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Dissertations / Theses on the topic 'Omnivory'

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Published: 4 June 2021

Last updated: 9 February 2022

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1

Hille, Ris Lambers Reinier. "Persistence of omnivory." Amsterdam : Amsterdam : [s.n.] ; Universiteit van Amsterdam [Host], 2005. http://dare.uva.nl/document/79383.

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2

Vance, James Aaron. "Permanent Coexistence for Omnivory Models." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/28660.

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One of the basic questions of concern in mathematical biology is the long-term survival of each species in a set of populations. This question is particularly puzzling for a natural system with omnivory due to the fact that simple mathematical models of omnivory are prone to species extinction. Omnivory is defined as the consumption of resources from more than one trophic level. In this work, we investigate three omnivory models of increasing complexity. We use the notion of permanent coexistence, or permanence, to study the long-term survival of three interacting species governed by a mi

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3

Richoux, Nicole Bertine, Ilke Vermeulen, and Pierre William Froneman. "Stable isotope ratios indicate differential omnivory among syntopic rocky shore suspension-feeders." Springer Berlin Heidelberg, 2014. http://hdl.handle.net/10962/68261.

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Publisher version<br>We utilised stable isotope ratios to assess differences in diet among three indigenous and syntopic rocky shore suspension-feeders (mussels Perna perna, barnacles Tetraclita serrata, and polychaetes Gunnarea gaimardi). We also determined the spatial and temporal variability in the suspension-feeder diets by collecting specimens on two occasions from two regions adjacent to hydrologically distinct river mouths (i.e. one with larger annual freshwater throughput than the other). The results showed that the isotopic niches (used as proxies for trophic niches) of the three spec

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4

Frank, Steven David. "Consequences of omnivory and alternative food resources on the strength of trophic cascades." College Park, Md. : University of Maryland, 2007. http://hdl.handle.net/1903/7221.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Entomology. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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5

Geddes, Pamela. "Omnivory and periphyton mats: uncoupling and quantifying consumer effects in the Florida Everglades." FIU Digital Commons, 1999. https://digitalcommons.fiu.edu/etd/3585.

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The role of omnivores in structuring communities is poorly understood. I studied the effect of two abundant omnivores, grass shrimp (Palaemonetes paludosas) and eastern mosquitofish (Gambusia holbrooki), on periphyton biomass of the Florida Everglades. I performed field experiments to test for consumer top-down and “complex” top-down effects on periphyton biomass. My experiments suggested that shrimp and mosquitofish had consumptive effects on periphyton but in many instances, periphyton wet weight, AFDM, and chlorophyll a increased significantly with shrimp or fish density, suggesting compens

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6

Brenner, Robert J. "Influence of Neonicotinoid Seed Treatment on Two Co-Occuring Arthropod Pests, Two-Spotted Spider Mite (Tetranychus urticae) and Western Flower Thrips (Frankliniella occidentalis)." Thesis, North Dakota State University, 2019. https://hdl.handle.net/10365/31549.

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Insecticidal neonicotinoid seed treatments in agriculture is a common insect pest management strategy. Seed treatments have systemic and residual toxicity, which are effective against target insect pests. However, effects on other arthropod pests is less straightforward. We evaluated the effects of a neonicotinoid seed treatment, thiamethoxam, on two soybean pests, herbivorous two-spotted spider mites (Tetranychus urticae Koch) and an omnivore and facultative predator of spider mite eggs, western flower thrips (Frankliniella occidentalis Pergande). We used greenhouse and laboratory experiments

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7

Hellmann, Claudia. "Die Bedeutung invertebrater Prädation in Fließgewässernahrungsnetzen unter Berücksichtigung des Einflusses benthivorer Fische." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-60815.

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Biomanipulation im Sinne einer top-down Steuerung des Nahrungsnetzes wurde in Standgewässern intensiv erforscht und wird als Mittel zur Verbesserung der Wasserqualität bzw. Verringerung der Eutrophierungserscheinungen eingesetzt. Ebenso könnte die Idee der Biomanipulation genutzt werden, um die Eutrophierung in kleinen Fließgewässern zu verringern. Eine Förderung benthischer herbivorer Schlüsselorganismen (z.B. Eintagsfliegenlarven) durch die Reduzierung des Fischfraßdruckes könnte helfen, Algenmassenentwicklungen zu vermeiden. Studien zur Biomanipulation von Nahrungsnetzen in Standgewässern z

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8

Graham, Mark Douglas. "Omnivory and selective feeding by zooplankton along a lake production gradient, complementary ¹§5N isotope and gut pigment analyses." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0027/MQ30475.pdf.

