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| Registros recuperados: 13 | |
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| Morato,Elder Ferreira. |
| The effects of forest fragmentation on the patterns of vertical abundance and richness of solitary wasp and bee communities was investigated near Manaus, Amazonas. Wasps and bees were trap-nested at 1,5, 8 and 15 m above the ground in continuous primary forestand isolated forest fragments. In general, the number of nests and species increased with height for both groups. In particular, bee species richness at 15 m was almost twice that at 1,5 mm. However, one species of Trypoxylon Latreille, 1796 (Sphecidae) consistently nested in the understorey. Thus, patterns of abundance and richness distributions indicated stratification. A contingency analysis showed that fragmentation altered stratification of nesting activity of the wasp community in fragments.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forest fragmentation; Amazonia; Stratification; Solitary wasps; Solitary bees. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000300010 |
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| COLLEVATTI,R. G.; SCHOEREDER,J. H.; CAMPOS,L. A. O.. |
| We studied flight distance and directionality of bee pollinators on the tropical shrub weed Triumfetta semitriloba Jacq. (Tiliaceae), addressing (1) within- and between-plant movement pattern; (2) distances flown between plants; (3) flight directionality. Flowering plants were distributed in well-delimited clumps, in each of two pasture areas (A1 and A2) and one area of forest gap (A3), in Viçosa, southeastern Brazil. Five solitary bee species, Augochlorella michaelis, Augochloropsis cupreola, Pseudocentron paulistana, Ceratinula sp., Melissodes sexcincta, and two social bee, Plebeia droryana, P. cf. nigriceps were observed. All species moved mainly to the nearest flower on the same individual plant and, in between-plant movements, to the first or second... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Foraging behaviour; Directionality; Pollination; Flight distance; Solitary bees. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000100005 |
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| Lourenço,Diego de Vasconcelos; Silva,Luciano Pinheiro da; Meneses,Hiara Marques; Freitas,Breno Magalhães. |
| ABSTRACT Pollination is a key factor in global agricultural production, and there is a need to increase the number of bee species that can be bred for pollination in agriculture, such as the oil-collecting solitary bee Centris (Heterocentris) analis (Fabricius, 1804). In this study, the nesting and reproductive behavior of the bee were studied under tropical conditions, with the aim of producing information for breeding and using C. analis for crop pollination. The study was conducted from May to October 2017, using trap nests and daily observations from 5.00 a.m. to 6.00 p.m. of nest occupation and building, foraging trips in the field and interactions between individuals and kleptoparasites. The results showed that the bees easily colonize and nest in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Centridini; Solitary bees; Oil-collecting bee; Bee farming. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000300468 |
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| Aguiar,Cândida Maria Lima; Gaglianone,Maria Cristina. |
| Nesting activity of Centris aenea Lepeletier, 1841 was studied in two Brazilian habitats, Caatinga (Monte Santo, Bahia) and Cerrado (Palmeiras, Bahia and Luiz Antônio, São Paulo). Nests were excavated in the ground and did not tend to be aggregated together at the two sites, but at Palmeiras, nests were in a large aggregation. Nest architecture consists of a single unbranched tunnel, sloping to vertical, which leads to a linear series of four cells, placed from 8 to 26 cm in depth. Cells are urn-shaped with a rounded base, and their cell caps have a central hollow process, as in other Centridini. Nest architecture of C. aenea was compared to other species of Centris Fabricius, 1804. Provisions are composed of a pollen mass covered by a thin liquid layer on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caatinga; Cerrado; Floral oils; Nesting behavior; Solitary bees. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000400006 |
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| Cruz,Ana Paula Araújo da; Dórea,Marcos da Costa; Lima,Luciene Cristina Lima e. |
| The aim of this study was to identify, by sediment pollen analysis, the plant species used as floral resources for the provisioning of brood cells in Centris (Hemisiella) tarsata, in an area of Caatinga, within the municipality of Nova Soure, Bahia State, Brazil. The analysis of pollen contents from three brood cells revealed 11 pollen types, corresponding to four botanical families. Malpighiaceae was represented most, followed by Leguminosae, Ochnaceae, and Solanaceae, the latter two represented by just a single pollen type each. On the basis of the percentages in the samples, it was possible to infer that C. tarsata visited distinct plants, but intensified its pollen collection in species related to Aeschynomene martii and Solanum paniculatumpollen... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Entomopalynology; Floral resources; Semi-arid; Solitary bees; Trap nests. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000200282 |
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| Registros recuperados: 13 | |
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