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 Foraging Preference of Apis cerana F. and Apis mellifera L. to Broccoli under Caged and Open Conditions in Chitwan

2005 ◽  
Vol 26 ◽  
pp. 167-168 ◽  
Author(s):  
FR Devkota ◽  
RB Thapa
Keyword(s):  
Apis Mellifera ◽  
Key Words ◽  
Foraging Behavior ◽  
Apis Cerana ◽  
Foraging Preference

A study was conducted to evaluate foraging behavior of Apis cerana F. and A. mellifera L. in broccoli blooms under caged and open conditions in Chitwan, Nepal during 1999-2000. The study showed that both the bee species preferred open plot for foraging and A. cerana F. foraged significantly (P < 0.05) higher number of broccoli flowers (an average of 11.39 and 12.11 flowers per minute) as compared to A. mellifera L. (an average of 9.03 and 10.89 flowers per minute) under caged and open conditions, respectively. The number of bees foraging per plant was not significantly different, showing broccoli bloom equally preferable to both honeybee species. Key words: Apis cerana F., A. mellifera L., foraging, broccoli blooms, open and caged plots J. Inst. Agric. Anim. Sci. 26:167-168 (2005)

scholarly journals Food collection behavior of Apis mellifera and Tetragonisca angustula bees in Brassica napus L. in response to different environmental covariates

2018 ◽  
Author(s):  
Simone Cristina Camargo ◽  
Regina Conceição Garcia ◽  
Newton Tavares Escocard de Oliveira ◽  
Edmar Soares de Vasconcelos ◽  
Douglas Galhardo ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Brassica Napus ◽  
Relative Humidity ◽  
Foraging Behavior ◽  
Linear Models ◽  
Collection Site ◽  
Brassica Napus L ◽  
Pollen Collection ◽  
Tetragonisca Angustula ◽  
Floral Resource

AbstractThe objective was to evaluate the behavior of Apis mellifera and Tetragonisca angustula bees in pollination tests in Brassica napus at different times of the day, temperature and relative humidity. The experimental design was completely with eight treatments and two pollination tests, repeated in five randomized blocks during seven days of observations for two years, totaling 560 records. During the visits, the following parameters were recorded: collected resources, nectar collection site, time spent on flower, number of flowers visited in one minute, pollen load in the pollen basket and bee contact with anthers and stigma. Data were analyzed using generalized linear models. The number of Africanized and T. angustula bees collecting nectar increased with the passage of time throughout the day and with the decrease of relative humidity. The same was observed for nectar collection in both nectaries. The proportion of bees collecting pollen was higher in the morning hours, as well as when there was an increase in temperature for the two species of bees. Foraging behavior of A. mellifera in B. napus crop favored its pollination, indifferent of which collected floral resource as they came into contact with anthers and stigma. T. angustula bees performed pollination only during pollen collection. Pollination of B. napus was more effective in the warmer hours of the morning, when more of both species of bees carried out pollen collection. Due to its foraging behavior, A. mellifera had greater efficiency for pollination of B. napus; however, the association with T. angustula may potentiate the benefits generated for the crop by cross-pollination.

scholarly journals Foraging Behavior of Native Honeybee (Apis Cerana F.) and European Honeybee (Apis Mellifera L.) on Flowers of Common Buckwheat (Fagopyrum Esculentum M.) in Chitwan, Nepal

2016 ◽  
Vol 4 (2) ◽  
pp. 236-239
Author(s):  
L.N. Aryal ◽  
R.B. Thapa ◽  
S. Tiwari ◽  
N.K. Chaudhary
Keyword(s):  
Apis Mellifera ◽  
Foraging Behavior ◽  
Apis Cerana ◽  
Total Duration ◽  
Fagopyrum Esculentum ◽  
Common Buckwheat ◽  
Fagopyrum Esculentum Moench ◽  
European Honeybee