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9

Bowling, Anna Marie. "The impact of a benthic omnivore on the biomagnification of mercury in top-predator fish." Oxford, Ohio : Miami University, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=miami1250890267.

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10

Tomé, Maysa Pereira. "Desenvolvimento e sobrevivência de Euborellia annulipes com dieta vegetal, animal e mista." Universidade Estadual da Paraíba, 2018. http://tede.bc.uepb.edu.br/jspui/handle/tede/3011.

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Submitted by Jean Medeiros (jeanletras@uepb.edu.br) on 2018-04-12T13:21:43Z No. of bitstreams: 1 PDF - Maysa Pereira Tomé.pdf: 11904267 bytes, checksum: b0b5c1332accda7862833abc1ec7b0e8 (MD5)<br>Approved for entry into archive by Secta BC (secta.csu.bc@uepb.edu.br) on 2018-04-23T20:28:05Z (GMT) No. of bitstreams: 1 PDF - Maysa Pereira Tomé.pdf: 11904267 bytes, checksum: b0b5c1332accda7862833abc1ec7b0e8 (MD5)<br>Made available in DSpace on 2018-04-23T20:28:05Z (GMT). No. of bitstreams: 1 PDF - Maysa Pereira Tomé.pdf: 11904267 bytes, checksum: b0b5c1332accda7862833abc1ec7b0e8 (MD5) Previous i

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11

Campos, Pena Patricia. "Ecología trófica y análisis del grado de omnivoría de las tortugas verdes en la costa atlántica occidental = Trophic ecology and analysis of the degree of omnivory of the green turtles on the Western Atlantic Coast." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/668248.

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Los hábitats utilizados por las tortugas marinas durante su desarrollo varían notablemente en cuanto a características ambientales y disponibilidad de alimento. Comprender los factores que determinan la selección del hábitat y de la dieta resulta esencial para comprender la interacción que existe entre dichas especies y sus hábitats. Dicho conocimiento también proporciona datos para adoptar medidas de gestión y conservación destinadas a restaurar y mantener las poblaciones de tortugas marinas y así, su función ecológica en el ecosistema. Las zonas costeras de Brasil, Uruguay y Argentina alberg

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12

Ptacnik, Robert. "Omnivory in planktonic food webs a study on the impact of mixotrophic flagellates and microzooplankton on food web dynamics and productivity." Kiel Inst. für Meereskunde, 2003. http://e-diss.uni-kiel.de/diss_825/d825.pdf.

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13

Ptacnik, Robert [Verfasser]. "Omnivory in planktonic food webs : a study on the impact of mixotrophic flagellates and microzooplankton on food web dynamics and productivity / Institut für Meereskunde Kiel. By Robert Ptacnik." Kiel : Inst. für Meereskunde, 2003. http://d-nb.info/972118225/34.

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14

Reichstein, Birte. "Ontogenetic bottlenecks : effects on intraguild predation systems and ecosystem efficiency." Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-105759.

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Size-dependent differences between individuals in size-structured organisms have fundamental effect on population and community dynamics. Intraguild predation (IGP) is one specifically interesting constellation that often arises when two size-structured populations interact. Ontogenetic bottlenecks that determine population size-structure are affected by both population intrinsic as well as population extrinsic factors, and are therefore context-dependent. Surprisingly, size-structured IGP systems have mainly been investigated theoretically and especially long-term empirical studies are widely

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15

Schiavone, Daniele Cristina. "Macroinvertebrados bentônicos como indicadores da integridade de ecossistemas de água doce costeiros. Estudo de caso: lagoas do Parque das Dunas, Salvador, BA." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/18/18139/tde-02022015-103604/.

