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United States Department of Agriculture

Agricultural Research Service

GLORIA D. DEGRANDI-HOFFMAN

Research Leader


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Honey bee (Apis mellifera) intracolonial genetic diversity influences worker nutritional status - (Peer Reviewed Journal) - (25-Jul-14)
Population dynamics of Varroa destructor (Acari: Varroidae) in commercial honey bee colonies and implications for control - (Peer Reviewed Journal)
Hoffman, G.D., Ahumada, F., Curry, R., Probasco, G., Schantz, L. 2014. Population dynamics of Varroa destructor (Acari: Varroidae) in commercial honey bee colonies and implications for control. Experimental and Applied Acarology. DOI 10.1007/s10493-014-9821-z.
Bigger is better: honey bee colonies as distributed information-gathering systems Reprint Icon - (Peer Reviewed Journal)
Donaldson-Matasci, M., Hoffman, G.D., Dornhaus, A. 2013. Bigger is better: honey bee colonies as distributed information-gathering systems. Journal of Animal Behavior. 85(3), 585-592.
The effects of pesticides on queen rearing and virus titers in honey bees (Apis mellifera L.) - (Peer Reviewed Journal)
Hoffman, G.D., Chen, Y., Simonds, R. 2013. The effects of pesticides on queen rearing and virus titers in honey bees (Apis mellifera L.). Insects. 4(1), 71-89.doi:10.3390/insects4010071. http://www.mdpi.com/2075-4450/4/1/71
Are agrochemicals present in high fructose corn syrup fed to honey bees (Apis mellifera L.)? - (Research Notes) - (23-Aug-12)
The effects of beta acids from hops (Humulus lupulus L.)on mortality of Varroa destructor (Acari: Varroidae) - (Peer Reviewed Journal)
Hoffman, G.D., Ahumada, F., Probasco, G., Shantz, L. 2012. The effects of beta acids from hops (Humulus lupulus L.)on mortality of Varroa destructor (Acari: Varroidae). Experimental and Applied Acarology. 58:407-421. DOI:10.1007/s10493-012-9593-2.
A comparison of bee bread made by Africanized and European honey bees (Apis mellifera) and its effects on hemolymph protein titers - (Peer Reviewed Journal)
Hoffman, G.D., Eckholm, B., Huang, M.H. 2012. A comparison of bee bread made by Africanized and European honey bees (Apis mellifera) and its effects on hemolymph protein titers. Apidologie. 44:52-63 DOI:10.1007/s13592-012-0154-9.
New meta-analysis tools reveal common transciptional regulatory basis for multiple determinants of behavior - (Peer Reviewed Journal) - (23-Apr-12)
Viral dynamics of persistent and acute virus infections in honey bees - (Peer Reviewed Journal)
Di Prisco, G., Zhang, X., Pennacchio, F., Caprio, E., Li, J., Evans, J.D., Hoffman, G.D., Hamilton, M.C., Chen, Y. 2011. Viral dynamics of persistent and acute virus infections in honey bees. Viruses. 3:2425-2441.
Heptanone Gels Using an Aryl Glycolipid - (Abstract Only) - (10-Aug-11)
An emerging paradigm of colony health: Microbial balance of the honey bee and hive (Apis mellifera) - (Peer Reviewed Journal)
Anderson, K.E., Eckholm, B., Mott, B.M., Sheehan, T.H., Hoffman, G.D. 2011. An emerging paradigm of colony health: Microbial balance of the honey bee and hive (Apis mellifera). Insectes Sociaux. 58:431-444. DOI 10.1007/s00040-011-0194-6.
Introduction - (Book / Chapter)
Hoffman, G.D. 2012. Introduction. In: Sammataro, D. and Yoder, J., editors. Honey Bee Colony Health: Challenges and Sustainable Solutions. Boca Raton, FL. CRC Press. p. xv-xviii.
Honey Bee Health: The Potential Role of Microbes - (Book / Chapter)
Hoffman, G.D., Eckholm, B., Anderson, K.E. 2012. Honey bee health: The potential role of microbes. In: Sammataro, D. and Yoder, J., editors. Honey Bee Colony Health: Challenges and Sustainable Solutions. Boca Raton, FL. CRC Press. p. 1-12.
