The Social Food-Flow Within the Colony of a Stingless Bee, Melipona Favosa (F.)

Behaviour ◽  
1985 ◽  
Vol 92 (1-2) ◽  
pp. 39-58 ◽  
Author(s):  
Cees Van De Guchte ◽  
Luc L.M. De Bruijn ◽  
Marinus J. Sommeijer

Trophallaxis in workers of stingless bees was studied in colonies of Melipo favosa with marked individuals. In the brood area of the nest all trophallactic interactions are initiated by the soliciting bee, whereas spontaneous offerings occur particularly near the nest exit. The trophallactic network within the colony does not represent an open system that leads to even distribution. The cell-provisioning bees obtain food, mainly from other bees. Since cell-provisioning is strongly age-dependent, the trophallactic benefit changes strongly according to the age of the bees. The bees that discharge on a particular day are not involved in the pollen uptake from food pots on that day. The dischargers probably obtain trophallactically a liquid food suspension with a high pollen content, which they subsequently regurgitate into the brood cells. The dischargers also perform active food solicitations with other bees immediately after they have discharged during the progress of the provisioning of a cell. For this they often depart quickly from the cell that is being filled. We assume that their withdrawal from the cell vicinity enhances their chances to meet quickly bees that are less reluctant than the other dischargers nearby to donate food to them. This behavior sometimes enables dischargers to perform subsequent regurgitations in the same cell.

1983 ◽  
Vol 38 (11-12) ◽  
pp. 1066-1068 ◽  
Author(s):  
W. Francke ◽  
W. Schröder ◽  
E. Engels ◽  
W. Engels

Head extracts of adult workers of the Brazilian stingless bee Scaptotrigona postica (Trigonini, Meliponinae: Apidae) were analysed for volatile substances by gas chrom atography/ mass spectroscopy. Individual worker bees performing clearly defined tasks and representing five age groups were collected. A total of 36 compounds was identified, 22 of which had not been previously described for a Trigona species. The major components are 2-heptanol, 2-tridecanone, 2-pentadecanone, Z-5-tetradecenylbutanoate and Z-7-hexadecenylbutanoate. 11 of the 36 compounds increase in concentration with age, but only 2 decrease. The other substances are present in more or less constant concentrations. These data are discussed assuming more complicated pheromone-m ediated interactions within an age-dependent polyethism between old workers acting inside and outside the nest than between young house bees


2019 ◽  
Vol 43 (4) ◽  
Author(s):  
Ali Agus ◽  
Agussalim Agussalim ◽  
Nafiatul Umami ◽  
I Gede Suparta Budisatria

Bee activities and colony may affect the production of bee products. Bee-pollen is one of the important products of honeybees, besides of honey. Tetragonula laeviceps is a group member of stingless bees found in tropical region. In Indonesia, Tetragonula laeviceps mostly create a nest in bamboos that make unfortunately difficult for harvesting of its products. The aim of this study was to investigate the effect of different beehives size and the daily activity (morning vs. afternoon) of stingless bee Tetragonula laeviceps on bee-pollen production. This study was conducted in Ngrandu, Katongan Village, Sub-district of Nglipar, Gunungkidul, Yogyakarta. Forty colonies of Tetragonula laeviceps were obtained from bamboos (similar in diameter and length) were transferred into four different group of beehives size (BS) made from dried wood, respectively: 35x17.5x13.5 (BS1); 35x20x17.5 (BS2); 37.5x20x20 (BS3) and 40x20x20 cm (BS4). Each group of beehives size had ten colonies/beehives as replicates. The colonies consisted of a queen bee, eggs, worker bees, and drones were transferred into wood beehives, and they were kept for two months for the study. The bee-pollen was harvested from beehives, separated from the propolis then weighed. The production of bee-pollen in the four different beehives size (BS1: 2.34±2.48 g/colony; BS2: 4.56±3.94 g/colony; BS3: 1.30±1.22 g/colony, BS4: 1.02±0.63 g/colony) was not different (ns) among the groups. The daily activity of bee bring the pollen to the nest in the morning (07.00 to 11.00) was significantly different (P<0.05) among the groups, but not significant (ns) different in the afternoon (14.00 to 17.00). The frequency of bringing in pollen into the hives at the morning is higher than at the afternoon (21.75 vs. 12.43 times/5 minutes). It could be concluded that the colony in beehive size of BS2 (35x20x17.5 cm) has higher daily activities and thus higher bee-pollen production, compared to the other beehives groups.


