Impact of managed stingless bee and western honey bee colonies on native pollinators and yield of watermelon: A comparative study

Ujjwal Layek; Arijit Kundu; Sourabh Bisui; Prakash Karmakar

doi:10.1016/j.aoas.2021.02.004

Occurrence and Phylogenetic Analysis of DWV in Stingless Bee (Apidae sp.) in China: A Case Report

Frontiers in Insect Science ◽

10.3389/finsc.2021.748074 ◽

2021 ◽

Vol 1 ◽

Author(s):

Lina Zhang ◽

Yanchun Deng ◽

Hongxia Zhao ◽

Ming Zhang ◽

Chunsheng Hou

Keyword(s):

Phylogenetic Analysis ◽

Honey Bee ◽

Honey Bees ◽

Stingless Bees ◽

Vital Role ◽

Stingless Bee ◽

Pollination Services ◽

Important Indicator ◽

Bee Colonies ◽

Bee Viruses

Honey bees play a vital role in providing pollination services for agricultural crops and wild flowering plants. However, the spillover risk of their pathogens to other pollinators or wild insects is becoming a cause for concern. There is some evidence that stingless bees can carry honey bee viruses, but little is known about the presence of honey bee viruses in stingless bees in China. Here, we investigate the occurrence of major honey bee pathogens including bacteria, fungi, and viruses in stingless bees (Apidae: sp.). Our results show that the stingless bees (Apidae: sp.) were mainly infected with DWV-A, but no DWV-B and DWV-C. Phylogenetic analysis on fragments of lp, RdRp, and VP3 of DWV-A indicated that genetic variation in VP3 might an important indicator for host-specific viruses, but it requires further study. Our results indicated that DWV-A is not only the major strain of virus currently circulating in managed bee colonies in China and globally, but in stingless bee species as a whole.

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Sporadic food competition with the African honey bee: projected impact on neotropical social bees

Journal of Tropical Ecology ◽

10.1017/s0266467400000699 ◽

1986 ◽

Vol 2 (2) ◽

pp. 97-111 ◽

Cited By ~ 69

Author(s):

David W. Roubik ◽

J. Enrique Moreno ◽

Carlos Vergara ◽

Dieter Wittmann

Keyword(s):

Honey Bee ◽

Honey Bees ◽

Resource Competition ◽

Food Competition ◽

Stingless Bee ◽

Social Bees ◽

African Honey Bee ◽

Pollen Species ◽

African Honey Bees ◽

Bee Colonies

ABSTRACTBee colonies in lowland forest in Panama were monitored for pollen and nectar harvest, pollen species utilization and nectar quality and quantity per returning forager. Despite sharing most pollen resources and nectar of the same quality with 20 introduced colonies of the African honey bee (Apis mellifera), native stingless bees of 12 species were largely unaffected by its activity. Pollen and nectar harvested by the honey bees were 10–200 times that procured by 17 stingless bee colonies. This discrepancy in total harvest and general lack of competitive effect is explained by a honey bee foraging area over 10 times that of the native bees, and apparent foraging shifts to escape competition with honey bees, thus reduced potential overlap in foraging sites.Seven cases of direct resource competition for pollen or nectar were documented, out of 31 tests. Rare periods of intensive harvest were diminished by competing African honey bees. Such harvest peaks lasted for only a few hours in 13 days of observation. Despite average duration of 4% foraging time for each species, peaks included as much as 51% total harvest. Calculations based upon colony populations, food stores and flight range show that if African honey bees persist at a density of 1 colony per km2, colonies of some stingless bee species may disappear after 10 years. Their chances of escaping food competition by taxonomic specialization on flowers seem slight.

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Identification and Treatment of European Foulbrood in Honey Bee Colonies

EDIS ◽

10.32473/edis-in1272-2019 ◽

2020 ◽

Vol 2020 (1) ◽

pp. 7

Author(s):

Catherine M. Mueller ◽

Cameron Jack ◽

Ashley N. Mortensen ◽

Jamie D. Ellis

Keyword(s):

Honey Bee ◽

Bacterial Disease ◽

American Foulbrood ◽

Fact Sheet ◽

European Foulbrood ◽

Bee Colonies ◽

Honey Bee Larvae

European foulbrood is a bacterial disease that affects Western honey bee larvae. It is a concern to beekeepers everywhere, though it is less serious than American foulbrood because it does not form spores, which means that it can be treated. This 7-page fact sheet written by Catherine M. Mueller, Cameron J. Jack, Ashley N. Mortensen, and Jamie Ellis and published by the UF/IFAS Entomology and Nematology Department describes the disease and explains how to identify it to help beekeepers manage their colonies effectively and prevent the spread of both American and European foulbrood.https://edis.ifas.ufl.edu/in1272

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Honey bee sociometry: Tracking honey bee colonies and their nest contents from swarm until death

10.1603/ice.2016.111152 ◽

2016 ◽

Author(s):