The Critical Transition Temperature (CTT) of Chalkbrood Fungi Ascosphaera apis and Ascosphaera aggregata, and its Significance for Disease Incidence - (Book / Chapter)
Yoder, J.A., Heydinger, D.J., Hedges, B.Z., Sammataro, D., Hoffman, G.D. 2012. The critical transition temperature (CTT) of chalkbrood fungi Ascosphaera apis and Ascosphaera aggregata, and its significance for disease incidence. In: Sammataro, D. and Yoder, J., editors. Honey Bee Colony Health: Challenges and Sustainable Solutions. Boca Raton, FL. CRC Press. p. 131-134.
Differences Among Commonly Sprayed Orchard Fungicides in Targeting the Beneficial Fungi Associated with Honey Bee Colony and Bee Bread Provisions (In Vitro) - (Book / Chapter)
Yoder, J.A., Hedges, B.Z., Heydinger, D.J., Sammataro, D., Hoffman, G.D. 2012. Differences among commonly sprayed orchard fungicides in targeting the beneficial fungi associated with honey bee colony and bee bread provisions (in vitro). In: Sammataro, D. and Yoder, J., editors. Honey Bee Colony Health: Challenges and Sustainable Solutions. Boca Raton, FL. CRC Press. p. 181-192.
Impact of Orchard Fungicide Spraying on Lowering the Amount of Symbiotic Fungi in Bee Bread and Its Implications for Reduced Colony Resistance - (Book / Chapter)
Yoder, J.A., Condon, M.R., Heydinger, D.J., Hedges, B.Z., Sammataro, D., Finley-Short, J.V., Hoffman, G.D., Olson, E. 2012. Fungicides reduce symbiotic fungi in bee bread and the beneficial fungi in colonies. In: Sammataro, D. and Yoder, J., editors. Honey Bee Colony Health: Challenges and Sustainable Solutions. Boca Raton, FL. CRC Press. p. 193-214.
Molecular gels-based controlled release devices for pheromones - (Peer Reviewed Journal)
Jadhav, S.R., Chiou, B., Wood, D.F., Hoffman, G.D., Glenn, G.M., John, G. 2011. Molecular gels-based controlled release devices for pheromones. Soft Materials. 7:864-867. DOI: 10.1039/c0sm00878h.
Why Supplemental Protein Feeding Can Help Reduce Colony Losses - (Trade Journal)
Hoffman, G.D., Chen, Y. 2010. Why Supplemental Protein Feeding Can Help Reduce Colony Losses. American Bee Journal. 150:1157-1160.
Intracolonial genetic diversity in honey bee (Apis mellifera) colonies increases pollen foraging efficiency - (Peer Reviewed Journal)
Eckholm, B.J., Anderson, K.E., Weiss, M., Hoffman, G.D. 2011. Intracolonial genetic diversity in honey bee (Apis mellifera) colonies increases pollen foraging efficiency. Behavioral Ecology-Sociobiology. 65:1037-1044.
Pollination Ecology: Overview of Pollination and the Foraging Behavior of Honey Bees - (Book / Chapter) - (20-Mar-10)
The Effect of Diet on Protein Concentration, Hypopharyngeal Gland Development and Virus Load in Worker Honey ees (Apis mellifera L.) Reprint Icon - (Peer Reviewed Journal)
Hoffman, G.D., Chen, Y., Huang, E., Huang, M.H. 2010. The effect of diet on protein concentration, hypopharyngeal gland development and virus load in worker honey bees (Apis mellifera L.). Journal of Insect Physiology, 56:1184-1191. doi:10.1016/j.jinsphys.2010.03.017
Mating frequencies of Africanized honey bees in the southwestern United States - (Peer Reviewed Journal)
Tarpy, D., Caren, J.R., Delaney, D.A., Sammataro, D., Finley, J.V., Loper, G., Hoffman, G.D. 2010. Mating frequencies of Africanized honey bees in the southwestern United States. Journal of Apiculture Research. Vol. 49(4):302-310.
