Consulta: subjectFacets:"Honeybees"
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Data/hora: 03/06/2024 08:02:47

HERITABILITY OF STING CHARACTERS IN AFRICANIZED HONEYBEES
Provedor de dados: Journal of Venomous Animals and Toxins
Autores: MELO,A.; MALASPINA,O.; DINIZ-FILHO,J. A. F.
In this paper we proposed to estimate the heritability of seven morphological characters that compose the sting apparatus of the Africanized honeybee workers. An experimental design to estimate genetic parameters was based on the method developed by Oldroyd and Moran(9). This method was modified to eliminate within-colony environmental effects associated with the additive genetic variance. The estimated h&lt;img SRC="http:/img/fbpe/jvat/v3n2/image1800.gif"&gt; values ranged from 0.17 ± 0.11 (maximum width of bulb of sting stylet and height of the valve of right lancet) to 0.74 ± 0.30 (length of the lancet).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apis mellifera; Honeybees; Heritability; Sting.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301997000200003

MOLECULAR EXCLUSION CHROMATOGRAPHY OF CRUDE VENOM AS AN AUXILIARY TOOL TO IDENTIFY HYBRID HONEYBEE POPULATIONS
Provedor de dados: Journal of Venomous Animals and Toxins
Autores: PALMA,M.S.; BROCHETTO-BRAGA,M.R.; CHAUD-NETTO,J.; MALASPINA,O.; OLIVEIRA,M.R.
A comparison among the profiles of molecular exclusion chromatography in Sephadex G 100 column of venoms from Apis mellifera adansonii and Africanized honeybees revealed unique peaks which might be used to identify these populations. The venoms from hybrid populations resulting from the reciprocal mating of Apis mellifera adansonii and Africanized honeybees presented unique peaks, probably resulting from a synergistic effect between the parental genomes. The occurrence of characteristic peaks in venoms of hybrid populations might be used to identify these populations as well as to distinguish them from their parents.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apis mellifera; Venom; Hybrid populations; Molecular exclusion chromatography; Honeybees.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301995000100004

Use of repellents for honeybees (Apis mellifera L.) in vitro in the yellow passion-fruit (Passiflora edulis Deg) crop and in confined beef cattle feeders
Provedor de dados: Journal of Venomous Animals and Toxins Including Tropical Diseases
Autores: Nicodemo,D.; Nogueira Couto,R. H.
The presence of Apis mellifera in places such as candy and soft drink factories, restaurants, and ice-cream shops has been a concern to many people. In the yellow passion-fruit crop, Apis mellifera is able to collect all anther pollen but has no active role in pollination. Honeybees also visit animal feeders with chopped sugar cane, preventing the cattle from eating. This work studied the effect of natural and synthetic substances as Apis mellifera repellents in vitro in the yellow passion-fruit crop and in confined beef cattle feeders. There was a repellent effect in vitro with the following substances in decreasing order: tobacco, rue, garlic, parsley, and century plant extracts; average effect was twenty-five minutes. For the yellow passion-fruit,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Honeybees; Repellents; Yellow passion fruit crop; Beef cattle feeder; Pheromones.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992004000100006

Relationship among Apis mellifera L. stings, swarming and climate conditions in the city of Rio Claro, SP, Brazil
Provedor de dados: Journal of Venomous Animals and Toxins Including Tropical Diseases
Autores: Pereira,AM; Chaud-Netto,J; Bueno,OC; Arruda,VM.
The presence of bees (Apis mellifera L.) in urban areas has increased in recent years due to environmental disturbances caused by humans. Bee migration to cities may provoke serious accidents, since some people present allergic reactions to their venoms. In Rio Claro city, São Paulo state, Brazil, the number of calls to the fire brigade for removal of bee swarms, and the number admissions in local hospitals due to bee stings were investigated during 2002 and 2003, and a correlation between these data and the average temperature, rainfall and relative humidity was found. The study period was divided into three phases according to the number of times that the fire brigade was called to remove swarms (263 times): January to July 2002 - 51 calls (19.39%);...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Synanthropism; Reproductive swarms; Absconding; Environmental variables; Honeybees.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992010000400016

