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29 results for “Melipona”
Figuras 8–13 in Melipona beecheii Bennett (Hymenoptera: Apidae): origen, estudios y meliponicultura en Cuba
Figuras 8–13. Colmenas manejadas de Melipona beecheii. 8–9) Troncos huecos, Catalina de Güines y Sierra La Güira, Pinar del Río, respectivamente. 10) Cajas rusticas, Las Terrazas, Pinar del Río. 11) Caja racional UTOB, Ciénaga de Zapata. 12–13) Caja racional modelo modificado Fernando Oliveira, San Nicolás de Bari, Mayabeque. Fotos: 8, 10, 12, 13, W. Lóriga; 9, J. Lazcano; 11, K. Mizota.
Figure 10 in Pollen niche of Melipona crinita Moure & Kerr, 1950 (Hymenoptera: Apidae) in a meliponary of Acre, Brazil: a study case
Figure 10. Blue dots - families visited by Melipona in the Amazon, between 1977 and 2020; red dots - families identified in this study as pollen sources for Melipona crinita; the lines between the red and blue dots indicate that the families identified in this study are part of those that are already known to provide floral resources for Melipona bees in the Amazon. The chart was built based on data from Pimentel et al. (2021). / Puntos azules - familias visitadas por Melipona en la AmazonÍa, entre 1977 y 2020; puntos rojos - familias identificadas en este estudio como fuentes de polen para Melipona crinita; las lÍneas entre los puntos rojo y azul indican que las familias identificadas en este estudio son parte de las que ya se sabe que proporcionan recursos florales para las abejas meliponas en la AmazonÍa. El gráfico fue construido con base en datos de Pimentel et al. (2021).
Figure 9 in Pollen niche of Melipona crinita Moure & Kerr, 1950 (Hymenoptera: Apidae) in a meliponary of Acre, Brazil: a study case
Figure 9. Frequency of pollen types collected by Melipona crinita, based on the origin and growth habit of each plant species. / Frecuencia de tipos de polen recolectados por Melipona crinita, según el origen y hábito de crecimiento de cada especie vegetal.
Figure 8 in Pollen niche of Melipona crinita Moure & Kerr, 1950 (Hymenoptera: Apidae) in a meliponary of Acre, Brazil: a study case
Figure 8. Frequency of growth habit and origin of plants visited by Melipona crinita, from April 2018 to March 2019. / Frecuencia de hábito de crecimiento y origen de las plantas visitadas por Melipona crinita, de abril de 2018 a marzo de 2019.
Figure 6 in Pollen niche of Melipona crinita Moure & Kerr, 1950 (Hymenoptera: Apidae) in a meliponary of Acre, Brazil: a study case
Figure 6. Frequency of occurrence of the most representative pollen types, within each sampled month. Only the two most abundant in each month are represented. / Frecuencia de presencia de los tipos de polen más representativos, dentro de cada mes muestreado. Sólo se representan los dos más abundantes de cada mes.
Figure 7 in Pollen niche of Melipona crinita Moure & Kerr, 1950 (Hymenoptera: Apidae) in a meliponary of Acre, Brazil: a study case
Figure 7. Distribution of the flowering period of the plants used by Melipona crinita, for pollen collection, from April 2018 to March 2019. / Distribución del periodo de floración de las plantas utilizadas por Melipona crinita para la recolección de polen, desde abril de 2018 hasta marzo de 2019.
Figure 2 in Pollen niche of Melipona crinita Moure & Kerr, 1950 (Hymenoptera: Apidae) in a meliponary of Acre, Brazil: a study case
Figure 2. Optical photomicrographs of pollen types collected by Melipona crinita: / FotomicrografÍas ópticas de tipos de polen recogidos por Melipona crinita: Anacardiaceae – Schinus (1); Apiaceae – Eryngium foetidum (2); Arecaceae – Astrocaryum aculeatum (3); Cocos nucifera (4); Oenocarpus bacaba (5); Asteraceae – Vernonia (6); Begoniaceae – Begonia (7); Bixaceae – Bixa (8); Cannabaceae – Celtis (9); Combretaceae – Combretum (10); Cucurbitaceae – Citrullus (11); Dilleniaceae – Doliocarpus (12); Doliocarpus dentatus (13); Euphorbiaceae – Alchornea (14); Aparisthmium cordatum (15); Croton lanjouwensis (16); Fabaceae (Caesalpinioideae) Copaifera multijuga (17); Delonix (18); Lonchocarpus (19); Senna (20); Fabaceae (Mimosoideae) Inga edulis (21); Inga marginata (22); Mimosa adenophylla (23); Mimosa caesalpiniifolia (24) (Bars = 20 µm).
