TY  - JOUR
AU  - Brodschneider, Robert
AU  - Schlagbauer, Johannes
AU  - Arakelyan, Iliyana
AU  - Ballis, Alexis
AU  - Brus, Jan
AU  - Brusbardis, Valters
AU  - Cadahía, Luis
AU  - Charrière, Jean-Daniel
AU  - Chlebo, Robert
AU  - Coffey, Mary F.
AU  - Cornelissen, Bram
AU  - da Costa, Cristina Amaro
AU  - Danneels, Ellen
AU  - Danihlík, Jiří
AU  - Dobrescu, Constantin
AU  - Evans, Garth
AU  - Fedoriak, Mariia
AU  - Forsythe, Ivan
AU  - Gregorc, Aleš
AU  - Johannesen, Jes
AU  - Kauko, Lassi
AU  - Kristiansen, Preben
AU  - Martikkala, Maritta
AU  - Martín-Hernández, Raquel
AU  - Mazur, Ewa
AU  - Mutinelli, Franco
AU  - Patalano, Solenn
AU  - Raudmets, Aivar
AU  - Simon Delso, Noa
AU  - Stevanović, Jevrosima
AU  - Uzunov, Aleksandar
AU  - Vejsnæs, Flemming
AU  - Williams, Anthony
AU  - Gray, Alison
PY  - 2023
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/2469
AB  - Beekeepers have various options to control the parasitic mite Varroa destructor in honey bee colonies, but no empirical data are available on the methods they apply in practice. We surveyed 28,409 beekeepers maintaining 507,641 colonies in 30 European countries concerning Varroa control methods. The set of 19 different Varroa diagnosis and control measures was taken from the annual COLOSS questionnaire on honey bee colony losses. The most frequent activities were monitoring of Varroa infestations, drone brood removal, various oxalic acid applications and formic acid applications. Correspondence analysis and hierarchical clustering on principal components showed that six Varroa control options (not necessarily the most used ones) significantly contribute to defining three distinctive clusters of countries in terms of Varroa control in Europe. Cluster I (eight Western European countries) is characterized by use of amitraz strips. Cluster II comprises 15 countries from Scandinavia, the Baltics, and Central-Southern Europe. This cluster is characterized by long-term formic acid treatments. Cluster III is characterized by dominant usage of amitraz fumigation and formed by seven Eastern European countries. The median number of different treatments applied per beekeeper was lowest in cluster III. Based on estimation of colony numbers in included countries, we extrapolated the proportions of colonies treated with different methods in Europe. This suggests that circa 62% of colonies in Europe are treated with amitraz, followed by oxalic acid for the next largest percentage of colonies. We discuss possible factors determining the choice of Varroa control measures in the different clusters.
PB  - Springer
T2  - Journal of Pest Science
T1  - Spatial clusters of Varroa destructor control strategies in Europe
VL  - 96
SP  - 759
EP  - 783
DO  - 10.1007/s10340-022-01523-2
ER  - 

@article{
author = "Brodschneider, Robert and Schlagbauer, Johannes and Arakelyan, Iliyana and Ballis, Alexis and Brus, Jan and Brusbardis, Valters and Cadahía, Luis and Charrière, Jean-Daniel and Chlebo, Robert and Coffey, Mary F. and Cornelissen, Bram and da Costa, Cristina Amaro and Danneels, Ellen and Danihlík, Jiří and Dobrescu, Constantin and Evans, Garth and Fedoriak, Mariia and Forsythe, Ivan and Gregorc, Aleš and Johannesen, Jes and Kauko, Lassi and Kristiansen, Preben and Martikkala, Maritta and Martín-Hernández, Raquel and Mazur, Ewa and Mutinelli, Franco and Patalano, Solenn and Raudmets, Aivar and Simon Delso, Noa and Stevanović, Jevrosima and Uzunov, Aleksandar and Vejsnæs, Flemming and Williams, Anthony and Gray, Alison",
year = "2023",
abstract = "Beekeepers have various options to control the parasitic mite Varroa destructor in honey bee colonies, but no empirical data are available on the methods they apply in practice. We surveyed 28,409 beekeepers maintaining 507,641 colonies in 30 European countries concerning Varroa control methods. The set of 19 different Varroa diagnosis and control measures was taken from the annual COLOSS questionnaire on honey bee colony losses. The most frequent activities were monitoring of Varroa infestations, drone brood removal, various oxalic acid applications and formic acid applications. Correspondence analysis and hierarchical clustering on principal components showed that six Varroa control options (not necessarily the most used ones) significantly contribute to defining three distinctive clusters of countries in terms of Varroa control in Europe. Cluster I (eight Western European countries) is characterized by use of amitraz strips. Cluster II comprises 15 countries from Scandinavia, the Baltics, and Central-Southern Europe. This cluster is characterized by long-term formic acid treatments. Cluster III is characterized by dominant usage of amitraz fumigation and formed by seven Eastern European countries. The median number of different treatments applied per beekeeper was lowest in cluster III. Based on estimation of colony numbers in included countries, we extrapolated the proportions of colonies treated with different methods in Europe. This suggests that circa 62% of colonies in Europe are treated with amitraz, followed by oxalic acid for the next largest percentage of colonies. We discuss possible factors determining the choice of Varroa control measures in the different clusters.",
publisher = "Springer",
journal = "Journal of Pest Science",
title = "Spatial clusters of Varroa destructor control strategies in Europe",
volume = "96",
pages = "759-783",
doi = "10.1007/s10340-022-01523-2"
}