This paper is the findings of the research conducted on foraging behavior of Native honeybee (Apis cerana F.) and European honeybee (Apis mellifera L.) on flowering buckwheat (Fagopyrum esculentum Moench) inside the cage during November 2012 to 2013 at Meghauli, Chitwan, Nepal.  Apis cerana F. started their foraging activities early in the morning (8.24 ± 0.50 AM) and ceased late in the evening (5.18 ± 0.20 PM) in comparison to Apis mellifera L., which started foraging at 8.29 ± 0.50 AM and ceased at 4.56 ± 0.50 PM. The total duration of foraging per day was more in Apis cerana F. than Apis mellifera L., i.e. 8.34 ± 0.90 hours per day in Apis cerana F. and 8.25 ± 0.90 hours per day in Apis mellifera L. That means A. cerana F. was 1.8% more efficient on foraging duration than A. mellifera L. Similarly, the number of Apis cerana F. and Apis mellifera L. entering into the hive in five minutes was the highest (51.69 ± 0.45 in Apis cerana F., and 62.81 ± 0.45 in Apis mellifera L.) at 12 Noon while lowest (11.24 ± 0.11 in Apis cerana F., and 5.89 ± 0.11 in Apis mellifera L.) at 5 PM and no activity was started at 8 AM. Likewise, the number of Apis cerana F. and Apis mellifera L. bees outgoing from the hive in five minutes was the highest (42.67 ± 0.98 in Apis cerana F. and 48.71 ± 0.98 in Apis mellifera L.) at 12 Noon and the lowest (4.31 ± 0.07 in Apis cerana F. and 2.39 ± 0.07 in Apis mellifera L.) at 5 PM. The number of buckwheat flower visited by Apis cerana F. was highest at 10 AM while by Apis mellifera L. it was highest at 12 Noon. But, for both species of honeybees it was lowest at 4 PM. There was more time spent by Apis mellifera L. (2.37 seconds) per flower than Apis cerana F. (1.95 seconds) during floral visit. So, Apis cerana F is efficient in foraging and hence in pollination on buckwheat than Apis mellifera L suggesting buckwheat cultivation along with bee farming especially Apis cerana F.Int J Appl Sci Biotechnol, Vol 4(2): 236-239

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.

scholarly journals Dynamics of Nosema apis and Nosema ceranae Co-Infection Seasonally in Honey Bee (Apis mellifera L.) Colonies

2019 ◽  
Vol 63 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Asli Özkırım ◽  
Aygün Schiesser ◽  
Nevіn Keskin
Keyword(s):  
Apis Mellifera ◽  
Apis Cerana ◽  
Winter Season ◽  
Nosema Ceranae ◽  
Molecular Techniques ◽  
Winter Period ◽  
Nosema Apis ◽  
Infection Level ◽  
Seasonal Infection ◽  
Asian Honeybee

AbstractNosema apis is a pathogen spesific for the European honeybee, Apis mellifera L., while Nosema ceranae is specific for the Asian honeybee, Apis cerana. Turkey provides different environmental and host conditions for both Nosema species. The aim of the study is to determine the dynamic of N. cerenae and N. apis seasonal infection. A number of samples were collected from different apiaries between 2009-2016 years. The samples were kept at −20°C in the laboratory. Light microscopy was used for spore counting and molecular techniques were used to identify the Nosema species. The results showed that winter season had an impact on the type of Nosema as well as on infection rates. The number of N. ceranae spores decreases significantly at low temperatures (≤ 5°C). The winter period was found to be the main factor affecting nosema infection level and dominancy of Nosema ceranae. Furthermore, co-infection of both species is an indicator of the dynamics of N. apis and N. ceranae. This study suggests, that there is a dynamic prevalence among the Nosema species depending of the average winter temperature and not a replacement of N. apis by N. ceranae.

scholarly journals Daily distribution of pollen collection by honeybee foragers (Apis mellifera L.)

2012 ◽  
Vol 59 (1) ◽  
pp. 271-278
Author(s):  
Joanna Klepacz-Baniak ◽  
Krystyna Czekońska
Keyword(s):  
Apis Mellifera ◽  
Pollen Collection ◽  
Pollen Loads

In May, July and September pollen loads samples were collected from 20 honeybee colonies, during 4 days at fixed hours. The pollen loads were classified into botanical taxons. Pollen loads of every examined taxon were collected during the whole day. The daily dynamics of pollen collection depends more on time of the day than temperature.

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