Honeybees and caterpillars: epidemiology of accidents involving these animals in the Criciúma region, southern Santa Catarina State, Brazil
Provedor de dados: Journal of Venomous Animals and Toxins Including Tropical Diseases
Autores: Cristiano,MP; Cardoso,DC.
The present study aimed to acquire knowledge regarding some aspects of the epidemiology and injuries provoked by honeybees and caterpillars in southern Santa Catarina State, Brazil. Epidemiological information concerning accidents with both animals was prospectively collected from the System of Injury Notification Information (SINAN) files of the Municipal Health Secretary of the Criciúma region, Brazil. Between 1994 and 2006, 203 cases of accidents were registered, 149 provoked by honeybees (73.39%) and 54 by caterpillars (26.61%). The majority of the victims (200 cases) presented full recovery, two cases presented sequelae after recovery, and only one death was recorded in a case involving honeybee injury. The high frequency of victim recovery suggests...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Epidemiology; Honeybees; Caterpillars; Poisonous animals; Accidents; Brazil.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000400013

An Economic Valuation of Pollination Services in Georgia
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Barfield,   Ashley; Bergstrom,   John C.; Ferreira,   Susana.
The production of many crops depends on biotic pollination. As pollinator populations decline, assessments of the potential consequential loss of economic value are critical. We estimate the economic value of pollination services ($608 million), crop vulnerability ratio (21 percent), and pollination’s contribution to agricultural production value (5 percent) for Georgia.
Tipo: Presentation
Palavras-chave: Pollination; Colony Collapse Disorder; Georgia; Bioeconomic; Value; Vulnerability; Ecosystem Services; Crops; Honeybees; Pollinators; Pollination Dependency; Environmental Economics and Policy.
Ano: 2012
URL: http://purl.umn.edu/119780

Bee assemblage in habitats associated with Brassica napus L.
Provedor de dados: Revista Brasileira de Entomologia
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

Botanical source investigation and evaluation of the effect of seasonality on Brazilian propolis from Apis mellifera L.
Provedor de dados: Scientia Agricola
Autores: Tomazzoli,Maíra Maciel; Zeggio,Amélia Regina Somensi; Pai Neto,Remi Dal; Specht,Leandro; Costa,Christopher; Rocha,Miguel; Yunes,Rosendo Augusto; Maraschin,Marcelo.
ABSTRACT: Bees generally use different botanical sources of resins for the production of propolis. The elucidation of botanical sources of propolis and identification of the effects of seasonality on the chemical profile of propolis are recognized as two important aspects in the development of a high quality product. Thus, our objective was to elucidate the botanical source and identify the effect of the seasons on the chemical profile of propolis produced in southern Brazil. The chemical profile of the samples was analysed by spectrophotometric and chromatographic techniques and the results were coupled to multivariate analysis. Field observation of the foraging behaviour of Apis mellifera L. revealed its preference for the Baccharis dracunculifolia DC....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Baccharis dracunculifolia; Honeybees; Phenolics; Seasons.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000601301

FLIGHT RANGE OF AFRICANIZED HONEYBEES, Apis mellifera L. 1758 (Hymenoptera: Apidae) IN AN APPLE GROVE
Provedor de dados: Scientia Agricola
Autores: PARANHOS,B.A.J; WALDER,J.M.M; CHAUD NETO,J.
Africanized honeybees from five colonies were marked with P-32 and taken to an apple grove for a flight behavior study. The method used to determine the flight range was to put out an array of tagged trees in a cross pattern with the colonies arranged in the center point of a 0.8 ha test area. The tagged trees were located 10 meters apart in the 4 rows of 50 meters each, arranged according to the North, South, East, and West directions. Bees were collected while visiting the tagged tree flowers twice a day, during a ten-day period. The number of honeybees marked decreased in relation to the distance from the hives. Analysis of variance showed that a linear regression was highly significant to describe the process. Geographic directions did not affect the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Honeybees; Flight range; Radiophosphorus.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161997000100012

