Consulta: subjectFacets:"Solitary bees"
Registros recuperados: 13
Data/hora: 17/06/2024 03:38:33

Pollen types used by Centris (Hemisiella) tarsata Smith (1874) (Hymenoptera, Apidae) in the provisioning of brood cells in an area of Caatinga
Provedor de dados: 39
Autores: 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

Foraging behavior of bee pollinators on the tropical weed Triumfetta semitriloba: flight distance and directionality
Provedor de dados: 57
Autores: 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

Variation in Native Bee Faunas and its Implications for Detecting Community Changes
Provedor de dados: 7
Autores: Williams, Neal M; University of Calgary; nwilliam@ucalgary.ca; Minckley, Robert L; University of Utah; minckley@biology.utah.edu; Silveira, Fernando A; Universidade Federal de Minas Gerais; fernando@mono.icb.ufmg.br.
Changes in flower-visiting insect populations or communities that result from human impacts can be documented by measuring spatial or temporal trends, or by comparing abundance or species composition before and after disturbance. The level of naturally occurring variation in populations and communities over space and time will dictate the sampling effort required to detect human-induced changes. We compiled a set of existing surveys of the bee faunas of natural communities from around the world to examine patterns of abundance and richness. We focused on a subset of these studies to illustrate variation in bee communities among different sites and within sites over different spatial and temporal scales. We used examples from our compilation and other...
Tipo: Peer-Reviewed Reports
Palavras-chave: Apiformes; Apoidea; Faunal surveys; Flower-visiting insects; Functional groups; Monitoring long-term changes; Sampling protocol; Solitary bees; Species composition; Species richness; Worldwide bee faunas.
Ano: 2001

A new technique in the excavation of ground-nest bee burrows (Hymenoptera: Apoidea)
Provedor de dados: 92
Autores: Marinho,Diego; Andrade,Juliana; Araujo,Rodrigo O.; Vivallo,Felipe.
ABSTRACT Bees have a diversified natural history, thus the methods applied to study such diversity are varied. When it comes to studies of nesting biology, bees which nest in pre-existing cavities have been reasonably well studied since researchers started using trap-nests. However, bees whose nests are built underground are poorly studied due to the difficulty of finding natural nesting areas and the absence of a method that facilitates bee nest excavation. The latter is evidenced by the lack of accurate descriptions in literature of how nests are excavated. In this study we tested cylindrical rubber refills of eraser pen as a new material to be used as a tracer of underground nest galleries in a natural nesting area of two species of Epicharis Klug, 1807...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Apidae; Apoidea; Brood cells; Methodology; Solitary bees.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262018000100001

Bee assemblage in habitats associated with Brassica napus L.
Provedor de dados: 92
Autores: Halinski,Rosana; Dorneles,Andressa Linhares; Blochtein,Betina.
ABSTRACTAssessments in agricultural crops indicate that alterations in the landscape adjacent to the crops can result in reduced productivity due to loss or low abundance of pollinating agents. In the canola crop, production is partially dependent on insect pollination. Therefore, knowledge of the faunal diversity within and near crop fields is key for the management of these insects and consequently for the increase in productivity. This study aimed to determine and compare the diversity of bees in habitats associated with canola fields in southern Brazil. Bees were captured in four agricultural areas using pan traps in three habitat classes: (1) flowering canola crop, (2) forest remnant, and (3) grassland vegetation. The highest abundance of bees was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canola; Honeybees; Pollinators; Solitary bees.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000300222

Euglossine bee communities in small forest fragments of the Atlantic Forest, Rio de Janeiro state, southeastern Brazil (Hymenoptera, Apidae)
Provedor de dados: 92
Autores: Aguiar,Willian Moura de; Gaglianone,Maria Cristina.
Euglossine bee communities in small forest fragments of the Atlantic Forest, Rio de Janeiro state, southeastern Brazil (Hymenoptera, Apidae). Euglossine bees are important pollinators in forests and agricultural areas. Although the structure of their communities is critically affected by anthropogenic disturbances, little is known about these bees in small forest fragments. The objectives of this study were to analyze the composition, abundance, and diversity of euglossine bee species in nine small fragments of different phytophysiognomies of the Atlantic Forest in southeastern Brazil, and to identify the environmental variables that may be related to the species composition of these communities. Males were sampled quarterly from May 2007 to May 2009 with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chemical baits; Fragmentation; Loss habitat; Orchid bees; Solitary bees.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000200008