Honey Bee Aggression Supports a Link Between Gene Regulation and Behavioral Evolution Reprint Icon - (Proceedings)
Alaux, C., Sinha, S., Hasadsri, L., Hunt, G.J., Guzman-Novoa, E., Hoffman, G.D., Uribe-Rubio, J., Rodriguez-Zas, S., Robinson, G.E. 2009. Honey bee aggression supports a link between gene regulation and behavioral evolution. Proceedings of the National Academy of Sciences, 106(36): 15400-15405. doi:10.1073pnas.0907043106.
Africanized honey bees are slowere learners than their European counterparts Reprint Icon - (Peer Reviewed Journal)
Couvillon, M.J., Hoffman, G.D., Gronenberg, W. 2010. Africanized honey bees are slower learners than their European counterparts. Naturwissenschaften. 97:153-160.
The Importance of Microbes in Nutrition and Health of Honey Bee Colonies Part-3: Where Do We Go From Here? - (Trade Journal)
Hoffman, G.D., Vreeland, R., Sammataro, D., Alarcon Jr, R.N. 2009. The Importance of Microbes in Nutrition and Health of Honey Bee Colonies Part-3: Where Do We Go From Here?. American Bee Journal 149:755-757.
The Importance of Microbes in Nutrition and Health of Honey Bee Colonies Part-2: Factors Affecting the Microbial Community in Honey Bee Colonies - (Trade Journal)
Hoffman, G.D., Alarcon Jr, R.N., Sammataro, D. 2009. The Importance of Microbes in Nutrition and Health of Honey Bee Colonies Part-2: Factors Affecting the Microbial Community in Honey Bee Colonies. American Bee Journal 149(6):583-584.
The Importance of Microbes in Nutrition and Health of Honey Bee Colonies - (Trade Journal)
Hoffman, G.D., Sammataro, D., Alarcon Jr, R.N. 2009. The Importance of Microbes in Nutrition and Health of Honey Bee Colonies. American Bee Journal 149:583-584.
Fungicides Can Reduce Pollination Potential - (Other)
Alarcon Jr, R.N., Hoffman, G.D., Wardell, G. 2009. Fungicides Can Reduce Pollination Potential. Western Farm Press. Vol 31(7) pp. 17 & 21.
Comparisons of the queen volatile compounds of instrumentally inseminated versus naturally mated honey bee (Apis mellifera) queens - (Peer Reviewed Journal)
Huang, M.H., Hoffman, G.D., Le Blanc, B.W. 2009. Comparisons of the queen volatile compounds of instrumentally inseminated versus naturally mated honey bee (Apis mellifera) queens. Apidologie 40:464-471.
Cyclodextrins as Carriers of Monterpenes into the Hemolymph of the Honey Bee (Apis mellifera) for Integrated Pest Management - (Peer Reviewed Journal)
Le Blanc, B.W., Boue, S.M., Hoffman, G.D., Deeby, T.A., Mccready, H.D., Loeffelmann, K.L. 2008. Cyclodextrins as Carriers of Monterpenes into the Hemolymph of the Honey Bee (Apis mellifera) for Integrated Pest Management. Journal of Agricultural and Food Chemistry 56(18), 8565-8573.
Comparisons of Pollen Substitute Diets for Honey bees: Consumprion Rates by Colonies and Effects on Brood and Adult Populations - (Other)
Hoffman, G.D., Wardell, G., Ahumada-Secura, F., Rinderer, T.E., Danka, R.G., Pettis, J.S. 2008. Comparisons of Pollen Substitute Diets for Honey bees: Consumprion Rates by Colonies and Effects on Brood and Adult Populations. Journal of Apicultural Research 47:265-270.
Brains and brain components in African and European honey bees (Hymenoptera: Apidae) - a volumetric comparison - (Peer Reviewed Journal)
Hoffman, G.D., Lucas, T., Gronenberg, W., Caseman, D.L. 2008. Brains and brain components in African and European honey bees (Hymenoptera: Apidae) - a volumetric comparison. Journal of Apicultural Research 47:281-285.
Outcrossed Cottonseed and Adventitious Bt Plants in Arizona Refuges - (Peer Reviewed Journal)
Hueberger, S., Yafuso, C, DeGrandi-Hoffman, G., Tabashnik, B. 2008. Outcrossed cottonseed and adventitious Bt plants in Arizona refuges. Environmental Biosafety Research 7:87-96.