Brodschneider, R., Schlagbauer, J., Arakelyan, I., Ballis, A., Brus, J., Brusbardis, V., Cadahía, L., Charrière, J., Chlebo, R., Coffey, M. F., Cornelissen, B., da Costa, C. A., Danneels, E., Danihlík, J., Dobrescu, C., Evans, G., Fedoriak, M., Forsythe, I., Gregorc, A., Johannesen, J., Kauko, L., Kristiansen, P., Martikkala, M., Martín-Hernández, R., Mazur, E., Mutinelli, F., Patalano, S., Raudmets, A., Simon Delso, N., Stevanović, J., Uzunov, A., Vejsnæs, F., Williams, A.,& Gray, A.. (2023). Spatial clusters of Varroa destructor control strategies in Europe. in Journal of Pest Science
Springer., 96, 759-783.
https://doi.org/10.1007/s10340-022-01523-2

Brodschneider R, Schlagbauer J, Arakelyan I, Ballis A, Brus J, Brusbardis V, Cadahía L, Charrière J, Chlebo R, Coffey MF, Cornelissen B, da Costa CA, Danneels E, Danihlík J, Dobrescu C, Evans G, Fedoriak M, Forsythe I, Gregorc A, Johannesen J, Kauko L, Kristiansen P, Martikkala M, Martín-Hernández R, Mazur E, Mutinelli F, Patalano S, Raudmets A, Simon Delso N, Stevanović J, Uzunov A, Vejsnæs F, Williams A, Gray A. Spatial clusters of Varroa destructor control strategies in Europe. in Journal of Pest Science. 2023;96:759-783.
doi:10.1007/s10340-022-01523-2 .

Brodschneider, Robert, Schlagbauer, Johannes, Arakelyan, Iliyana, Ballis, Alexis, Brus, Jan, Brusbardis, Valters, Cadahía, Luis, Charrière, Jean-Daniel, Chlebo, Robert, Coffey, Mary F., Cornelissen, Bram, da Costa, Cristina Amaro, Danneels, Ellen, Danihlík, Jiří, Dobrescu, Constantin, Evans, Garth, Fedoriak, Mariia, Forsythe, Ivan, Gregorc, Aleš, Johannesen, Jes, Kauko, Lassi, Kristiansen, Preben, Martikkala, Maritta, Martín-Hernández, Raquel, Mazur, Ewa, Mutinelli, Franco, Patalano, Solenn, Raudmets, Aivar, Simon Delso, Noa, Stevanović, Jevrosima, Uzunov, Aleksandar, Vejsnæs, Flemming, Williams, Anthony, Gray, Alison, "Spatial clusters of Varroa destructor control strategies in Europe" in Journal of Pest Science, 96 (2023):759-783,
https://doi.org/10.1007/s10340-022-01523-2 . .

