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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
25/06/2013 |
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Data da última atualização: |
07/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KÄRCHER, M. H.; MENEZES, C.; ALVES, D. A.; BEVERIDGE, O. S.; IMPERATRIZ-FONSECA, V. L.; RATNIEKS, F. L. W. |
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Afiliação: |
Martin H. Kärcher, University of Sheffield / University of Sussex; CRISTIANO MENEZES, CPATU; DENISE A. ALVES, USP; Oliver S. Beveridge, University of Sheffield; VERA LUCIA IMPERATRIZ-FONSECA, USP / Universidade Federal Rural do Semiárido; Francis L. W. Ratnieks, University of Sheffield / University of Sussex. |
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Título: |
Factors influencing survival duration and choice of virgin queens in the stingless bee Melipona quadrifasciata. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Naturwissenschaften, v. 100, n. 6, p. 571-580, Jun. 2013. |
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DOI: |
10.1007/s00114-013-1053-2 |
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Idioma: |
Inglês |
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Conteúdo: |
In Melipona quadrifasciata, about 10 % of the females develop into queens, almost all of which are killed. Occasionally, a new queen replaces or supersedes the mother queen or heads a new colony. We investigated virgin queen fate in queenright and queenless colonies to determine the effects of queen behaviour, body mass, nestmate or non-nestmate status, queenright or queenless colony status, and, when queenless, the effect of the time a colony had been queenless, on survival duration and acceptance. None of 220 virgin queens observed in four observation hives ever attacked another virgin queen nor did any of 88 virgin queens introduced into queenright colonies ever attack the resident queen. A new queen was only accepted in a queenless colony. Factors increasing survival duration and acceptance of virgin queens were to emerge from its cell at 2 h of queenlessness, to hide, and to avoid fights with workers. In this way, a virgin queen was more likely to be available when a colony chooses a new queen, 24-48 h after resident queen removal. Running, walking or resting, antennating or trophallaxis, played little or no role, as did the factors body mass or nestmate. ?Queen choice? took about 2 h during which time other virgin queens were still being killed by workers. During this agitated process, the bees congregated around the new queen. She inflated her abdomen and some of the workers deposited a substance on internal nest surfaces including the glass lid of the observation hive. MenosIn Melipona quadrifasciata, about 10 % of the females develop into queens, almost all of which are killed. Occasionally, a new queen replaces or supersedes the mother queen or heads a new colony. We investigated virgin queen fate in queenright and queenless colonies to determine the effects of queen behaviour, body mass, nestmate or non-nestmate status, queenright or queenless colony status, and, when queenless, the effect of the time a colony had been queenless, on survival duration and acceptance. None of 220 virgin queens observed in four observation hives ever attacked another virgin queen nor did any of 88 virgin queens introduced into queenright colonies ever attack the resident queen. A new queen was only accepted in a queenless colony. Factors increasing survival duration and acceptance of virgin queens were to emerge from its cell at 2 h of queenlessness, to hide, and to avoid fights with workers. In this way, a virgin queen was more likely to be available when a colony chooses a new queen, 24-48 h after resident queen removal. Running, walking or resting, antennating or trophallaxis, played little or no role, as did the factors body mass or nestmate. ?Queen choice? took about 2 h during which time other virgin queens were still being killed by workers. During this agitated process, the bees congregated around the new queen. She inflated her abdomen and some of the workers deposited a substance on internal nest surfaces including the glass lid of the observation hiv... Mostrar Tudo |
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Palavras-Chave: |
Meliponicultura. |
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Thesagro: |
Abelha. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02187naa a2200217 a 4500
001 1960560
005 2022-11-07
008 2013 bl uuuu u00u1 u #d
024 7 $a10.1007/s00114-013-1053-2$2DOI
100 1 $aKÄRCHER, M. H.
245 $aFactors influencing survival duration and choice of virgin queens in the stingless bee Melipona quadrifasciata.$h[electronic resource]
260 $c2013
520 $aIn Melipona quadrifasciata, about 10 % of the females develop into queens, almost all of which are killed. Occasionally, a new queen replaces or supersedes the mother queen or heads a new colony. We investigated virgin queen fate in queenright and queenless colonies to determine the effects of queen behaviour, body mass, nestmate or non-nestmate status, queenright or queenless colony status, and, when queenless, the effect of the time a colony had been queenless, on survival duration and acceptance. None of 220 virgin queens observed in four observation hives ever attacked another virgin queen nor did any of 88 virgin queens introduced into queenright colonies ever attack the resident queen. A new queen was only accepted in a queenless colony. Factors increasing survival duration and acceptance of virgin queens were to emerge from its cell at 2 h of queenlessness, to hide, and to avoid fights with workers. In this way, a virgin queen was more likely to be available when a colony chooses a new queen, 24-48 h after resident queen removal. Running, walking or resting, antennating or trophallaxis, played little or no role, as did the factors body mass or nestmate. ?Queen choice? took about 2 h during which time other virgin queens were still being killed by workers. During this agitated process, the bees congregated around the new queen. She inflated her abdomen and some of the workers deposited a substance on internal nest surfaces including the glass lid of the observation hive.
