Grus americana ) to improve breeding behaviour and success." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0029/MQ66980.pdf.

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45

Cunningham, James B. "Breeding ecology, social organization and communicatory behaviour of the brown creeper (Finschia novaeseelandiae)." Thesis, University of Canterbury. Zoology, 1985. http://hdl.handle.net/10092/6660.

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The breeding ecology, social organization and communicatory behaviour of the brown creeper (Finschia novaeseelandiae) were studied. Brown creepers lay large eggs, young develop slowly and incubation and nestling periods are long. Mortality in adults is low but high in juveniles. I suggest that the species' breeding strategy is an adaptation to the mild coastal climate of New Zealand. Members of breeding pairs remain together and defend territories throughout the winter. Juveniles form sibling flocks and this association of close relatives may help explain winter mobbing behaviour in the spec

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46

Ridley, Amanda Ruth. "The causes and consequences of helping behaviour in the cooperatively breeding Arabian babbler." Thesis, University of Cambridge, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.619891.

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47

Collins, Philip. "The movement ecology of a breeding seabird : an investigation using accelerometry." Thesis, University of Roehampton, 2018. https://pure.roehampton.ac.uk/portal/en/studentthesis/The-movement-ecology-of-a-breeding-seabird(e36b8ee9-9f13-498e-93bd-6546910d9ce5).html.

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Animal movement is a ubiquitous process and can have consequences ranging from an individual’s energy expenditure to ecosystem dynamics. This study uses biologgers, primarily accelerometers, to record and examine the at-sea behaviours of black-legged kittiwakes (Rissa tridactyla) during their breeding period. Accelerometers record the acceleration of an instrumented animal to give an indication of their behaviour and movements, yet their output can be particularly difficult to interpret. As such, this thesis begins with a method developed for the assignation of coarse-scale behaviours to accel

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48

Prior, Nora H. "The neuroendocrine regulation of pair-maintenance behavior in the opportunistically breeding zebra finch (Taeniopygia guttata)." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/51519.

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Understanding affiliative behavior is critical to understanding social organisms. While affiliative behaviors are known to exist across taxa and a wide range of contexts, the bulk of what is known about the physiological regulation of affiliation comes from studies of mammals. The zebra finch (Taeniopygia guttata) is a good model to further our understanding of the neuroendocrine regulation of affiliative behaviors. Zebra finches form sexually monogamous pair bonds, which they actively maintain throughout the year. Thus, in this system we can examine the regulatory mechanisms of affiliation as

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49

Wilson, Theresa M. "Patterns of sentinel behavior at the nest in the cooperatively breeding American crow (Corvus brachyrhynchos)." Diss., Online access via UMI:, 2008.

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50

Conners, Melinda G. "Comparative behavior, diet, and post-breeding strategies of two sympatric North Pacific albatross species (Phoebastria sp.)." Thesis, University of California, Santa Cruz, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=3746719.

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<p>A fundamental condition of the struggle for existence is resource limitation. Optimal foraging theory describes how individuals refine behavior to most efficiently exploit available resources. For colonial breeding animals, such as seabirds, competition for limited resources is amplified by a high density of competitors at feeding grounds near the colony, which can lead to a diversification of foraging strategies that best exploit available resources. Laysan and black-footed albatrosses (Phoebatria immutabilis and P. nigripes, respectively) breed sympatrically and synchronously in dense col

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