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Now showing items 1-5 of 38

A comparison of honey bee-collected pollen from working agricultural lands using light microscopy and ITS metabarcoding

Smart, M. D.; Cornman, R. S.; Iwanowicz, D. D.; McDermott-Kubeczko, M.; Pettis, J. S.; Spivak, M. S.; Otto, C.R.V. (Oxford, 2017)
Taxonomic identification of pollen has historically been accomplished via light microscopy but requires specialized knowledge and reference collections, particularly when identification to lower taxonomic levels is necessary. ...

Effects of neonicotinoid imidacloprid exposure on bumble bee (Hymenoptera: Apidae) queen survival and nest initiation

Wu-Smart, Judy ; Spivak, Marla  (Oxford, 2017)
Neonicotinoids are highly toxic to insects and may systemically translocate to nectar and pollen of plants where foraging bees may become exposed. Exposure to neonicotinoids can induce detrimental sublethal effects on ...

Standard methods for Apis mellifera propolis research

Bankova, Vassya; Bertelli, Davide; Borba, Renata; Conti, Bruno José; Barbosa da Silva Cunha, Ildenize; Danert, Carolina; Eberlin, Marcos Nogueira; Falcão, Soraia I; Isla, María Inés; Nieva Moreno, María Inés; Papotti, Giulia; Popova, Milena; Santiago, Karina Basso; Salas, Ana; Sawaya, Alexandra Christine Helena Frankland; Schwab, Nicolas Vilczaki; Sforcin, José Maurício; Simone-Finstrom, Michael; Spivak, Marla; Trusheva, Boryana; Vilas-Boas, Miguel; Wilson, Michael; Zampini, Catiana (Taylor and Francis, 2016)
Propolis is one of the most fascinating honey bee (Apis mellifera L.) products. It is a plant derived product that bees produce from resins that they collect from different plant organs and with which they mix beeswax. ...

3-Acyl dihydroflavonols from poplar resins collected by honey bees are active against the bee pathogens Paenibacillus larvae and Ascosphaera apis

Wilson, Michael B.; Pawlus, Alison D.; Brinkman, Doug; Gardner, Gary; Hegeman, Adrian D.; Spivak, Marla; Cohen, Jerry D. (Elsevier, 2017)
Honey bees, Apis mellifera, collect antimicrobial plant resins from the environment and deposit them in their nests as propolis. This behavior is of practical concern to beekeepers since the presence of propolis in the ...

Propolis counteracts some threats to honey bee health

Simone-Finstrom, Michael; Borba, Renata S.; Wilson, Michael; Spivak, Marla (MDPI, 2017)
Honey bees (Apis mellifera) are constantly dealing with threats from pathogens, pests, pesticides and poor nutrition. It is critically important to understand how honey bees’ natural immune responses (individual immunity) ...