650 $aAbelha
653 $aMeliponicultura
700 1 $aMENEZES, C.
700 1 $aALVES, D. A.
700 1 $aBEVERIDGE, O. S.
700 1 $aIMPERATRIZ-FONSECA, V. L.
700 1 $aRATNIEKS, F. L. W.
773 $tNaturwissenschaften$gv. 100, n. 6, p. 571-580, Jun. 2013.
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Embrapa Amazônia Oriental (CPATU) |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
27/10/2017 |
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Data da última atualização: |
27/10/2017 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CHINI, A.; HOLLAS, C. E.; ANTES, F. G.; PEREIRA NETO, S.; DIAS, J. R.; KUNZ, A. |
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Afiliação: |
ANGELICA CHINI, UNIOESTE; CAMILA ESTER HOLLAS, UNIOESTE; FABIANE GOLDSCHMIDT ANTES, CNPSA; UNIOESTE; JESSICA ROSA DIAS, UNC/Concórdia; AIRTON KUNZ, CNPSA. |
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Título: |
Study of nitrogen consumption by nitrification process. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: SIMPÓSIO INTERNACIONAL SOBRE GERENCIAMENTO DE RESÍDUOS AGROPECUÁRIOS E AGROINDUSTRIAIS, 5., 2017, Foz do Iguaçu, Anais... Concórdia: Sbera: Embrapa Suínos e Aves, 2017. SIGERA. p. 15-18. |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT: Biological processes are being applied to nitrogen removal from wastewater. The conventional process is based on nitrification followed by denitrification. In nitrification process the ammoniacal nitrogen is oxidized to nitrate and it is strongly influenced by availability of dissolved oxygen. In this context, kinetics studies are an alternative used to evaluate the microorganisms activity by defining substrate (NH3-N) consumption and the influence of others parameters, like oxygen and substrate. The present study aims to evaluate the ammonium consumption rate by nitrification process at three different ammonia concentrations (100, 200 and 300 mg NH3-N L -1 ) at air flow rates of 20, 30, 50, 100, 200 and 500 mLair min−1 L −1 reactor. The kinetics were made by batch tests in an EGSB reactor at temperature of 25ºC for 2h30min. It was visualized that with 100 and 200 mg N-NH3 L - ¹ the substrate concentration was fully consumed. However, at the substrate concentration of 300 mg NH3-N L - ¹ an increase of substrate consumption was observed but ammonia was not entirely consumed. Furthermore, for the three initial ammonia concentrations, the behavior of substrate consumption was similar in function of air flow rate. Additionally, it was possible to conclude that as the supply of oxygen increased, the nitrogen ammoniacal consumption rate also increased. |
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Thesagro: |
Águas residuais; Nitrificação. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/165656/1/final8596.pdf
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Marc: |
LEADER 02081nam a2200193 a 4500
001 2078323
005 2017-10-27
008 2017 bl uuuu u00u1 u #d
100 1 $aCHINI, A.
245 $aStudy of nitrogen consumption by nitrification process.$h[electronic resource]
260 $aIn: SIMPÓSIO INTERNACIONAL SOBRE GERENCIAMENTO DE RESÍDUOS AGROPECUÁRIOS E AGROINDUSTRIAIS, 5., 2017, Foz do Iguaçu, Anais... Concórdia: Sbera: Embrapa Suínos e Aves, 2017. SIGERA. p. 15-18.$c2017
520 $aABSTRACT: Biological processes are being applied to nitrogen removal from wastewater. The conventional process is based on nitrification followed by denitrification. In nitrification process the ammoniacal nitrogen is oxidized to nitrate and it is strongly influenced by availability of dissolved oxygen. In this context, kinetics studies are an alternative used to evaluate the microorganisms activity by defining substrate (NH3-N) consumption and the influence of others parameters, like oxygen and substrate. The present study aims to evaluate the ammonium consumption rate by nitrification process at three different ammonia concentrations (100, 200 and 300 mg NH3-N L -1 ) at air flow rates of 20, 30, 50, 100, 200 and 500 mLair min−1 L −1 reactor. The kinetics were made by batch tests in an EGSB reactor at temperature of 25ºC for 2h30min. It was visualized that with 100 and 200 mg N-NH3 L - ¹ the substrate concentration was fully consumed. However, at the substrate concentration of 300 mg NH3-N L - ¹ an increase of substrate consumption was observed but ammonia was not entirely consumed. Furthermore, for the three initial ammonia concentrations, the behavior of substrate consumption was similar in function of air flow rate. Additionally, it was possible to conclude that as the supply of oxygen increased, the nitrogen ammoniacal consumption rate also increased.
650 $aÁguas residuais
650 $aNitrificação
700 1 $aHOLLAS, C. E.
700 1 $aANTES, F. G.
700 1 $aPEREIRA NETO, S.
700 1 $aDIAS, J. R.
700 1 $aKUNZ, A.
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