Nesting and reproductive habits of the solitary bee Centris analis in trap nests under a tropical climate
Provedor de dados: 124
Autores: 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

Efeitos da fragmentação florestal sobre vespas e abelhas solitárias em uma área da Amazônia Central
Provedor de dados: 104
Autores: Morato,Elder F.; Campos,Lúcio Antônio de O.
The effects of forest fragmentation on tree-hole nesting solitary wasps and bees were investigated at a site 90 km north of Manaus, Brazil. Wasp and bee faunas were monitored in continuous terra firme forest, forest fragments of 1, 10 and 100 ha, natural gaps in continuous forest and deforested areas. These habitats were studied in terms of abundance, richness, diversity and similarity. The wasps and bees were monitored monthly during June 1988 through June 1990 by means of a trap-nests technique. A total of 1529 nests of wasps of 24 species and 405 nests of bees of 14 species were collected. The number of species of wasps and bees varied little among the habitats. The genus Trypoxylon Latreille, 1796 (Sphecidae) accounted for 79% of wasp nests and Centris...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazonia; Forest fragmentation; Solitary bees; Solitary wasps; Trap-nests.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000200014

Efeitos da fragmentação florestal sobre vespas e abelhas solitárias na Amazônia Central. II. estratificação vertical
Provedor de dados: 104
Autores: 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

Aspectos morfológicos e comportamentais dos machos de Ancyloscelis Latreille (Anthophoridae, Apoidea)
Provedor de dados: 104
Autores: Alves-dos-Santos,Isabel.
Specimens of five bee species of the genus Ancyloscelis Latreile, 1836 were sampled during three consecutive years in Rio Grande do Sul, Brazil, with the aim to study their morphology and behavior during flower visits. Characteristics that allow to distinguish the five species are presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hymenoptera; Solitary bees; Legs morphology; Patrol behavior.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000600005

Nesting biology of Centris (Centris) aenea Lepeletier (Hymenoptera, Apidae, Centridini)
Provedor de dados: 104
Autores: 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

Nesting biology of Centris (Hemisiella) tarsata Smith (Hymenoptera, Apidae, Centridini)
Provedor de dados: 104
Autores: Aguiar,Cândida M. L.; Garófalo,Carlos A.
Nests of Centris tarsata Smith, 1874 were obtained from trap-nests in areas of dry semi-deciduous forest (Baixa Grande) and caatinga (Ipirá), in the State of Bahia. Nesting occurred in bamboo canes and in tubes of black cardboard with 5.8 cm (= small tube) and 10.5 cm (= large tube) in length and 0.6 and 0.8 cm in diameter, respectively. In both areas C. tarsata nested during the wet season producing four generations in Baixa Grande and three generations in Ipirá. The immatures of one generation underwent diapause at both sites. The bees constructed their nests with a mixture of sand and oil. In general, the cells were elongated and arranged in linear series with its opening pointing towards the nest entrance. Completed nests had two to three cells in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Monitoring; Nest structure; Solitary bees; South American dry forests; Trap-nests.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752004000300009

Trap-nesting bees (Hymenoptera, Apoidea) in areas of dry semideciduous forest and caatinga, Bahia, Brazil
Provedor de dados: 104
Autores: Aguiar,Cândida M. L.; Garófalo,Carlos A.; Almeida,Gesline F.
In this study were examined the species richness and seasonal abundance of cavity-nesting bees in areas of dry semi-deciduous forest and caatinga in the State of Bahia, Brazil. Sampling was done employing two types of trap-nests: bamboo canes and tubes made of black cardboard with dimensions of either 58 x 6 mm or 105 x 8 mm. The traps were inspected once a month. One hundred and forty-six nests of 11 bee species were collected in the forest, and 121 nests of seven species were collected in the caatinga. Five species of cleptoparasitic bees were also reared from these nests. The highest nesting frequencies occurred in the wet season in both areas. Nests parasitism was important only for Centris tarsata Smith, 1874, and was higher at the caatinga site than...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nesting biology; Solitary bees; South American dry forests; Trap-nests.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000400031