TY  - JOUR
AU  - Gray, Alison
AU  - Adjlane, Noureddine
AU  - Arab, Alireza
AU  - Ballis, Alexis
AU  - Brusbardis, Valters
AU  - Bugeja Douglas, Adrian
AU  - Cadahía, Luis
AU  - Charrière, Jean-Daniel
AU  - Chlebo, Robert
AU  - Coffey, Mary F.
AU  - Cornelissen, Bram
AU  - Costa, Cristina Amaro da
AU  - Danneels, Ellen
AU  - Danihlík, Jiří
AU  - Dobrescu, Constantin
AU  - Evans, Garth
AU  - Fedoriak, Mariia
AU  - Forsythe, Ivan
AU  - Gregorc, Aleš
AU  - Ilieva Arakelyan, Iliyana
AU  - Johannesen, Jes
AU  - Kauko, Lassi
AU  - Kristiansen, Preben
AU  - Martikkala, Maritta
AU  - Martín-Hernández, Raquel
AU  - Mazur, Ewa
AU  - Medina-Flores, Carlos Aurelio
AU  - Mutinelli, Franco
AU  - Omar, Eslam M.
AU  - Patalano, Solenn
AU  - Raudmets, Aivar
AU  - San Martin, Gilles
AU  - Soroker, Victoria
AU  - Stahlmann-Brown, Philip
AU  - Stevanović, Jevrosima
AU  - Uzunov, Aleksandar
AU  - Vejsnaes, Flemming
AU  - Williams, Anthony
AU  - Brodschneider, Robert
PY  - 2023
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/2504
AB  - 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 < 0.001). Migration was also highly significant (p < 0.001), with lower loss rates for operations migrating their colonies in the previous season. A higher proportion of new queens reduced the risk of colony winter loss (p < 0.001), suggesting that more queen replacement is better. All three factors, operation size, migration and proportion of young queens, were also included in a multivariable main effects quasi-binomial GLM and all three remained highly significant (p < 0.001). Detailed results for each country and overall are given in a table, and a map shows relative risks of winter loss at the regional level.
T2  - Journal of Apicultural Research
T1  - 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
VL  - 62
IS  - 2
SP  - 204
EP  - 210
DO  - 10.1080/00218839.2022.2113329
ER  - 

@article{
author = "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 Stevanović, Jevrosima and Uzunov, Aleksandar and Vejsnaes, Flemming and Williams, Anthony and Brodschneider, Robert",
year = "2023",
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 < 0.001). Migration was also highly significant (p < 0.001), with lower loss rates for operations migrating their colonies in the previous season. A higher proportion of new queens reduced the risk of colony winter loss (p < 0.001), suggesting that more queen replacement is better. All three factors, operation size, migration and proportion of young queens, were also included in a multivariable main effects quasi-binomial GLM and all three remained highly significant (p < 0.001). Detailed results for each country and overall are given in a table, and a map shows relative risks of winter loss at the regional level.",
journal = "Journal of Apicultural Research",
title = "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",
volume = "62",
number = "2",
pages = "204-210",
doi = "10.1080/00218839.2022.2113329"
}

Gray, A., Adjlane, N., Arab, A., Ballis, A., Brusbardis, V., Bugeja Douglas, A., Cadahía, L., Charrière, J., Chlebo, R., Coffey, M. F., Cornelissen, B., Costa, C. A. d., Danneels, E., Danihlík, J., Dobrescu, C., Evans, G., Fedoriak, M., Forsythe, I., Gregorc, A., Ilieva Arakelyan, I., Johannesen, J., Kauko, L., Kristiansen, P., Martikkala, M., Martín-Hernández, R., Mazur, E., Medina-Flores, C. A., Mutinelli, F., Omar, E. M., Patalano, S., Raudmets, A., San Martin, G., Soroker, V., Stahlmann-Brown, P., Stevanović, J., Uzunov, A., Vejsnaes, F., Williams, A.,& Brodschneider, R.. (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. in Journal of Apicultural Research, 62(2), 204-210.
https://doi.org/10.1080/00218839.2022.2113329

Gray A, Adjlane N, Arab A, Ballis A, Brusbardis V, Bugeja Douglas A, Cadahía L, Charrière J, Chlebo R, Coffey MF, Cornelissen B, Costa CAD, Danneels E, Danihlík J, Dobrescu C, Evans G, Fedoriak M, Forsythe I, Gregorc A, Ilieva Arakelyan I, Johannesen J, Kauko L, Kristiansen P, Martikkala M, Martín-Hernández R, Mazur E, Medina-Flores CA, Mutinelli F, Omar EM, Patalano S, Raudmets A, San Martin G, Soroker V, Stahlmann-Brown P, Stevanović J, Uzunov A, Vejsnaes F, Williams A, Brodschneider R. 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. in Journal of Apicultural Research. 2023;62(2):204-210.
doi:10.1080/00218839.2022.2113329 .

Gray, Alison, 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, Stevanović, Jevrosima, Uzunov, Aleksandar, Vejsnaes, Flemming, Williams, Anthony, Brodschneider, Robert, "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" in Journal of Apicultural Research, 62, no. 2 (2023):204-210,
https://doi.org/10.1080/00218839.2022.2113329 . .

