Generalized estimating equations to evaluate the dependence of lifetime in confined africanized bees

Detalhes bibliográficos
Autor(a) principal: Brighenti, Carla Guimarães
Data de Publicação: 2016
Outros Autores: Miranda, Yola Serpa, Resende, Mariana, Cirillo, Marcelo Angelo, Brighenti, Deodoro Magno
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/32714
Resumo: Research with honeybee needs experimentation in cages. In laboratory bioassays to assess the lifetime of Apis mellifera, each sampling unit contained a group of bees confined in a cage. Since current is a longitudinal analysis to assess the effect of time dependence on the survival of bees fed on different diets, generalized estimating equations applied to the logit model were used to assess the viability of incorporating correlation structures that related the survival of bees observed in each cage over time, so that the mortality of a given number of bees might influence the mortality of the others. Results showed that there was time dependence between the observations of bees inside the cages, and the working correlation matrix adjusted by longitudinal analysis was ‘Non-stationary-M-dependent’ in which the number of periods of dependence must be specified. Correlations are not the same for all observations of all periods. The solution with granulated sugar and the solution with granulated sugar enriched with lemon juice proved to have the lowest level of mortality during the assessed periods. Assay showed that bees tended to die during daytime.
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spelling Generalized estimating equations to evaluate the dependence of lifetime in confined africanized beesEquações de estimação generalizada para avaliação da dependência do tempo de vida entre abelhas africanizadas confinadasApisLongevityLogitLongevidadeResearch with honeybee needs experimentation in cages. In laboratory bioassays to assess the lifetime of Apis mellifera, each sampling unit contained a group of bees confined in a cage. Since current is a longitudinal analysis to assess the effect of time dependence on the survival of bees fed on different diets, generalized estimating equations applied to the logit model were used to assess the viability of incorporating correlation structures that related the survival of bees observed in each cage over time, so that the mortality of a given number of bees might influence the mortality of the others. Results showed that there was time dependence between the observations of bees inside the cages, and the working correlation matrix adjusted by longitudinal analysis was ‘Non-stationary-M-dependent’ in which the number of periods of dependence must be specified. Correlations are not the same for all observations of all periods. The solution with granulated sugar and the solution with granulated sugar enriched with lemon juice proved to have the lowest level of mortality during the assessed periods. Assay showed that bees tended to die during daytime.Os bioensaios laboratoriais para avaliar o tempo de vida de Apis mellifera têm algumas particularidades, pois cada unidade amostral contém um grupo de abelhas confinadas em uma gaiola. O presente estudo teve como objetivo realizar uma análise longitudinal para avaliar o efeito da dependência do tempo de vida entre abelhas confinadas alimentadas com diferentes dietas. Foi utilizado o método de estimação de equações generalizadas aplicadas ao modelo logit para avaliar a viabilidade de incorporar estruturas de correlação ao longo do tempo, à sobrevivência de abelhas observadas em cada gaiola, de modo a verificar como a mortalidade de um determinado número de abelhas pode influenciar a mortalidade das outras. Concluiu-se que há dependência do tempo entre as mortalidades de abelhas no interior das gaiolas, e a matriz de correlação de trabalho ajustada em análise longitudinal foi ‘Não-estacionária-M-dependente’, em que se deve especificar o número de períodos de dependência. Assim, as correlações não são as mesmas para todas as observações. Dentre as dietas testadas, a solução composta por açúcar granulado e a composta por açúcar granulado adicionado com suco de limão mostraram o menor nível de mortalidade durante os períodos avaliados. Observou-se também que as abelhas tendem a morrer durante o dia.Universidade Estadual de Maringá2019-02-04T11:14:55Z2019-02-04T11:14:55Z2016info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfBRIGHENTI, C. G. et al. Generalized estimating equations to evaluate the dependence of lifetime in confined africanized bees. Acta Scientiarum-Technology, Maringá, v. 38, n. 1, p. 99-105, Jan./Mar. 2016.http://repositorio.ufla.br/jspui/handle/1/32714Acta Scientiarum-Technologyreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessBrighenti, Carla GuimarãesMiranda, Yola SerpaResende, MarianaCirillo, Marcelo AngeloBrighenti, Deodoro Magnoeng2019-02-04T11:14:55Zoai:localhost:1/32714Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-02-04T11:14:55Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Generalized estimating equations to evaluate the dependence of lifetime in confined africanized bees
Equações de estimação generalizada para avaliação da dependência do tempo de vida entre abelhas africanizadas confinadas
title Generalized estimating equations to evaluate the dependence of lifetime in confined africanized bees
spellingShingle Generalized estimating equations to evaluate the dependence of lifetime in confined africanized bees
Brighenti, Carla Guimarães
Apis
Longevity
Logit
Longevidade
title_short Generalized estimating equations to evaluate the dependence of lifetime in confined africanized bees
title_full Generalized estimating equations to evaluate the dependence of lifetime in confined africanized bees
title_fullStr Generalized estimating equations to evaluate the dependence of lifetime in confined africanized bees
title_full_unstemmed Generalized estimating equations to evaluate the dependence of lifetime in confined africanized bees
title_sort Generalized estimating equations to evaluate the dependence of lifetime in confined africanized bees
author Brighenti, Carla Guimarães
author_facet Brighenti, Carla Guimarães
Miranda, Yola Serpa
Resende, Mariana
Cirillo, Marcelo Angelo
Brighenti, Deodoro Magno
author_role author
author2 Miranda, Yola Serpa
Resende, Mariana
Cirillo, Marcelo Angelo
Brighenti, Deodoro Magno
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Brighenti, Carla Guimarães
Miranda, Yola Serpa
Resende, Mariana
Cirillo, Marcelo Angelo
Brighenti, Deodoro Magno
dc.subject.por.fl_str_mv Apis
Longevity
Logit
Longevidade
topic Apis
Longevity
Logit
Longevidade
description Research with honeybee needs experimentation in cages. In laboratory bioassays to assess the lifetime of Apis mellifera, each sampling unit contained a group of bees confined in a cage. Since current is a longitudinal analysis to assess the effect of time dependence on the survival of bees fed on different diets, generalized estimating equations applied to the logit model were used to assess the viability of incorporating correlation structures that related the survival of bees observed in each cage over time, so that the mortality of a given number of bees might influence the mortality of the others. Results showed that there was time dependence between the observations of bees inside the cages, and the working correlation matrix adjusted by longitudinal analysis was ‘Non-stationary-M-dependent’ in which the number of periods of dependence must be specified. Correlations are not the same for all observations of all periods. The solution with granulated sugar and the solution with granulated sugar enriched with lemon juice proved to have the lowest level of mortality during the assessed periods. Assay showed that bees tended to die during daytime.
publishDate 2016
dc.date.none.fl_str_mv 2016
2019-02-04T11:14:55Z
2019-02-04T11:14:55Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv BRIGHENTI, C. G. et al. Generalized estimating equations to evaluate the dependence of lifetime in confined africanized bees. Acta Scientiarum-Technology, Maringá, v. 38, n. 1, p. 99-105, Jan./Mar. 2016.
http://repositorio.ufla.br/jspui/handle/1/32714
identifier_str_mv BRIGHENTI, C. G. et al. Generalized estimating equations to evaluate the dependence of lifetime in confined africanized bees. Acta Scientiarum-Technology, Maringá, v. 38, n. 1, p. 99-105, Jan./Mar. 2016.
url http://repositorio.ufla.br/jspui/handle/1/32714
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual de Maringá
publisher.none.fl_str_mv Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum-Technology
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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