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Lagoas costeiras, são corpos de água doce numerosos ao longo da costa brasileira, destacam-se principalmente como habitats para organismos aquáticos. São no entanto acossistemas sujeitos a grandes impactos antrópicos. No presente trabalho foram estudadas quatro lagoas costeiras da Área de Proteção Ambiental Parque das Dunas, em Salvador, Bahia, em dois períodos sazonais, chuvoso e seco, nos quais as lagoas foram comparadas. A comunidade de macroinvertebrados bentônicos foi utilizada como bioindicadora da qualidade ambiental. Dentre os organismos bentônicos, as larvas da família Chironomidae fo

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16

Vasconcelos, Francisco Rivera. "Efeitos da til?pia do Nilo, Oreochromis niloticus, sobre a biomassa planct?nica e a transpar?ncia da ?gua ao longo de um gradiente de enriquecimento por nutrientes." Universidade Federal do Rio Grande do Norte, 2010. http://repositorio.ufrn.br:8080/jspui/handle/123456789/14016.

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Made available in DSpace on 2014-12-17T14:33:04Z (GMT). No. of bitstreams: 1 FranciscoRV_DISSERT.pdf: 943640 bytes, checksum: d6134d4d93c5e755e9cda7290579f131 (MD5) Previous issue date: 2010-07-02<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>The omnivorous filter-feeding fish, Nile tilapia (Oreochromis niloticus), can have negative effects on water quality enhancing the eutrophication process. These effects depend on the nutrient enrichment level in the water. We carried out a mesocosm experiment for five weeks in a tropical man-made lake in Brazil to test ifthe effects

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17

Kiskaddon, Erin Paige. "Feeding Patterns and Trophic Food Web Dynamics of Armases cinereum Across a Mangrove/Upland Ecotone." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6525.

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The feeding ecology of a common saltmarsh crab, Armases cinereum (Armases), was investigated to determine how habitat (mangrove vs. ecotone, natural mangrove vs. modified mangrove fringe) influenced this species’ feeding behavior and trophic ecology in its southwestern Florida, USA, distribution. In the laboratory, Armases’ preference for mangrove material was examined using leaves of three mangrove species (Avicennia germinans, Laguncularia racemosa, and Rhizophora mangle) and leaves of different degradation levels (fresh, senescent, and partially-decomposed). Leaf material from A. germinans

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18

Schmitt, Joseph Daniel. "Feeding Ecology of Invasive Catfishes in Chesapeake Bay Subestuaries." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/83464.

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Blue Catfish Ictalurus furcatus are native to tributaries of the Mississippi River but are now invasive in several Atlantic slope drainages. This includes subestuaries of the Chesapeake Bay, where their feeding ecology and potential impact on native species was largely unknown. We collected stomach contents from 16,110 Blue Catfish at 698 sites in three large subestuaries of the Chesapeake Bay (James, York, Rappahannock rivers). Cumulative prey curves revealed that sample size was sufficient for diet description, though 1,000 – 1500 stomachs were needed per river. Blue Catfish are opportunisti

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19

Menezes, Rosemberg Fernandes de. "?Efeitos da til?pia do Nilo (Oreochromis niloticus) e do enriquecimento por nutrientes sobre a comunidade planct?nica em um lago artificial no semi-?rido brasileiro." Universidade Federal do Rio Grande do Norte, 2008. http://repositorio.ufrn.br:8080/jspui/handle/123456789/12476.

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Made available in DSpace on 2014-12-17T14:01:57Z (GMT). No. of bitstreams: 1 RosembergFM.pdf: 688143 bytes, checksum: b1661c0d65a3b582ed47216926346188 (MD5) Previous issue date: 2008-06-02<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>?The major aim of this study was to test the hypothesis that the introduction of the Nile tilapia (Oreochromis niloticus) and the enrichment with nutrients (N and P) interact synergistically to change the structure of plankton communities, increase phytoplankton biomass and decrease water transparency of a semi-arid tropical reservoir.

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20

Hojun, Rim. "Chemical ecological study on tritrophic interaction networks consisting of omnivores, herbivores and plants." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215347.

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Cardoso, Maria Marcolina Lima. "Efeitos de peixes zooplanct?voros e on?voros sobre a resposta de comunidades planct?nicas ? fertiliza??o por nutrientes." Universidade Federal do Rio Grande do Norte, 2009. http://repositorio.ufrn.br:8080/jspui/handle/123456789/14010.

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Made available in DSpace on 2014-12-17T14:33:02Z (GMT). No. of bitstreams: 1 MariaMLC.pdf: 1068178 bytes, checksum: 2211aebe12426e9f45d52a507df28c0f (MD5) Previous issue date: 2009-05-29<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>The food chain theory predict that presence of omnivory prevent the trophic cascade and could be a strong stabilizing factor over resource and consumer community dynamics, and that the nutrient enrichment destabilize populations dynamics. Most of the freshwater tropical reservoirs are eutrophic, and strategies that seek improve the water quali

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22

Larsson, Christel. "Young vegetarians and omnivores : Dietary habits and other health-related aspects." Doctoral thesis, Umeå universitet, Institutionen för kostvetenskap, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-5.

