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 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 MORPHOLOGICAL CHARACTERISTICS OF BEE POLLEN OBTAINED FROM BRASSICA NAPUS L.

2016 ◽  
Vol 18 (2) ◽  
pp. 73-78
Author(s):  
N.M. Redina ◽  
L.O. Adamchuk ◽  
N.V. Nikolaieva ◽  
J. Brindza
Keyword(s):  
Brassica Napus ◽  
Local Population ◽  
Morphological Characteristics ◽  
Morphometric Measurements ◽  
Brassica Napus L ◽  
Pollen Collection ◽  
Bee Pollen ◽  
Total Pollen ◽  
Protein Feed ◽  
Selection Of

The purpose of this work was to research the morphological characteristics of monofloral bee pollen obtained from Brassica napus L. The formulated goals were: determine the period of bee pollen receiving; implement the selection of bee pollen samples during blooming period of species; establish the monoflorality ratio of the total pollen collection; explore the morphometric indicators of bee pollen by the parameters of pollen lump, shaping level and weight. Bee pollen collection was carried out in Skvyra district of Kyiv region from local population of Apis mellifera L. families. Morphometric measurements were performed in the Institute of Biodiversity Conservation and Biosafety, Slovak University of Agriculture in Nitra. Here were determined the amount of bee pollen per one day brought by one family: from  27.04 to 03.05.16 is 50.8 ± 2.25 g; from 04.05 to 06.05.16 – 100.0 ± 3.33 g; from 07.05 to 17.05.16 – 270.7 ± 11.79 g; from 18.05 to 22.05.16 – 100.5 ± 3.028 g; from 23.05 – 25.05.16 – 39.8 ± 2.74 g. Here were defined the morphological parameters of bee pollen lump from B. napus: length is in the range from 3.40 ± 0.061 mm to 3.66 ± 0.048 mm; width is in the range from 2.88 ± 0.059 mm to 3.26 ± 0.067 mm; weight is in the range from 8.65 ± 0.317 mg to 11.31 ± 0.241 mg; shaping level of bee pollen is in the range 4.62 – 4.96 points. The total monoflorality ratio constitutes from 79.94 ± 0.619 % to 98.00 ± 0.202 %. The obtained results confirmed that the activity of bee flying depends on the blooming period and intensity of the nectar secretion, on the collection of protein feed from B. napus. Pollen lumps from Brassica napus L. bee pollen were large, dense, regular shape without splits, which specified the possibility of its use for the producing on a commercial scale.  

scholarly journals Evaluation of Yield Component Traits of Honeybee-Pollinated (Apis mellifera L.)Rapeseed Canola (Brassica napus L.)

2010 ◽  
Vol 70 (2) ◽  
pp. 309-314 ◽  
Author(s):  
Ximena Araneda Durán ◽  
Rodrigo Breve Ulloa ◽  
José Aguilera Carrillo ◽  
Jorge Lavín Contreras ◽  
Marcelo Toneatti Bastidas
Keyword(s):  
Apis Mellifera ◽  
Brassica Napus ◽  
Yield Component ◽  
Brassica Napus L ◽  
Component Traits ◽  
Yield Component Traits

scholarly journals Phenology of the specialist bee Colletes hederae and its dependence on Hedera helix L. in comparison to a generalist, Apis mellifera

2021 ◽  
Vol 15 (2) ◽  
pp. 183-195
Author(s):  
Georgia Hennessy ◽  
Cassanda Uthoff ◽  
Sema Abbas ◽  
Stefano C. Quaradeghini ◽  
Emma Stokes ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Pollen Analysis ◽  
Foraging Ecology ◽  
Large Range ◽  
Hedera Helix ◽  
Pollen Collection ◽  
Flower Visitation ◽  
Original Distribution ◽  
Highly Correlated ◽  
Floral Resource