2020 ◽  
Vol 23 ◽  
Author(s):  
Celso Barbiéri ◽  
Tiago Mauricio Francoy

Abstract Meliponiculture, which is the rational keeping of stingless bees, has been practiced for centuries by pre-colonial populations and has been gaining adepts in recent years. In addition to being an alternative for the conservation of these pollinators, it is an activity that promotes sustainability. From a theoretical point of view, disciplinary approaches are insufficient to understand meliponiculture, due to the multiplicity of Domains and aspects that compose it. Thus, this manuscript proposes a theoretical model to analyze meliponiculture in an interdisciplinary way, dealing with the environmental, cultural, social and economic Domains. Such activity should be encouraged through participatory and interdisciplinary public policies, integrating the various factors involved, such as honey farmers (meliponists), scientists, governments, companies and non-governmental organizations. Public policy approaches to meliponiculture as an economic activity must respect the conservation needs of the stingless bee species, and whenever possible, the social and cultural values attributed to the activity.


2021 ◽  
Vol 4 (2) ◽  
pp. 1067-1076
Author(s):  
Pham Hong Thai ◽  
Phan Thanh Ngoc ◽  
Ha Thi Le Huong

Stingless bees are distributed in tropical and subtropical regions. There are over 16,000 species of stingless bees around the world, among which, 42 species are from Asia (Kerr & Maule, 1964). Sixteen species of stingless bees have been identified in Vietnam (Sakagami, 1975; Sakagami, 1978; Engel, 2000; Chinh et al., 2005; Rasmussen, 2008). In this study, the biological characteristics of Tetrigonilla collina, as a representative for Southeast Asian stingless bees, were observed and recorded. The worker cell dimensions were 5.30 ± 0.34mm in length by 4.28 ± 0.37mm in width with a volume of 45.02 ± 5.74mL (food volume: 19.05 ± 3.5mL; ratio: 42.27%). The new cells were mostly built in the morning (from 2:00 to 10:00 am) and the queen laid eggs (2.52 ± 0.81 sec per egg) and capped the cells in the afternoon (from 12:00 to 17:00 pm). The average worker-cell building period was 12.03 ± 3.78 hours. Mainly, six of first ten bees that inserted made food discharges in a cell. The food discharge occurred in a very short time, which was 1.58 ± 0.6 minutes. The new cell numbers of the colony were reduced at the end of the experimental period.


2019 ◽  
Vol 78 (1-2) ◽  
pp. 69-75 ◽  
Author(s):  
Mikaël De Clercq ◽  
Charlotte Michel ◽  
Sophie Remy ◽  
Benoît Galand

Abstract. Grounded in social-psychological literature, this experimental study assessed the effects of two so-called “wise” interventions implemented in a student study program. The interventions took place during the very first week at university, a presumed pivotal phase of transition. A group of 375 freshmen in psychology were randomly assigned to three conditions: control, social belonging, and self-affirmation. Following the intervention, students in the social-belonging condition expressed less social apprehension, a higher social integration, and a stronger intention to persist one month later than the other participants. They also relied more on peers as a source of support when confronted with a study task. Students in the self-affirmation condition felt more self-affirmed at the end of the intervention but didn’t benefit from other lasting effects. The results suggest that some well-timed and well-targeted “wise” interventions could provide lasting positive consequences for student adjustment. The respective merits of social-belonging and self-affirmation interventions are also discussed.


2012 ◽  
Vol 5 (2) ◽  
pp. 109
Author(s):  
Besin Gaspar

This research deals with the development of  self concept of Hiroko as the main character in Namaku Hiroko by Nh. Dini and tries to identify how Hiroko is portrayed in the story, how she interacts with other characters and whether she is portrayed as a character dominated by ”I” element or  ”Me”  element seen  from sociological and cultural point of view. As a qualitative research in nature, the source of data in this research is the novel Namaku Hiroko (1967) and the data ara analyzed and presented deductively. The result of this analysis shows that in the novel, Hiroko as a fictional character is  portrayed as a girl whose personality  develops and changes drastically from ”Me”  to ”I”. When she was still in the village  l iving with her parents, she was portrayed as a obedient girl who was loyal to the parents, polite and acted in accordance with the social customs. In short, her personality was dominated by ”Me”  self concept. On the other hand, when she moved to the city (Kyoto), she was portrayed as a wild girl  no longer controlled by the social customs. She was  firm and determined totake decisions of  her won  for her future without considering what other people would say about her. She did not want to be treated as object. To put it in another way, her personality is more dominated by the ”I” self concept.


