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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: |
08/02/2012 |
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Data da última atualização: |
11/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GRÜTER, C.; MENEZES, C.; IMPERATRIZ-FONSECA, V. L.; RATNIEKS, F. L. W. |
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Afiliação: |
CHRISTOPH GRÜTER, UNIVERSITY OF SUSSEX; CRISTIANO MENEZES, CPATU; VERA L. IMPERATRIZ-FONSECA, UNIVERSIDADE FEDERAL RURAL DO SEMIÁRIDO; FRANCIS L. W. RATNIEKS, UNIVERSITY OF SUSSEX. |
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Título: |
A morphologically specialized soldier caste improves colony defense in a neotropical eusocial bee. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
PNAS, v. 109, n. 4, p. 1182-11986, Jan. 2012. |
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DOI: |
10.1073/pnas.1113398109 |
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Idioma: |
Inglês |
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Conteúdo: |
Division of labor among workers is common in insect societies and is thought to be important in their ecological success. In most species, division of labor is based on age (temporal castes), but workers in some ants and termites show morphological specialization for particular tasks (physical castes). Large-headed soldier ants and termites are well-known examples of this specialization. However, until now there has been no equivalent example of physical worker subcastes in social bees or wasps. Here we provide evidence for a physical soldier subcaste in a bee. In the neotropical stingless bee Tetragonisca angustula, nest defense is performed by two groups of guards, one hovering near the nest entrance and the other standing on the wax entrance tube. We show that both types of guards are 30% heavier than foragers and of different shape; foragers have relatively larger heads, whereas guards have larger legs. Low variation within each subcaste results in negligible size overlap between guards and foragers, further indicating that they are distinct physical castes. In addition, workers that remove garbage from the nest are of intermediate size, suggesting that they might represent another unrecognized caste. Guards or soldiers are reared in low but sufficient numbers (1?2% of emerging workers), considering that <1% usually perform this task. When challenged by the obligate robber bee Lestrimelitta limao, an important natural enemy, larger workers were able to fight for longer before being defeated by the much larger robber. This discovery opens up opportunities for the comparative study of physical castes in social insects, including the question of why soldiers appear to be so much rarer in bees than in ants or termites. MenosDivision of labor among workers is common in insect societies and is thought to be important in their ecological success. In most species, division of labor is based on age (temporal castes), but workers in some ants and termites show morphological specialization for particular tasks (physical castes). Large-headed soldier ants and termites are well-known examples of this specialization. However, until now there has been no equivalent example of physical worker subcastes in social bees or wasps. Here we provide evidence for a physical soldier subcaste in a bee. In the neotropical stingless bee Tetragonisca angustula, nest defense is performed by two groups of guards, one hovering near the nest entrance and the other standing on the wax entrance tube. We show that both types of guards are 30% heavier than foragers and of different shape; foragers have relatively larger heads, whereas guards have larger legs. Low variation within each subcaste results in negligible size overlap between guards and foragers, further indicating that they are distinct physical castes. In addition, workers that remove garbage from the nest are of intermediate size, suggesting that they might represent another unrecognized caste. Guards or soldiers are reared in low but sufficient numbers (1?2% of emerging workers), considering that <1% usually perform this task. When challenged by the obligate robber bee Lestrimelitta limao, an important natural enemy, larger workers were able to fight for longer b... Mostrar Tudo |
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Palavras-Chave: |
Abelha-sem-ferrão; Defesa; Meliponicultura. |
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Thesagro: |
Colônia. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02403naa a2200217 a 4500
001 1914703
005 2022-11-11
008 2012 bl uuuu u00u1 u #d
024 7 $a10.1073/pnas.1113398109$2DOI
100 1 $aGRÜTER, C.
245 $aA morphologically specialized soldier caste improves colony defense in a neotropical eusocial bee.$h[electronic resource]
260 $c2012
520 $aDivision of labor among workers is common in insect societies and is thought to be important in their ecological success. In most species, division of labor is based on age (temporal castes), but workers in some ants and termites show morphological specialization for particular tasks (physical castes). Large-headed soldier ants and termites are well-known examples of this specialization. However, until now there has been no equivalent example of physical worker subcastes in social bees or wasps. Here we provide evidence for a physical soldier subcaste in a bee. In the neotropical stingless bee Tetragonisca angustula, nest defense is performed by two groups of guards, one hovering near the nest entrance and the other standing on the wax entrance tube. We show that both types of guards are 30% heavier than foragers and of different shape; foragers have relatively larger heads, whereas guards have larger legs. Low variation within each subcaste results in negligible size overlap between guards and foragers, further indicating that they are distinct physical castes. In addition, workers that remove garbage from the nest are of intermediate size, suggesting that they might represent another unrecognized caste. Guards or soldiers are reared in low but sufficient numbers (1?2% of emerging workers), considering that <1% usually perform this task. When challenged by the obligate robber bee Lestrimelitta limao, an important natural enemy, larger workers were able to fight for longer before being defeated by the much larger robber. This discovery opens up opportunities for the comparative study of physical castes in social insects, including the question of why soldiers appear to be so much rarer in bees than in ants or termites.
650 $aColônia
653 $aAbelha-sem-ferrão
653 $aDefesa
653 $aMeliponicultura
700 1 $aMENEZES, C.
700 1 $aIMPERATRIZ-FONSECA, V. L.
700 1 $aRATNIEKS, F. L. W.
773 $tPNAS$gv. 109, n. 4, p. 1182-11986, Jan. 2012.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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| Registros recuperados : 196 | |
| 1. |  | STAUT, L. A. Adubação foliar na cultura do algodoeiro. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 31., 2007, Gramado. Conquistas e desafios da ciência do solo brasileira: livro de resumos. Gramado: SBCS: UFRGS Solos, 2007. p. 308| Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 2. | | STAUT, L. A. Adubação foliar na cultura da soja. In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 28., 2006, Uberaba. Resumos. Londrina: Embrapa Soja: Fundação Meridional: Fundação Triângulo, 2006. p. 446 (Embrapa Soja. Documentos, 272). Organizado por: Odilon Ferreira Saraiva, regina Maria V. B. Campos Leite, Janete Lasso Ortiz.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 3. | | STAUT, L. A. Adubação foliar com macro e micronutrientes na cultura da soja. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 27.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 11.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 9.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 6., 2006, Bonito, MS. A busca das raízes: anais. Dourados: Embrapa Agropecuária Oeste, 2006. (Embrapa Agropecuária Oeste. Documentos, 82). 1 CD-ROM. FERTBIO.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 9. | | STAUT, L. A. Nitrogênio na safrinha. Cultivar, Pelotas, Ano 9, n. 95, p. 22-23, abr. 2007.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - C |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 10. | | STAUT, L. A. Resposta agronômica e econômica da cultura da mandioca a doses de composto orgânico. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 30.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 14.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 12.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 9.; SIMPÓSIO SOBRE SELÊNIO NO BRASIL, 1., 2012, Maceió. A responsabilidade socioambiental da pesquisa agrícola: anais. Viçosa: SBCS, 2012. Fertbio. Organizado por Leila Cruz da Silva, Gilson Moura Filho, Adriano Barboza Moura, Abel Washington de Albuquerque. 4 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| Registros recuperados : 196 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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