AbstractColletes hederae,the ivy bee, (Hymenoptera: Colletidae) has undergone large range expansions in Europe in recent years, including colonising Britain in 2001 with its original distribution limited to Western mainland Europe and the Channel Islands. It is thought to specialise onHedera helixL. (Apiales: Ariliaceae), common ivy. However, some research has questioned this dependence. This study quantifies the foraging ecology ofC. hederaeto determine its relationship with ivy in Sussex. We quantified the phenology of ivy bloom,C. hederaeactivity and flower visitation, and pollen collection of females through pollen analysis. We also gathered equivalent data onApis melliferaboth as a comparison and to assess alternative pollen sources. The phenology of femaleC. hederaeactivity was highly correlated with and phonologically contained within the ivy bloom period. Pollen analysis fromC. hederaeidentified ivy pollen was 98.5% of samples, significantly more than forA. mellifera(90%). Two other plant species were identified and more common inC. hederaesamples when ivy bloom was not at its peak. Surveys of ivy flowers surrounding the aggregations found thatC. hederaewere the most common insect (26%) foraging on ivy.AlthoughC. hederaecan forage on other species, ivy was found to be an important floral resource. The results also suggest the potential for competition withA. mellifera, the only other bee present in more than small numbers onH. helixflowers, as althoughA. melliferais a generalist, in autumn it mainly forages on ivy.

scholarly journals Atividade de alguns insetos em flores de Brassica napus L. em Dourados-MS e a interação com fatores climáticos

2003 ◽  
Vol 27 (2) ◽  
pp. 382-388 ◽  
Author(s):  
Rosilda Mara Mussury ◽  
Wedson Desiderio Fernandes ◽  
Silvana de Paula Quintão Scalon
Keyword(s):  
Apis Mellifera ◽  
Brassica Napus ◽  
Brassica Napus L

Objetivou-se estudar a flutuação populacional, horários de visitação e a interação com fatores climáticos de insetos visitantes de flores de Brassica napus L. em diversos estádios fenológicos. O trabalho foi realizado em Dourados, MS, Brasil. Os insetos foram coletados com rede entomológica de 30 cm de diâmetro, a cada duas horas, no período de 7 as 17 horas. Foram coletadas as abelhas Apis mellifera, Linnaeus, 1758, Trigona sp., o vespídeo Brachygastra lecheguana (Latreille - 1824) e uma espécie de Chloropidae (Diptera), que foi a mais abundante e freqüente nas amostragens. O pico populacional da maioria dos insetos foi das 9 às 15 horas; contudo, para Trigona sp., foi entre 9 e 11 horas. A maior frequência de insetos ocorreu durante o estádio fenológico III. A análise de correlação evidenciou que a umidade relativa entre 11 horas (r = 0,57) e 13 horas (r = 0,43) favoreceu a ocorrência do díptero da família Chloropidae. Reduções nas populações de insetos do estádio III para o IV foram devidas, provavelmente, a temperaturas mais baixas, que atingiram a média de 16,1ºC.

scholarly journals Frequency and foraging behavior of Apis mellifera in two melon hybrids in Juazeiro, state of Bahia, Brazil

2014 ◽  
Vol 86 (4) ◽  
pp. 2049-2055
Author(s):  
LÚCIA H.P. KIILL ◽  
KÁTIA M.M. SIQUEIRA ◽  
COELHO MÁRCIA S. ◽  
TAMIRES A. SILVA ◽  
DIEGO R.S. GAMA ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Foraging Behavior ◽  
Floral Resources ◽  
Significant Difference ◽  
Floral Resource ◽  
Frequency Behavior ◽  
And Behavior

The study was carried out to verify if there are differences in foraging frequency and behavior of Apis mellifera in two melon hybrids (10:00 – ‘Yellow melon’ and Sancho -‘Piel de Sapo’) in the municipality of Juazeiro, state of Bahia, Brazil. The frequency, behavior of visitors and the floral resource foraged were registered from 5:00 am to 6:00 pm. There was a significant difference in the frequency of visits when comparing hydrids (F = 103.74, p <0.0001), floral type (F = 47.25, p <0.0001) and resource foraged (F = 239.14, p <0.0001). The flowers of Sancho were more attractive to A. mellifera when compared with hybrid 10:00, which may be correlated to the morphology and floral resources available. This could be solved with scaled planting, avoiding the overlapping of flowering of both types.

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