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In the middle of the 1990s many adolescents became vegetarians. There was concern among adults about whether these new young vegetarians got enough energy and nutrients from their dietary intake. The aim of this thesis was to investigate the prevalence of young vegetarians, the food and lifestyle habits, dietary intake and nutritional status of vegetarian and omnivorous adolescents. The prevalence of adolescents eating a vegetarian school lunch in 124 Swedish secondary schools was investigated by interviewing matrons. Information about prevalence of vegetarians, food and lifestyle habits, of 2

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23

Longrée, Alessa [Verfasser]. "Comparison of fatty acid profiles in vegans and omnivores / Alessa Longrée." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2020. http://d-nb.info/122392730X/34.

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24

Morrow, Kristina Joan. "Modification of Trophic Links between an Omnivore and Macroinfaunal Prey from Sandy Beaches of differing Physical Regimes." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4176.

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Sandy beach ecosystems have been studied worldwide; however, ecological data are sparse for the extensive barrier islands of Florida. Accordingly, I investigated the feeding patterns of the ghost crab (Ocypode quadrata), a dominant omnivore inhabiting beaches along the Floridian coast. Density data was collected for ghost crabs and swash macroinfaunal prey. In addition, I utilized stable isotopes in conjunction with the mixing models IsoSource and SIAR to characterize diets of ghost crabs across three barrier islands in spring and summer 2011. Results showed that ghost crabs at Cayo Costa feed

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25

Bastille-Rousseau, Guillaume. "Stratégies d'approvisionnement d'un omnivore : l'ours noir oriente-t-il sa recherche de nourriture vers les jeunes cervidés?" Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27076/27076.pdf.

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26

Kalling, Therese. "Avspeglas rödrävspopulationen på rådjurspopulationen? : En analys av tre landskap i Sverige." Thesis, Karlstads universitet, Institutionen för miljö- och livsvetenskaper (from 2013), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-77393.

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Osämja mellan människan och rovdjuren har funnits sedan vi slutade jaga och började bruka jorden och bedriva lantbruk. En av de absolut viktigaste faktorerna som bestämmer vart en art förekommer, hur stark en stam är och hur den förändras över tiden, är predation. I svensk historia har både rådjurs (Capreolus capreolus) och rödräven (Vulpes vulpes) båda populationer varit nära nationell utrotning. Syftet med uppsatsen är att ta reda på om räven har någon påverkan på rådjurspopulationen. Detta görs genom att analysera avskjutningsstatistik från viltdata.nu i tre olika län med liknande klimat oc

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27

White, Christine Gifford. "The Effects of Class, Age, Gender and Race on Musical Preferences: An Examination of the Omnivore/Univore Framework." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/34954.

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<p> Using data from the 1982, 1985, 1992, and 1997 Survey of Public Participation in the Arts (SPPA), this thesis tests the effects of class, age, gender and race on the breadth of musical preferences that respondents report to liking. Specifically, the omnivore/univore framework developed by Peterson (1992) is examined. </p><p> It is hypothesized that age and social class are positively related to musical omnivorousness (liking a wide variety of music). That is, older people and people higher in social economic standing will be more omnivorousness in musical preferences. The underlying theo

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Leguina, Ruzzi Adrian Antonio. "Multidimensional facets of cultural distinction in the music domain : context, methods, and meanings." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/multidimensional-facets-of-cultural-distinction-in-the-music-domain-context-methods-and-meanings(731d7382-5a11-4689-a790-96fef6a77e60).html.

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From different traditions, research in the field of sociology of cultural taste and consumption has argued that contemporary societies are symbolically stratified through cultural engagement. These theoretical frameworks differ mainly in their explanations of the mechanisms that shape the relationship between culture and social stratification. Motivated by concepts from Pierre Bourdieu, Richard A. Peterson, and other key scholars, this thesis is focused on addressing the relationship between music consumption and social stratification. Due to its peculiar characteristics, music provides a good

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Albenny, Dimah. "Reducing meat consumption : a mixed methods study investigating attitudes of young adult omnivores." Thesis, Högskolan Kristianstad, Fakulteten för naturvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-21678.