Figure 1 in Pollen niche of Melipona crinita Moure & Kerr, 1950 (Hymenoptera: Apidae) in a meliponary of Acre, Brazil: a study case
Figure 1. Location of the meliponary where the study was carried out (Google Earth ™). / Ubicación del meliponario donde se realizó el estudio (Google Earth ™).
Figure 4 in Pollen niche of Melipona crinita Moure & Kerr, 1950 (Hymenoptera: Apidae) in a meliponary of Acre, Brazil: a study case
Figure 4. (a) Frequency of occurrence of botanical families visited by Melipona crinita, from April 2018 to March 2019. (b) Frequency of occurrence of the Mimosoideae, Caesalpinioideae and Papilionoideae subfamilies. / (a) Frecuencia de presencia de familias botánicas visitadas por Melipona crinita, de abril de 2018 a marzo de 2019. (b) Frecuencia de presencia de las subfamilias Mimosoideae, Caesalpinioideae y Papilionoideae.
Figure 5 in Pollen niche of Melipona crinita Moure & Kerr, 1950 (Hymenoptera: Apidae) in a meliponary of Acre, Brazil: a study case
Figure 5. Frequency of occurrence of pollen types present in samples of Melipona crinita, from April 2018 to March 2019. / Frecuencia de presencia de tipos de polen presentes en muestras de Melipona crinita, de abril 2018 a marzo 2019.
Figure 2 in The type material of Melipona postica Latreille, the type species of the stingless bee genus Scaptotrigona Moure (Hymenoptera, Apidae)
Figure 2 Lectotype worker of Melipona postica Latreille, 1809, deposited at the Museum für Naturkunde, Berlin, Germany. A. Dorsal habitus. B. Mesosoma and anterior portion of metasoma, dorsal view. C. Posterior portion of mesosoma and metasoma, dorsal view. D. Wings. E. Metasoma, posterodorsal view. F. Specimen labels.
Figure 5 in The type material of Melipona postica Latreille, the type species of the stingless bee genus Scaptotrigona Moure (Hymenoptera, Apidae)
Figure 5 Entrance tubes of natural nests of Scaptotrigona postica. A, Nest found in the campus of the Universidade de Santa Cruz, Ilhéus, Bahia. B, Same, close-up view of entrance tube. C, Nest found in the campus of the Universidade de Santa Cruz, Ilhéus, Bahia. D, Nest found in the Reserva Biológica União, Casimiro de Abreu, Rio de Janeiro. E, Two nests found at same tree in Fazenda Morro do Capim, Sete Barras, São Paulo. F. Same, close-up view of the lower nest entrance.
Figure 4 in The type material of Melipona postica Latreille, the type species of the stingless bee genus Scaptotrigona Moure (Hymenoptera, Apidae)
Figure 4 Holotype worker of Scaptotrigona postica xanthotricha Moure, 1950, deposited at the DZUP collection, Universidade Federal do Paraná, Curitiba, Brazil.A.Lateral habitus. B. Dorsal habitus. C. Head, frontal view. D. Metasoma, posterodorsal view. E. Specimen labels. A-B, C-D, respectively, at same scale.
Figure 3 in The type material of Melipona postica Latreille, the type species of the stingless bee genus Scaptotrigona Moure (Hymenoptera, Apidae)
Figure 3 Paralectotype worker of Melipona postica Latreille, 1809, from the Naturhistorisches Museum, Vienna, Austria. A. Head, frontal view. B. Wings. C. Head and mesosoma, dorsal view. D. Posterior portion of mesosoma and metasoma, dorsal view. E. Mesosoma, laterodorsal view. F. Head, dorsal view. G. Specimen labels; the first paralectotype label should read "Klug, 1808", but by mistake I wrote "Klug, 1807".