Michael L Smith

Keyword(s):

Honey Bee ◽

Bee Colonies

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NewPaenibacillus larvaebacterial isolates from honey bee colonies infected with American foulbrood disease in Egypt

Biotechnology & Biotechnological Equipment ◽

10.1080/13102818.2014.906826 ◽

2014 ◽

Vol 28 (2) ◽

pp. 271-276 ◽

Cited By ~ 7

Author(s):

Saad Hamdy Daif Masry ◽

Sanaa Soliman Kabeil ◽

Elsayed Elsayed Hafez

Keyword(s):

Honey Bee ◽

American Foulbrood ◽

American Foulbrood Disease ◽

Bee Colonies

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Pesticides in Honey Bee Colonies: establishing a baseline for real world exposure over seven years in the USA

Environmental Pollution ◽

10.1016/j.envpol.2021.116566 ◽

2021 ◽

pp. 116566

Author(s):

Kirsten S. Traynor ◽

Simone Tosi ◽

Karen Rennich ◽

Nathalie Steinhauer ◽

Eva Forsgren ◽

...

Keyword(s):

Honey Bee ◽

Real World ◽

The Usa ◽

Bee Colonies

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Mitochondrial DNA Variation in Peruvian Honey Bee (Apis mellifera L.) Populations Using the tRNAleu-cox2 Intergenic Region

Insects ◽

10.3390/insects12070641 ◽

2021 ◽

Vol 12 (7) ◽

pp. 641

Author(s):

Julio Chávez-Galarza ◽

Ruth López-Montañez ◽

Alejandra Jiménez ◽

Rubén Ferro-Mauricio ◽

Juan Oré ◽

...

Keyword(s):

Genetic Diversity ◽

Mitochondrial Dna ◽

Honey Bee ◽

Intergenic Region ◽

Current Status ◽

Dna Variation ◽

Africanized Honey Bee ◽

Dna Variations ◽

The 19Th Century ◽

Bee Colonies

Mitochondrial DNA variations of Peruvian honey bee populations were surveyed by using the tRNAleu-cox2 intergenic region. Only two studies have characterized these populations, indicating the presence of Africanized honey bee colonies in different regions of Peru and varied levels of Africanization, but the current status of its genetic diversity is unknown. A total of 512 honey bee colonies were sampled from three regions to characterize them. Our results revealed the presence of European and African haplotypes: the African haplotypes identified belong to sub-lineage AI (13) and sub-lineage AIII (03), and the European haplotypes to lineages C (06) and M (02). Of 24 haplotypes identified, 15 new sequences are reported here (11 sub-lineage AI, 2 sub-lineage AIII, and 2 lineage M). Peruvian honey bee populations presented a higher proportion from African than European haplotypes. High proportions of African haplotype were reported for Piura and Junín, unlike Lima, which showed more European haplotypes from lineage C. Few colonies belonging to lineage M would represent accidental purchase or traces of the introduction into Peru in the 19th century.

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Sublethal concentrations of clothianidin affect honey bee colony growth and hive CO2 concentration

Scientific Reports ◽

10.1038/s41598-021-83958-8 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

William G. Meikle ◽

John J. Adamczyk ◽

Milagra Weiss ◽

Janie Ross ◽

Chris Werle ◽

...

Keyword(s):

Honey Bee ◽

Pesticide Exposure ◽

Co2 Concentration ◽

Colony Growth ◽

Control Group ◽

Brood Production ◽

Weight Losses ◽

Bee Colony ◽

The Impact ◽

Bee Colonies

AbstractThe effects of agricultural pesticide exposure upon honey bee colonies is of increasing interest to beekeepers and researchers, and the impact of neonicotinoid pesticides in particular has come under intense scrutiny. To explore potential colony-level effects of a neonicotinoid pesticide at field-relevant concentrations, honey bee colonies were fed 5- and 20-ppb concentrations of clothianidin in sugar syrup while control colonies were fed unadulterated syrup. Two experiments were conducted in successive years at the same site in southern Arizona, and one in the high rainfall environment of Mississippi. Across all three experiments, adult bee masses were about 21% lower among colonies fed 20-ppb clothianidin than the untreated control group, but no effects of treatment on brood production were observed. Average daily hive weight losses per day in the 5-ppb clothianidin colonies were about 39% lower post-treatment than in the 20-ppb clothianidin colonies, indicating lower consumption and/or better foraging, but the dry weights of newly-emerged adult bees were on average 6–7% lower in the 5-ppb group compared to the other groups, suggesting a nutritional problem in the 5-ppb group. Internal hive CO2 concentration was higher on average in colonies fed 20-ppb clothianidin, which could have resulted from greater CO2 production and/or reduced ventilating activity. Hive temperature average and daily variability were not affected by clothianidin exposure but did differ significantly among trials. Clothianidin was found to be, like imidacloprid, highly stable in honey in the hive environment over several months.

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