Fruit set of distylous Psychotria carthagenensis Jacq. (Rubiaceae) mediated by Apis mellifera (Apidae) and species of Augochloropsis (Halictidae)
Provedor de dados: Acta Botanica Brasilica
Autores: Faria,Rogério Rodrigues; Araujo,Andréa Cardoso.
Heterostyly is a floral polymorphism consisting in the presence of two morphs in the population that differ reciprocally in the position of their sexual organs. Heterostylous species depend on visitors to produce fruits, but the efficiency of insect species as pollinators greatly varies and depends on the morph visited. The aim of the present study was to determine the effect of a single visit by the bees Apis mellifera and species of Augochloropsis on the fruit set of the distylous species Psychotria carthagenensis.After a single visit from each bee species, flowers were bagged to monitor the fruit set. Pollination effectiveness between pollinators and morphs was compared. The results of the experiments were compared with data from manual intermorph...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Bee pollination; Heterostyly; Honeybees; Pollination effectiveness; Reproductive success.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000200278

Pollination of soybean (Glycine max L. Merril) by honeybees (Apis mellifera L.)
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Chiari,Wainer César; Toledo,Vagner de Alencar Arnaut de; Ruvolo-Takasusuki,Maria Claudia Colla; Oliveira,Arildo José Braz de; Sakaguti,Eduardo Shiguero; Attencia,Valeria Maria; Costa,Fabiana Martins; Mitsui,Marina Hitomi.
This experiment was carried out to evaluate the effect of the honeybee pollination in the production and quality of soybean seeds (Glycine max L. Merril). Seed production was higher (P=0.0001) in covered areas with honeybee colonies (50.64%) and uncovered areas (57.73%) than in covered areas without honeybee colonies. It could be concluded that honeybees were responsible for 95.5% of the pollination accomplished by insects. The pod number in covered treatment with honeybees was 61.38% higher (P=0.0002) than in the covered treatment without honeybees. The average weight of 100 seeds was larger (P=0.0001) in the area covered without honeybees, and reached 17.8 g. The medium content of crude protein in grains was 36.7% and the average oil content was 20.2%....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apis mellifera; Soybean; Glycine max; Honeybees; Pollination; Seed production.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000100005

Side-effects of pesticides used in the organic system of production on Apis mellifera Linnaeus, 1758
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Efrom,Caio Fábio Stoffel; Redaelli,Luiza Rodrigues; Meirelles,Rafael Narciso; Ourique,Cláudia Bernardes.
This study aimed to evaluate the effects of pesticides, used in the organic system, on Apis mellifera under laboratory conditions. Four multiple (0.25x, 0.5x, 1x and 2x) concentrations as recommended by they manufacturers of the following products: Rotenat CE®, Pironat®, Biopirol 7M®, Organic neem®, Natuneem® and lime sulfur were tested by topical application and ingestion. Of all the products and concentrations tested, only the lime sulfur (5000 ml 100L-1 and 10000 mL 100L-1 of water) by ingestion, and Rotenat CE® (1200ml 100L-1 of water) on topical application were considered slightly harmful for A. mellifera, as the classification of IOBC/WPRS for the laboratory tests.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Honeybees; Rotenone; Lime sulfur; Neem; Pyroligneous extract.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000100005

Phenoloxidase activity and haemolymph cytology in honeybees challenged with a virus suspension (deformed wings virus DWV) or phosphate buffered suspension (PBS)
Provedor de dados: Ciência Rural
Autores: Millanta,Francesca; Sagona,Simona; Mazzei,Maurizio; Forzan,Mario; Poli,Alessandro; Felicioli,Antonio.
ABSTRACT:  The innate immune system of honeybees mainly consists in antimicrobial peptides, cellular immunity and melanisation. In order to investigate the immune response of honeybees to immune stressors, three stress degrees were tested. Newly emerged bees naturally DWV-infected were collected from a Varroa mite-free apiary and divided into three experimental groups: naturally DWV infected bees, PBS injected bees, and artificially DWV super infected bees. Phenoloxidase activity and haemolymph cellular subtype count were investigated. Phenoloxidase activity was highest (P&lt;0.05) in DWV-superinfected bees, and the haemocyte population differed within the three observed groups. Although, immune responses following DWV infection have still not been...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cellular immunity; Phenoloxidase; Honeybees; DWV; Haemocytes.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000200550