Tragedy of the commons in Melipona bees revisited
<p><i>Melipona </i>stingless bees display a paradoxical overproduction of queens, which are later eliminated by nestmate workers. Mechanistically, it was suggested that the monoterpenoid geraniol deposited into newly provisioned cells by adult bees would cause larvae to develop into queens in <i>Melipona beecheii</i>. This system could be evolutionarily stable if many of these new queens would leave the nest and parasitize other genetically unrelated colonies nearby, as was shown to occur in a congeneric species<i>.</i> Here, we use microsatellite markers to test whether queen overproduction could be a strategy by which adult workers control the caste fate of the developing larvae to export copies of their own genes to the rest of the population via queen parasitism in <i>M. beecheii</i>. In addition, we re-examined whether artificially increasing the levels of geraniol indeed caused larvae to develop as queens rather than workers. Contrary to our prediction, we found no evidence for queen parasitism in <i>M. beecheii</i> and observed no effect of geraniol on the rearing of new queens. Together, these results support the original "tragedy of the commons" hypothesis for queen overproduction in <i>Melipona</i> bees, where individual larvae selfishly bias their development towards the queen pathway according to their best evolutionary interests.</p>
Tragedy of the commons in Melipona bees revisited
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Figure 5 in A new species of Paratrigona Schwarz, 1938 from northeastern Brazil, with notes on the type material of Melipona lineata Lepeletier, 1836 (Hymenoptera: Anthophila: Apidae)
Figure 5. Specimen of Paratrigona lineata (Lepeletier, 1836) from Januária (Minas Gerais State, Brazil), deposited at the BIOSIS, Institute of Biology, Federal University of Bahia, Brazil: (a). Frontal view of head; (b). Lateral view of body; (c). Dorsolateral view of mesosoma; (d). Labels. Arrows indicates presence of setae.
Figure 6 in A new species of Paratrigona Schwarz, 1938 from northeastern Brazil, with notes on the type material of Melipona lineata Lepeletier, 1836 (Hymenoptera: Anthophila: Apidae)
Figure 6. Paratype of Paratrigona lineata glabella Camargo & Moure, 1994, deposited at the Prof. J.M.F. Camargo Collection from the RPSP, University of São Paulo, Ribeirão Preto, Brazil: (a). Frontal view of head; (b). Lateral view of body; (c). Lateral view of mesepisternum; (d). Dorsal view of mesoscutellum; (e). Dorsal view of mesosoma; (f). Labels. Arrows indicate absence or presence of setae. Ownership rights to these images and their copyright belong to RPSP (Coleção Entomológica 'Prof. J.M.F. Camargo'). Photo by E.A.B. Almeida.
Figure 7 in A new species of Paratrigona Schwarz, 1938 from northeastern Brazil, with notes on the type material of Melipona lineata Lepeletier, 1836 (Hymenoptera: Anthophila: Apidae)
Figure 7. Holotype of Paratrigona incerta Camargo & Moure, 1994, deposited at the Prof. J.M.F. Camargo Collection from the RPSP, University of São Paulo, Ribeirão Preto, Brazil: (a). Frontal view of head; (b). Lateral view of body; (c). Lateral view of mesepisternum; (d). Dorsal view of mesosoma; (e). Labels. Arrows indicate presence or absence of setae. Ownership rights to these images and their copyright belong to RPSP (Coleção Entomológica 'Prof. J.M.F. Camargo'). Photo by E.A.B. Almeida.
Figure 3 in A new species of Paratrigona Schwarz, 1938 from northeastern Brazil, with notes on the type material of Melipona lineata Lepeletier, 1836 (Hymenoptera: Anthophila: Apidae)
Figure 3. Lectotype of Melipona lineata Lepeletier, 1836 deposited at the MNHP, Paris, France: (a). Frontal view of head; (b). Lateral view of body; (c, d). Dorsolateral view of mesoscutum and mesoscutellum; (e). Metatibia; (f). Labels of lectotype. Arrows indicate presence of setae.
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