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Background Meat is one of the most nourishing and highly consumed foods, but the controversy around theconsumption of meat products, and the negative effects around the consumption of meatproducts led to increased scholarly attention on the user willingness to alter their meatconsumption. In Sweden, a guideline by the Livsmedelsverket (The Swedish National Food Agency) in 2015 encouraged people to consume less red and processed meat. This was because 72 per cent of men and 42 per cent of women in Sweden have individual consumption levels that exceed the 500 grams per week of red and processed

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Sukovich, Ninél, and Jennifer Backman. "Kan musselextrakt (Mytilus edulis) inducera födosök hos omnivoren ruda, Carassius carassius (Linnaeus, 1758)?" Thesis, Södertörns högskola, Miljövetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-31658.

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Over the last three decades there has been a significant increase in aquaculture production and the demand for farmed fish is predicted to rise further. More fish are being caught to become fishmeal in aquaculture, than for direct human consumption use, while a large number of fish stocks are being depleted. Many popular farmed species are carnivores and thus brought up on a diet consisting of fishmeal and fish oil. However, several studies have shown that several fish species can be brought up on a diet consisting of mussel meal instead of fishmeal. If so, this finding can possibly lead to a

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Brock, Kelcey. "Sport consumption patterns in the Eastern Cape: cricket spectators as sporting univores or omnivores." Thesis, Rhodes University, 2015. http://hdl.handle.net/10962/d1017534.

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Since its inception, consumption behaviour theory has developed to account for the important social aspect that underpins or at least to some extent can be used to explain consumption behaviour. Modern consumption behaviour theory is anthropocentric in nature, with people and societal influence at the forefront of the theory. To date, empirical studies on consumption behaviour of cultural activities (for example, music and arts), entertainment and sport have used Bourdieu’s (1984) omnivore/univore theory to suggest that consumption of leisure activities is bound up in social ties. To date, no

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Robinson, K. A. "Use of floral resources by the lacewing Micromus tasmaniae and its parasitoid Anacharis zealandica, and the consequences for biological control by M. tasmaniae." Diss., Lincoln University, 2009. http://hdl.handle.net/10182/823.

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Arthropod species that have the potential to damage crops are food resources for communities of predators and parasitoids. From an agronomic perspective these species are pests and biocontrol agents respectively, and the relationships between them can be important determinants of crop yield and quality. The impact of biocontrol agents on pest populations may depend on the availability of other food resources in the agroecosystem. A scarcity of such resources may limit biological control and altering agroecosystem management to alleviate this limitation could contribute to pest management. This

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Hildbrand, Stephanie Maria. "Bedeutung des Jod/Selen-Quotienten und des Ferritins für das Auftreten einer Autoimmunthyreoiditis (AIT) bei omnivor, lakto - vegetarisch und vegan sich ernährenden Personen." Diss., Ludwig-Maximilians-Universität München, 2015. http://nbn-resolving.de/urn:nbn:de:bvb:19-181552.

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Haldar, Sumanto. "Influence of habitual diet on markers of chronic disease risk : a study in a population of vegetarians and omnivores." Thesis, University of Ulster, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414331.

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Nathan, Indira. "The dietary intake and growth of vegetarian children (aged 7-11 years) compared with omnivores in North West England." Thesis, Liverpool John Moores University, 1995. http://researchonline.ljmu.ac.uk/5523/.

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During a one year longitudinal study, the dietary intake and growth of 50 vegetarian children aged 7-11 years was compared with that of 50 age-, sex- and race-matched omnivores. Diet was assessed at 6 month intervals using three, 3-day diet diaries and follow-up interviews. Anthropometric measurements (height, weight, mid-arm circumference, biceps and triceps skinfolds) were similarly taken 3 times. Multiple stepwise regression was used to control for non nutritional factors that affect growth. A questionnaire was administered at baseline to all children and their parents, to determine socio-e

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Axman, Olof, and Stellan Sörensen. "Kulturellt kapital & Konsumtion : Betydelsen av ”hur” svenska studenter konsumerar." Thesis, Linnéuniversitetet, Institutionen för samhällsstudier (SS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-80524.

