Honey bee colony loss rates in 37 countries using the COLOSS survey for winter 2019–2020 : the combined effects of operation size, migration and queen replacement

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Gray, Alison and Adjlane, Noureddine and Arab, Alireza and Ballis, Alexis and Brusbardis, Valters and Bugeja Douglas, Adrian and Cadahía, Luis and Charrière, Jean-Daniel and Chlebo, Robert and Coffey, Mary F. and Cornelissen, Bram and Costa, Cristina Amaro da and Danneels, Ellen and Danihlík, Jiří and Dobrescu, Constantin and Evans, Garth and Fedoriak, Mariia and Forsythe, Ivan and Gregorc, Aleš and Ilieva Arakelyan, Iliyana and Johannesen, Jes and Kauko, Lassi and Kristiansen, Preben and Martikkala, Maritta and Martín-Hernández, Raquel and Mazur, Ewa and Medina-Flores, Carlos Aurelio and Mutinelli, Franco and Omar, Eslam M. and Patalano, Solenn and Raudmets, Aivar and San Martin, Gilles and Soroker, Victoria and Stahlmann-Brown, Philip and Stevanovic, Jevrosima and Uzunov, Aleksandar and Vejsnaes, Flemming and Williams, Anthony and Brodschneider, Robert (2023) Honey bee colony loss rates in 37 countries using the COLOSS survey for winter 2019–2020 : the combined effects of operation size, migration and queen replacement. Journal of Apicultural Research, 62 (2). pp. 204-210. ISSN 2078-6913) (https://doi.org/10.1080/00218839.2022.2113329)

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Abstract

This article presents managed honey bee colony loss rates over winter 2019/20 resulting from using the standardised COLOSS questionnaire in 37 countries. Six countries were from outside Europe, including, for the first time in this series of articles, New Zealand. The 30,491 beekeepers outside New Zealand reported 4.5% of colonies with unsolvable queen problems, 11.1% of colonies dead after winter and 2.6% lost through natural disaster. This gave an overall colony winter loss rate of 18.1%, higher than in the previous year. The winter loss rates varied greatly between countries, from 7.4% to 36.5%. 3216 beekeepers from New Zealand managing 297,345 colonies reported 10.5% losses for their 2019 winter (six months earlier than for other, Northern Hemisphere, countries). We modelled the risk of loss as a dead/empty colony or from unresolvable queen problems, for all countries except New Zealand. Overall, larger beekeeping operations with more than 50 colonies experienced significantly lower losses (p

ORCID iDs

Gray, Alison ORCID logoORCID: https://orcid.org/0000-0002-6273-0637, Adjlane, Noureddine, Arab, Alireza, Ballis, Alexis, Brusbardis, Valters, Bugeja Douglas, Adrian, Cadahía, Luis, Charrière, Jean-Daniel, Chlebo, Robert, Coffey, Mary F., Cornelissen, Bram, Costa, Cristina Amaro da, Danneels, Ellen, Danihlík, Jiří, Dobrescu, Constantin, Evans, Garth, Fedoriak, Mariia, Forsythe, Ivan, Gregorc, Aleš, Ilieva Arakelyan, Iliyana, Johannesen, Jes, Kauko, Lassi, Kristiansen, Preben, Martikkala, Maritta, Martín-Hernández, Raquel, Mazur, Ewa, Medina-Flores, Carlos Aurelio, Mutinelli, Franco, Omar, Eslam M., Patalano, Solenn, Raudmets, Aivar, San Martin, Gilles, Soroker, Victoria, Stahlmann-Brown, Philip, Stevanovic, Jevrosima, Uzunov, Aleksandar, Vejsnaes, Flemming, Williams, Anthony and Brodschneider, Robert;
CORE (COnnecting REpositories)