Dominance Hierarchy
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. ANALYSIS OF MIXED INTEGER PROGRAMMING FORMULATIONS FOR SINGLE MACHINE SCHEDULING PROBLEMS WITH SEQUENCE DEPENDENT SETUP TIMES AND RELEASE DATES
ABSTRACT The scheduling of jobs over a single machine with sequence dependent setups is a classical problem setting that appears in many practical applications in production planning and logistics. In this work, we analyze six mixed-integer formulation paradigms for this classical context considering release dates and two objective functions: the total weigh
Pesqui. Oper.. Publicado em: 09/05/2019
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2. Demography of the endangered tree species Ocotea porosa (Lauraceae) along a gradient of forest disturbance in southern Brazil
Ocotea porosa (Ness) Barroso (Lauraceae), a typical tree of the southern Atlantic Forest in Brazil, was heavily exploited for timber in the last century. With the aim of examining the status of the remaining populations, we surveyed five forest fragments in the state of Paraná, in southern Brazil, and evaluated whether disturbances caused by selective loggi
Acta Bot. Bras.. Publicado em: 2014-12
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3. The effect of increased light intensity on the aggressive behavior of the Nile tilapia, Oreochromis niloticus (Teleostei: Cichlidae)
Animals show behavioral and physiological changes that emerge in response to environmental perturbations (i.e., emergency life-history stages). In this study, we investigate the effects of light intensity on aggressive encounters and social stability in groups of adult male Nile tilapia, Oreochromis niloticus (Linnaeus, 1758). The study compared the behavior
Zoologia (Curitiba). Publicado em: 2013-04
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4. Social and reproductive physiology and behavior of the Neotropical cichlid fish Cichlasoma dimerus under laboratory conditions
In this work we describe for the first time the social and reproductive behavior of the Neotropical fish Cichlasoma dimerus (Heckel, 1840) [Perciformes: Cichlidae], endemic to the Paraná River basin, using a comprehensive-integral approach, including morphological and physiological features. This substrate breeding fish has biparental care of the fry and pr
Neotropical Ichthyology. Publicado em: 22/07/2011
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5. IMPLICAÇÕES DO MUTUALISMO TROFOBIÓTICO COM HEMÍPTEROS NA ATIVIDADE DE FORRAGEIO DE FORMIGAS ARBORÍCOLAS EM UM ECOSSISTEMA ARBÓREO MONTANO / IMPLICAÇÕES DO MUTUALISMO TROFOBIÓTICO COM HEMÍPTEROS NA ATIVIDADE DE FORRAGEIO DE FORMIGAS ARBORÍCOLAS EM UM ECOSSISTEMA ARBÓREO MONTANO
This study investigates a new case of trophobiotic interaction that occurs between ants and the herbivore Calloconophora pugionata, specialist of Myrcia obovata. In the first chapter we describe the trophobioses and analyze the benefits of the tending ants for treehopper survival and fecundity. Using an exclusion experiment we show that the absence of tendin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/09/2010
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6. DESENVOLVIMENTO PÓS-EMBRIONÁRIO, OOFAGIA E RELAÇÃO ENTRE AS INTERAÇÕES DE DOMINÂNCIA E A ATIVIDADE FORRAGEADORA NA VESPA SOCIAL Mischocyttarus cassununga (VON IHERING, 1903) (HYMENOPTERA, VESPIDAE)
A vespa social Mischocyttarus cassununga ocorre no sudeste do Brasil, Bahia e Santa Catarina e apresenta fundação do tipo independente por meio de uma fêmea inseminada ou por uma associação destas fêmeas, sendo o papel social dos indivíduos determinado por meio de interações de dominância. O objetivo deste trabalho foi caracterizar o desenvolviment
Publicado em: 2010
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7. Estudo e modelagem das dinâmicas estruturais de assembléias de formigas tropicais em diferentes escalas ecológicas
The ecological theory is built on models that can explain the relationships between organisms and their environment. However, if this is a science that integrates knowledge and benefited from interdisciplinary approaches due to the enormous complexity observed in ecosystems. In this context, the use of mathematical tools has been extremely important for the
Publicado em: 2009
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8. Variação hormonal em função do grupo social no tiziu (Volatinia jacarina, Aves: Emberizidae)
A testosterona é o hormônio que está ligado diretamente com a reprodução dos machos em praticamente todas as espécies de vertebrados. Os principais efeitos desse hormônio no organismo são a maturação dos testículos e espermatogênese. Alguns efeitos no comportamento também já foram descritos, tais como aumentar a agressividade, o tempo de guarda
Publicado em: 2009
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9. Influência de fatores individuais e sociais sobre as respostas endócrina e comportamental de callithrix jacchus a desafios ambientais físicos e sociais
Regarding the growing number of human beings with physical and mental pathologies associated to different stressor agents, attempts are being made to validate animal models with a close phylogenetic resemblance to man, to study stress response. Callithrix jacchus has been widely used in biomedical research, including on stress, but there is scarce informatio
Publicado em: 2009
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10. Hierarquia de dominância durante a obtenção de Alimento em cebus apella e cebus libidinosus em Cativeiro
The analysis of the index of hierarchy and structural models of the formation of groups allowed to establish the hierarchical position of members of two groups of the genus Cebus. By the analyses of the hierarchical positions and the application of tests to obtain a food resource (TORA), we know the difference between these groups and groups in the wild. The
Publicado em: 2008
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11. Interações sociais em grupos de macacos-prego (Cebus libidinosus) no Parque Nacional de Brasília
Primate social behaviour is influenced by different kinds of competition. Food competition is stronger among females because food intake limits female reproductive success. Thus, socio-ecological models are based mainly on food competition among females. In Cebus, females are philopatric and develop discriminative affiliative bonds and strong dominance relat
Publicado em: 2007
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12. Fatores de decisão da adoção do gás natural na geração de energia elétrica em pequena escala em postos de combustíveis: um estudo de anális de decusão usando o processo de hierarquia analítica AHP / In this Master Thesis is applied the method of Process of Analytical Hierarchy (Analytical Hierarchy Process - AHP) in the analysis of decision on adoption of generation in small scale of electric energy the Natural Gas
A modeling of criterias and alternatives is through and applied a questionnaire based on method AHP to proprietors of gas stations. The considered alternatives had been the maintenance of the current state with electric energy of the deliverer and the generation in small scale based on the natural gas. The used criteria had been Cost of the Investment, Final
Publicado em: 2007