Occurrence of 9-oxodec-trans-2-enoic acid in queens of Apis dorsata, Apis cerana, and Apis mellifera

1970 ◽  
Vol 16 (7) ◽  
pp. 1437-1441 ◽  
Author(s):  
D.A. Shearer ◽  
R. Boch ◽  
R.A. Morse ◽  
F.M. Laigo
Keyword(s):  
Apis Mellifera ◽  
Apis Cerana ◽  
Enoic Acid ◽  
Apis Dorsata

scholarly journals The bees (Apocrita: Hymenoptera) of Dhaka city, Bangladesh

2019 ◽  
Vol 5 (1) ◽  
pp. 113-120
Author(s):  
T Akter ◽  
S Akther ◽  
S Sultana ◽  
JA Jhorna ◽  
S Begum
Keyword(s):  
Apis Mellifera ◽  
Total Population ◽  
Apis Cerana ◽  
The Other ◽  
External Morphology ◽  
Apis Florea ◽  
Wing Venation ◽  
Apis Dorsata ◽  
Dhaka City ◽  
Park Area

A total of 11 bee species belonging to two families Apidae and Megachilidae was identified. The identified species were Apis dorsata, Apis mellifera, Apis cerana, Apis florea, Ceratina binghami, Ceratina nigrolateralis, Xylocopa aestuans, Xylocopa violacea, Xylocopa latipes, Megachile disjuncta and Megachile umbripennis. The species were identified by using standard taxonomic keys. Details of external morphology like head, wing venation, antennal type, physical coloration etc. were used in the keys. The bees were collected from three areas of Dhaka city - Curzon Hall, Ramna Park and Sher-e-Bangla Agricultural University from October 2017 to May 2018. During the study period it was observed that the richness of bee species was found maximum during the month of October (31.01%) and was more abundant in Curzon Hall and Sher-e-Bangla Agricultural University area than the Ramna park area. The bee A. dorsata was the most abundant (about 36.23% of the total population) and M. umbripennis was the least abundant (about 1.74% of the total population) species in the study areas. It was also observed that bee species were more attracted to the yellow flowers specially Cosmos sulphureus and Tecoma stans than the other coloured flowers. J. Biodivers. Conserv. Bioresour. Manag. 2019, 5(1): 113-120

scholarly journals Resisting majesty: Apis cerana, has lower antennal sensitivity and decreased attraction to queen mandibular pheromone than Apis mellifera

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Shihao Dong ◽  
Ping Wen ◽  
Qi Zhang ◽  
Xinyu Li ◽  
Ken Tan ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Apis Cerana ◽  
Decanoic Acid ◽  
Enoic Acid ◽  
Queen Mandibular Pheromone ◽  
Social Bees ◽  
Specific Sensitivity ◽  
Evolutionarily Conserved ◽  
Ovarian Activation ◽  
Species Specific

Abstract In highly social bees, queen mandibular pheromone (QMP) is vital for colony life. Both Apis cerana (Ac) and Apis mellifera (Am) share an evolutionarily conserved set of QMP compounds: (E)-9-oxodec-2-enoic acid (9-ODA), (E)-9-hydroxydec-2-enoic acid (9-HDA), (E)-10-hydroxy-dec-2-enoic acid (10-HDA), 10-hydroxy-decanoic acid (10-HDAA), and methyl p–hydroxybenzoate (HOB) found at similar levels. However, evidence suggests there may be species-specific sensitivity differences to QMP compounds because Ac workers have higher levels of ovarian activation than Am workers. Using electroantennograms, we found species-specific sensitivity differences for a blend of the major QMP compounds and three individual compounds (9-HDA, 10-HDAA, and 10-HDA). As predicted, Am was more sensitive than Ac in all cases (1.3- to 2.7- fold higher responses). There were also species differences in worker retinue attraction to three compounds (9-HDA, HOB, and 10-HDA). In all significantly different cases, Am workers were 4.5- to 6.2-fold more strongly attracted than Ac workers were. Thus, Ac workers responded less strongly to QMP than Am workers, and 9-HDA and 10-HDA consistently elicited stronger antennal and retinue formation responses.

scholarly journals Diversity and Foraging Behaviour of Insect Pollinators on Murraya koenigii (L. ) (Rutaceae)

2020 ◽  
pp. 15-19
Author(s):  
M. M. Dhore
Keyword(s):  
Apis Mellifera ◽  
Foraging Behaviour ◽  
Apis Cerana ◽  
Early Morning ◽  
Insect Species ◽  
Apis Florea ◽  
Apis Dorsata ◽  
Murraya Koenigii ◽  
Insect Pollinators ◽  
Apis Cerana Indica