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The thesis makes a contribution to the debate on the relationship between cultural consumption, cultural taste preferences and class. This field is well researched, but there is no consensus on the relationship between these variables. That cultural consumption is patterned by social status in society is one of the most fundamental insights of cultural sociology. Pierre Bourdieu’s Distinction: A social criticism of the taste assessment (1984) is a central work in the field. Over time, however, Bourdieu's vision has come to be questioned by various empirical findings. The questioning comes, amo

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Kleffner, Helen. "Literaturstudie über die Verdaulichkeit von Energie und Nährstoffen bei wilden carni- und omnivoren Säugetieren als Grundlage für Energiewertschätzungen im Futter." Diss., lmu, 2008. http://nbn-resolving.de/urn:nbn:de:bvb:19-94166.

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38

Stawasz, Lydia-Anne. "Vegan and omnivore diets : an examination of dietary intake, body composition, serum lipids, parathyroid and vitamin D hormones, acid-base balance, urinary calcium excretion and bone parameters in pre-menopausal women /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2002. http://uclibs.org/PID/11984.

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Walter, Ella, and Moa Albertsson. "Unga vuxnas attityd till och kunskap om mejeriprodukter och vätbaserade alternativ." Thesis, Umeå universitet, Institutionen för kost- och måltidsvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-181265.

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Bakgrund Det finns många olika motiv till att individer väljer att äta växtbaserat. De främsta motiven är egenhälsan och etiska aspekter i form av djurrätt, men även minskad klimatpåverkan. Den största barriären till att övergå till en mer växtbaserad kosthållning är informationsbrist om kosthållningen. Näringsinnehållet skiljer sig mellan mejeriprodukter och växtbaserade alternativ, vilket kan leda till brister om mejeriprodukter helt eller delvis utesluts ur kosten. Syfte Syftet med studien var att undersöka skillnader i attityd och kunskap om mejeriprodukter kontra växtbaserade alternativ h

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Hildbrand, Stephanie Maria [Verfasser], and Roland [Akademischer Betreuer] Gärtner. "Bedeutung des Jod/Selen-Quotienten und des Ferritins für das Auftreten einer Autoimmunthyreoiditis (AIT) bei omnivor, lakto - vegetarisch und vegan sich ernährenden Personen : eine epidemiologische klinische Querschnittstudie / Stephanie Maria Hildbrand. Betreuer: Roland Gärtner." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2015. http://d-nb.info/107237630X/34.

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Hildbrand, Thomas. "Validität der Abschätzung der Jod- und Selenzufuhr anhand eines Food-Frequency-Tables und der Versorgung mit diesen beiden Spurenelementen ermittelt durch die Jodurie und Plasmaselenwerte bei omnivor, lactovegetarisch und vegan sich ernährenden Personen." Diss., Ludwig-Maximilians-Universität München, 2014. http://nbn-resolving.de/urn:nbn:de:bvb:19-176612.

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Caut, Stéphane. "Invasions biologiques, réactions en chaîne et relations trophiques." Paris 11, 2006. http://www.theses.fr/2006PA112357.

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L’invasion des écosystèmes par les espèces invasives est vue comme l’une des plus importantes sources de perte de la biodiversité. La meilleure réponse à ces effets est presque toujours le contrôle, ou bien lorsque cela est possible l’éradication de tous les individus de la population invasive. Dans beaucoup de cas, l’élimination de l’espèce invasive est suivie par un rapide et spectaculaire rétablissement des populations locales. Cependant, la disparition soudaine de l’espèce invasive peut générer plusieurs déséquilibres, entraînant des dommages similaires ou encore plus importants sur l’écos

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Hildbrand, Thomas [Verfasser], and Olaf [Akademischer Betreuer] Adam. "Validität der Abschätzung der Jod- und Selenzufuhr anhand eines Food-Frequency-Tables und der Versorgung mit diesen beiden Spurenelementen ermittelt durch die Jodurie und Plasmaselenwerte bei omnivor, lactovegetarisch und vegan sich ernährenden Personen / Thomas Hildbrand. Betreuer: Olaf Adam." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2014. http://d-nb.info/1063875048/34.

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Nordi, Wiolene Montanari. "Desenvolvimento dos tecidos entérico, hepático e muscular de juvenis de pacu (Piaractus mesopotamicus, Holmberg 1887) e dourado (Salminus brasiliensis, Cuvier 1816) alimentados com dieta contendo colostro bovino liofilizado." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/11/11139/tde-04022015-110705/.