Queen Replacement in African and European Honey Bee Colonies with and without Afterswarms - (Peer Reviewed Journal)
Schneider, S.S., DeGrandi-Hoffman, G. 2008. Queen replacement in African and European honey bee colonies with and without afterswarms. Insect Sociaux 55:79-85.
The Influence of Season and Volatile Compounds on Acceptance Rates of Introduced European Honey Bee (Apis Mellifera L.) Queens into European and Africanized Colonies - (Peer Reviewed Journal)
DeGrandi-Hoffman, G., Gilley, D., Hooper, J. The influence of season and volatile compounds on the acceptance of introduced European honey bee (Apis mellifera) Queens into European and Africanized colonies. Apidologie 38:230-237. 2007.
Effects of Honey Bee (Hymenoptera: Apidae) Foraging on Seed Set in Self-Fertile Sunflowers (Helianthus Annuus L.) - (Peer Reviewed Journal)
DeGrandi-Hoffman, G., Chambers, M. 2006. Effects of Honey Bee (Hymenoptera: Apidae) Foraging on Seed Set in Self-fertile Sunflowers (Helianthus annuus L.). Environ. Entomol. 35(4): 1103-1108.
The African Honey Bee: a Case Study of a Biological Invasion - (Trade Journal)
Schneider, S., DeGrandi-Hoffman, G., Smith, D., Tarpy, D. The African Honey Bee: A Case Study of a Biological Invasion. Bee Culture. 2006. Vol. 134, No. 4. 21-24.
Permeability of starch gel matrices and select films to solvent vapors - (Peer Reviewed Journal)
Glenn, G.M., Klamczynski, A., Ludvik, C.N., Shey, J., Imam, S.H., Chiou, B., Mchugh, T.H., Orts, W.J., Wood, D.F., Hoffman, G.D., Offeman, R.D. 2006. Permeability of starch gel matrices and select films to solvent vapors. Journal of Agricultural and Food Chemistry. 54(9):3297-3304.
Volatile Compounds Produced by Live European Honey Bee (Apis Mellifera L.) Queens - (Peer Reviewed Journal)
Gilley, D.C., DeGrandi-Hoffman, G., Hooper, J.E. Volatile compounds produced by live European honey bees (Apis mellifera L.) queens. J. Insect. Physiol. 52: 520-527. 2006.
The Population Dynamics of Varroa Mites in Honey Bee Colonies: Part 1 - the Varroa Pop Program - (Trade Journal)
DeGrandi-Hoffman, G., Curry, R. The population dynamics of Varroa mites in honey bee colonies: Part I - The VARROAPOP program. Amer. Bee J. 2005. Vol. 145(7):592-595.
The Population Dynamics of Varroa Mites in Honey Bee Colonies: Part 2 - What the Computer Model Reveals - (Trade Journal)
DeGrandi-Hoffman, G., Curry. R. Simulated population dynamics of Varroa mites in honey bee colonies: Part II - What the VARROAPOP model reveals. Amer. Bee J. 2005. Vol. 145(8): 629-632.
The Population Dynamics of Varroa Mites in Honey Bee Colonies: Part 3 - How Beekeeping Practices Could Affect Varroa Populations - (Trade Journal)
DeGrandi-Hoffman, G., Curry, R. The population dynamics of Varroa mites in honey bee colonies: Part III - How beekeeping practices could affect Varroa populations. Amer. Bee J. 2005. Vol. 145(9):709-710.
Mechanisms That Favor the Continuity of the African Honeybee Genome in the Americas - (Proceedings)
Schneider, S.S., DeGrandi-Hoffman, G. Mechanisms that favor the continuity of the African honeybee genome in the Americas. Proc. 8th IBRA Intl. Conf. Tropical Bees and VI Encontro sobre Abelhas, Ribeirao Preto, SP, Brazil. 2004. pp. 232-240.
Description of An Intermorph Between a Worker and Queen in African Honey Bees Apis Mellifera Scutellata (Hymenoptera: Apidae) - (Peer Reviewed Journal)
DeGrandi-Hoffman, G., Chambers, M., Hooper, J.E., Schneider, S.S. Description of an intermorph between a worker and queen in African honey bees Apis mellifera scutellata (Hymenoptera: Apidae). Ann. Entomol. Soc. Am. 2004. 97:1299-1305.