Author(s):  
Marcio Luis Costa ◽  
Alex Silva Messias

Nas últimas décadas se observa o retorno da religião sob forma de fundamentalismo religioso, utilizando a mídia e instrumentos de pressão política para fazer valer suas crenças, pois diante do receio ao questionamento, os fundamentalistas veem no “outro”, no diferente, uma ameaça a ser combatida e, em alguns casos, extirpada para preservar suas convicções. O presente estudo tem por objetivo discutir as tendências sócio-políticas do fundamentalismo religioso cristão. Para tanto, com método bibliográfico narrativo, visitamos alguns autores em nível nacional e internacional, que abordam as condições que fizeram emergir o fenômeno social do fundamentalismo religioso, sua estruturação e atuação, até suas demandas sócio-políticas. Os resultados apontam que quando se identifica e transfere qualquer responsabilidade pessoal e histórica para as forças externas, o “outro”, entendido como pessoa e/ou instituição, não podemos negar que esse processo alcança dimensões de problema social. Notamos algumas tendências como mudança de movimento religioso para ideologia acirrada, da postura de fiel para militância, do “ad intra” das religiões para demandas “ad extra”, dos altares e púlpitos para ocupações políticas.Palavras-chave: Fundamentalismo Religioso; Protestante; Católico. CHRISTIAN RELIGIOUS FUNDAMENTALISM: SOCIAL-POLITICS TENDENCIESAbstractIn the last decades the return of religion in religious fundamentalism form can be observed, using media and instruments of political pressure, because when facing the fear of questioning, fundamentalists see in the “other”, in the different, a threat to be stopped and, in some cases, extirpated top preserve their convictions.  This study aims to discuss the social-politics tendencies of the Christian religious fundamentalism. For that, with the narrative bibliographic method, we visited some authors of national and international level, that approach the conditions that caused the emergence of the religious fundamentalism social phenomenon, its structure and role, until its social-politics demand. The results show that when any personal or historical responsibility is identified and transferred to external forces, the “other”, understood as person and/or institution, we cannot deny this process reaches dimensions of social problem. We notice some tendencies such as the change of the religious movement to fierce ideology, from the posture of faithful to militancy, from “ad intra” of religions to “ad extra” demands, from the altars and pulpits to political positions.Keywords: Religious Fundamentalism; Protestant; Catholic.


2018 ◽  
pp. 13-38
Author(s):  
N. Ceramella

The article considers two versions of D. H. Lawrence’s essay The Theatre: the one which appeared in the English Review in September 1913 and the other one which Lawrence published in his first travel book Twilight in Italy (1916). The latter, considerably revised and expanded, contains a number of new observations and gives a more detailed account of Lawrence’s ideas.Lawrence brings to life the atmosphere inside and outside the theatre in Gargnano, presenting vividly the social structure of this small northern Italian town. He depicts the theatre as a multi-storey stage, combining the interpretation of the plays by Shakespeare, D’Annunzio and Ibsen with psychological portraits of the actors and a presentation of the spectators and their responses to the plays as distinct social groups.Lawrence’s views on the theatre are contextualised by his insights into cinema and its growing popularity.What makes this research original is the fact that it offers a new perspective, aiming to illustrate the social situation inside and outside the theatre whichLawrenceobserved. The author uses the material that has never been published or discussed before such as the handwritten lists of box-holders in Gargnano Theatre, which was offered to Lawrence and his wife Frieda by Mr. Pietro Comboni, and the photographs of the box-panels that decorated the theatre inLawrence’s time.


Vox Patrum ◽  
2010 ◽  
Vol 55 ◽  
pp. 361-373
Author(s):  
Maciej Kokoszko ◽  
Katarzyna Gibel-Buszewska

The present article focuses on one of the Greek delicacies mentioned by Photius and Eustathius, i.e. a Lydian import called kandaulos/kandylos. The dish was developed before the mid. VI th c. BC and named after a Lydian king, Kandaules, who ruled in the VII th c. BC. The delicacy was (via the Ionians) borrowed by the Helens and established itself in Greece sometime in the V th c. It became popular in Hellenistic times. The information we possess allow us to reconstruct two varieties of kandaulos/ kandylos. The first was savoury and consisted of cooked meat, stock, Phrygian cheese, breadcrumbs and dill (or fennel). The other included milk, lard, cheese and honey. The dish is reported to have been costly, prestigious and indicating the social status of those who would eat it. Though there is much evidence suggesting its popularity in antiquity, we lack solid evidence proving that kaunaudlos/kandylos was eaten in Byzantine times. On the other hand, Byzantine authors preserved the most detailed literary data on the delicacy. If it had not been for the Byzantine interest, our competence in the field of Greek cuisine would be even faultier.


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