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O fornecimento de colostro bovino liofilizado (CBL), fonte alternativa de proteína, foi avaliado como um ingrediente inovador na nutrição de peixes. A influência desta secreção láctea foi estudada sobre o desenvolvimento dos tecidos entérico, hepático e muscular de pacu (Piaractus mesopotamicus) e dourado (Salminus brasiliensis) juvenis, utilizando-se análises da concentração sérica de IGF-I, o estudo da estrutura morfológica e atividade enzimática no intestino e, os indicadores de atividade celular nos tecidos entérico, hepático e muscular. Os pacus (8,5 ± 0,7g; 7,7 ± 0,3cm) e dourados (13,3

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Kong, Heng. "Variations spatio-temporelles de la structure taxonomique et la compétition alimentaire des poissons du lac Tonlé Sap, Cambodge." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30122/document.

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Le lac de Tonlé Sap (TSL), Cambodge, est un écosystème lac-rivière de forêt alluviale au régime d'écoulement alternatif. Le lac est un déversoir lors de l'inondation saisonnière du Mékong et sert de réservoir en période de basses eaux. La superficie du lac pendant la saison sèche (février à mai), est d'environ 2 700 km2 pour une profondeur d'environ 1 mètre. Cette superficie est pratiquement multipliée par six quand arrive la saison des pluies, pour atteindre près de 16 000 km2 et une profondeur de 9 mètres, noyant rizières et forêts. C'est le plus grand lac d'eau douce d'Asie du Sud-Est. C'es

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Voigt, Dagmar. "Untersuchungen zur Morphologie, Biologie und Ökologie der räuberischen Weichwanze Dicyphus errans Wolff (Heteroptera, Miridae, Bryocorinae)." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2006. http://nbn-resolving.de/urn:nbn:de:swb:14-1138036391273-82564.

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Die paläarktische omnivore Weichwanze Dicyphus errans Wolff (Heteroptera, Miridae, Bryocorinae) zeichnet sich durch ein ausgesprochen breites Spektrum an besetzten Wirtspflanzen und konsumierten Beutetieren aus. Über 150 von D. errans akzeptierte Pflanzenarten sind erstmalig belegt worden. Der erfolgreiche Verzehr von 15 Beute-tierarten wurde quantitativ nachgewiesen. Eine weitere Besonderheit der Wanze besteht in der Präferenz für glandulär behaarte Pflanzen. Die Weichwanze besetzt somit von vielen anderen Insekten gemiedene Nischen. Untersuchungen im Botanischen Garten der Technischen Univer

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Voigt, Dagmar. "Untersuchungen zur Morphologie, Biologie und Ökologie der räuberischen Weichwanze Dicyphus errans Wolff (Heteroptera, Miridae, Bryocorinae)." Doctoral thesis, Technische Universität Dresden, 2005. https://tud.qucosa.de/id/qucosa%3A24628.

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Die paläarktische omnivore Weichwanze Dicyphus errans Wolff (Heteroptera, Miridae, Bryocorinae) zeichnet sich durch ein ausgesprochen breites Spektrum an besetzten Wirtspflanzen und konsumierten Beutetieren aus. Über 150 von D. errans akzeptierte Pflanzenarten sind erstmalig belegt worden. Der erfolgreiche Verzehr von 15 Beute-tierarten wurde quantitativ nachgewiesen. Eine weitere Besonderheit der Wanze besteht in der Präferenz für glandulär behaarte Pflanzen. Die Weichwanze besetzt somit von vielen anderen Insekten gemiedene Nischen. Untersuchungen im Botanischen Garten der Technischen Univer

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Stevens, Catherine Joy. "Lipid-based assessments of omnivory in Arctic copepods /." 2003.

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Shaner, Pei-Jen Lee. "The ecology of omnivory in the white-footed mouse Peromyscus leucopus /." 2005. http://wwwlib.umi.com/dissertations/fullcit/3189321.

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Fung, Simon Ronald. "Modelling Intraguild Predation with Adaptive Behaviour." Thesis, 2008. http://hdl.handle.net/1807/17168.

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The thesis examines the dynamics of intraguild predation models incorporating adaptive behaviour. The top predator varies its relative consumption of the intermediate consumer and the basal resource. The consumer alters its activity level in response to the threat of predation. Incorporating these adaptive behaviours facilitated three species coexistence, but restricted omnivory by promoting the formation of three species food chains. Model modifications which promoted omnivory also tended to reduce three species coexistence. It is predicted that omnivory should be most common when the in

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