Description and Validation of a Mathematical Model of Varroa Mite (Varroa Destructor) and Honeybee (Apis Mellifera L.) Population Dynamics - (Peer Reviewed Journal)
DeGrandi-Hoffman, G., Curry, R. Description and Validation of a Mathematical Model of Varroa Mite (Varroa destructor) and Honeybee (Apis mellifera L.) Population Dynamics. 2004. Internat. J. Acarol. 2004. Vol. 30, No. 3.
Nest Usurpation by African Honey Bees in the Southwestern U.S. - (Peer Reviewed Journal)
Schneider, S.S., Deeby, T., Gilley, D.C. and DeGrandi-Hoffman, G. Seasonal nest usurpation of European colonies by African swarms in Arizona, USA. Insect. Soc. 51:359-364. 2004.
Testing a Combination of Control Tactics to Manage the Varroa Destructor Mite(acari: Varroidae) Levels in Honey Bee (Hymenoptera: Apidae) Colonies - (Peer Reviewed Journal)
Sammataro, D., DeGrandi-Hoffman, G., Ostiguy, O., Wardell, G., Finley, J. Testing a combination of control strategies to manage Varroa destructor (Acari: Varroidae) population levels in honey bee (Hymenoptera: Apidae) colonies. 2004. Inter. J. Acarology 30:71-76.
The Influence of Hybridization Between African and European Honey Bees, Apis Mellifera, on Asymmetries in Wing Size and Shape - (Peer Reviewed Journal)
Schneider, S. S., Leamy, L. J., Lewis, L. A., DeGrandi-Hoffman, G. The influence of hybridization between African and European honeybees, Apis mellifera, on asymmetries in wing size and shape. 2003. Evolution 57(10). pp. 2350-2364.
Patriline Composition of Worker Populations in Honey Bee (Apis Mellifera L.) Colonies Headed by Queens Inseminated with African and European Drones - (Peer Reviewed Journal)
DeGrandi-Hoffman, G., Tarpy, D. A., Schneider, S. S. Patriline composition of worker populations in honeybee (Apis mellifera) colonies headed by queens inseminated with semen from African and European drones. 2003. Apidologie 34, 111-120.
The African Honey Bee: Factors Contributing to a Successful Biological Invasion - (Peer Reviewed Journal)
Schneider, S. S., DeGrandi-Hoffman, G., Smith, D. R. The African honey bee: Factors contributing to a successful biological invasion. Ann. Rev. Entomol. 2004. 49:351-376.
The Influence of Paternity on Virgin Queen Success in Hybrid Colonies of European and African Honey Bees Apis Mellifera - (Peer Reviewed Journal)
Schneider, S. S., DeGrandi-Hoffman, G. The influence of paternity on virgin queen success in hybrid colonies of European and African honeybees. 2003. Animal Behaviour 65:883-892.
The Influence of Worker Behavior and Paternity on the Development and Emergence of Honey Bee Queens - (Peer Reviewed Journal)
Schneider, S. S., DeGrandi-Hoffman, G. The influence of worker behavior and paternity on the development and emergence of honey bee queens. 2002. Insectes Sociaux 49, 306-314.
Factors Influencing the Selection of Recipients by Workers Performing Vibration Signals in Colonies of the Honey Bee Apis Mellifera - (Peer Reviewed Journal)
Lewis, L. A., Schneider, S. S., DeGrandi-Hoffman, G. Factors influencing the selection of recipients by workers performing vibration signals in colonies of the honeybee, Apis mellifera. 2002. Animal Behaviour 63, 361-367.
Honey Bee Queen Production: Tight Genes Or Too Much Food? - (Popular Publication) - (03-Dec-00)
Insights on Bemisia Population Dynamics from Simulations with the Biocontrol-Whitefly Model - (Abstract Only) - (01-Aug-97)
Biocontrol-Whitefly: a Whitefly, Parasite, and Predator Population Dynamicsmodel - (Peer Reviewed Journal) - (01-Jun-96)
Last Modified: 2/6/2014
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