The present studies on diversity and foraging behaviour of insect pollinators on Murraya koenigii (L. )was carried out during March - April 2019 at Akot town situated in Akola district of Maharashtra. Ten insect species visited Murraya koenigii flowers viz. Five hymenopterans and five lepidopterons. This study revealed that hymenopterans were found to be the most dominant (97. 5%) flower visitors, followed by lepidopteron insects (2. 5%). Among these Apis florea, Apis cerana indica, and Apis dorsata were found to be the most frequent pollinators. The result on foraging behaviour of bees Apis florea started visiting Murrya koenigii flowers in early morning at 06. 00 hrs, Apis cerana indica at 6. 30 hrs and ceased their activity later in the evening. Apis mellifera and Apis dorsata , they started visiting the flowers from 7. 00hrs. Maximum foraging was by Apis florea (12 flowers /minute)followed by Apis cerana indica (10 flowers/minute )and Apis dorsata (9-10 flowers /minute). Time spent per flower was the maximum with lepidopteron (25 sec. /flower) followed by Moth (15 sec. /flower)

scholarly journals Comparative Foraging Behavior of Apis Cerana F. and Apis Mellifera L. in Rapeseed under Cage Condition in Chitwan, Nepal

2014 ◽  
Vol 2 (4) ◽  
pp. 483-487
Author(s):  
Rameshwor Pudasaini ◽  
Resham Bahadur Thapa
Keyword(s):  
Apis Mellifera ◽  
Foraging Behavior ◽  
Apis Cerana ◽  
Lower Number ◽  
Pollen Collection ◽  
Cage Condition

An experiment was conducted to determine the foraging behavior of Apis mellifera L. and Apis cerana F. in rapeseed under cage condition in Chitwan, Nepal during 2012-2013. This experiment showed that Apis cerana F. foraged extra 42 minute per day as compared to Apis mellifera L. Apis cerana F. were more attracted to nectar, whereas Apis mellifera L. were more attracted to pollen collection throughout the day. The activities, in into hives and out from hives, for both species were recorded more at 2:00 pm and least at 8:00 am. The highest in-out were observed at 2:00 pm on both species as Apis mellifera L. 44.33 bees entered into hives and 49.66 bees went out of hives, whereas lower number of Apis cerana F. 43.66 bees entered into hives and 48.16 bees were out of hives. Apis mellifera L. collect 1.22:1 and 0.41:1 pollen nectar ratio at 10:00 am and 4:00 am whereas at same hours Apis cerana collect 1.16:1 and 0.30:1 pollen nectar ratio. Apis cerana F. foraged significantly higher number of rapeseed flowers and plants as compared to Apis mellifera L. under caged condition. It shows that Apis cerana F. was more efficient pollinator as compared to Apis mellifera L. under caged condition. DOI: http://dx.doi.org/10.3126/ijasbt.v2i4.11238Int J Appl Sci Biotechnol, Vol. 2(4): 483-487  

scholarly journals INFESTAÇÃO NATURAL DE Varroa jacobsoni EM Apis mellifera scutellata (HYMENOPTERA: APIDAE)

2000 ◽  
Vol 5 (1) ◽  
Author(s):  
A. PEGORARO ◽  
E. M. MARQUES ◽  
A.C. NETO ◽  
E.C. COSTA
Keyword(s):  
Apis Mellifera ◽  
Apis Cerana ◽  
Varroa Jacobsoni ◽  
Friedman Test ◽  
Apis Mellifera Scutellata ◽  
Biological Relationship ◽  
Natural Infestation

Varroa jacobsoni foi descrita em 1904 por Oldenans em Java em cria de Apis cerana. O nível de infestação com V. jacobsoni mede indiretamente o grau de tolerância da A. mellifera à V. jacobsoni. O estudo foi conduzido no Município de Mandirituba-PR. Os enxames foram capturados com caixa iscas. A percentagem de infestação V. jacobsoni foi resistrada mensalmente. Aplicando-se o teste de Friedman e usando-se o rank de cada colônia, separou-se os grupos de colônias homogêneas. A tendência sazonal foi demostrada com representação gráfica. O experimento foi delineado segundo blocos inteiramente casualizados. Em todas as amostras foi encontrado o ácaro V. jacobsoni. Diferenças significativas entre as colônias foram observadas. Na população de Apis mellifera scutellata existem três grupos homogêneos de colônias quanto ao nível de infestação com esse ácaro. O inverno é a época onde o grau de infestação com V. jacobsoni é mais elevado. Natural infestation of Apis mellifera scutellata (Hymenoptera; Apidae) by Varroa jacobsoni (Mesostigmata; Varroidae) Abstract Infestation by Varroa jacobsoni in an offspring of Apis cerana was first described as early as 1904 in Java. Since the level of infestation by V. jacobsoni may be an indirect procedure to measure the Apis mellifera scutellata tolerance degree towards it, the present research was carried out in order to evaluate such biological relationship between host and parasite and its implication in the Apis mellifera scutellata productivity. This study was carried out at Mandirituba, Paraná, Brazil. The swarms were captured with bait boxes. The percentage of V. jacobsoni infestation was established monthly. According to the Friedman test ant through the rank, homogeneous colonies were single out. The experiment has been delineated as entirely randomized blocks.

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