TY  - DATA
AU  - Brodschneider, Robert
AU  - Schlagbauer, Johannes
AU  - Arakelyan, Iliyana
AU  - Ballis, Alexis
AU  - Brus, Jan
AU  - Brusbardis, Valters
AU  - Cadahía, Luis
AU  - Charrière, Jean-Daniel
AU  - Chlebo, Robert
AU  - Coffey, Mary F.
AU  - Cornelissen, Bram
AU  - da Costa, Cristina Amaro
AU  - Danneels, Ellen
AU  - Danihlík, Jiří
AU  - Dobrescu, Constantin
AU  - Evans, Garth
AU  - Fedoriak, Mariia
AU  - Forsythe, Ivan
AU  - Gregorc, Aleš
AU  - Johannesen, Jes
AU  - Kauko, Lassi
AU  - Kristiansen, Preben
AU  - Martikkala, Maritta
AU  - Martín-Hernández, Raquel
AU  - Mazur, Ewa
AU  - Mutinelli, Franco
AU  - Patalano, Solenn
AU  - Raudmets, Aivar
AU  - Simon Delso, Noa
AU  - Stevanović, Jevrosima
AU  - Uzunov, Aleksandar
AU  - Vejsnæs, Flemming
AU  - Williams, Anthony
AU  - Gray, Alison
PY  - 2022
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/2470
AB  - Table S1. Utilized packages of the statistical software R version 4.0.4.
PB  - Springer
T2  - Journal of Pest Science
T1  - Supplementary information for the article: Brodschneider, R.; Schlagbauer, J.; Arakelyan, I.; Ballis, A.; Brus, J.; Brusbardis, V.; Cadahía, L.; Charrière, J.-D.; Chlebo, R.; Coffey, M. F.; Cornelissen, B.; da Costa, C. A.; Danneels, E.; Danihlík, J.; Dobrescu, C.; Evans, G.; Fedoriak, M.; Forsythe, I.; Gregorc, A.; Johannesen, J.; Kauko, L.; Kristiansen, P.; Martikkala, M.; Martín-Hernández, R.; Mazur, E.; Mutinelli, F.; Patalano, S.; Raudmets, A.; Simon Delso, N.; Stevanovic, J.; Uzunov, A.; Vejsnæs, F.; Williams, A.; Gray, A. Spatial Clusters of Varroa Destructor Control Strategies in Europe. J Pest Sci 2022. https://doi.org/10.1007/s10340-022-01523-2.
UR  - https://hdl.handle.net/21.15107/rcub_veterinar_2470
ER  - 

@misc{
author = "Brodschneider, Robert and Schlagbauer, Johannes and Arakelyan, Iliyana and Ballis, Alexis and Brus, Jan and Brusbardis, Valters and Cadahía, Luis and Charrière, Jean-Daniel and Chlebo, Robert and Coffey, Mary F. and Cornelissen, Bram and da Costa, Cristina Amaro and Danneels, Ellen and Danihlík, Jiří and Dobrescu, Constantin and Evans, Garth and Fedoriak, Mariia and Forsythe, Ivan and Gregorc, Aleš and Johannesen, Jes and Kauko, Lassi and Kristiansen, Preben and Martikkala, Maritta and Martín-Hernández, Raquel and Mazur, Ewa and Mutinelli, Franco and Patalano, Solenn and Raudmets, Aivar and Simon Delso, Noa and Stevanović, Jevrosima and Uzunov, Aleksandar and Vejsnæs, Flemming and Williams, Anthony and Gray, Alison",
year = "2022",
abstract = "Table S1. Utilized packages of the statistical software R version 4.0.4.",
publisher = "Springer",
journal = "Journal of Pest Science",
title = "Supplementary information for the article: Brodschneider, R.; Schlagbauer, J.; Arakelyan, I.; Ballis, A.; Brus, J.; Brusbardis, V.; Cadahía, L.; Charrière, J.-D.; Chlebo, R.; Coffey, M. F.; Cornelissen, B.; da Costa, C. A.; Danneels, E.; Danihlík, J.; Dobrescu, C.; Evans, G.; Fedoriak, M.; Forsythe, I.; Gregorc, A.; Johannesen, J.; Kauko, L.; Kristiansen, P.; Martikkala, M.; Martín-Hernández, R.; Mazur, E.; Mutinelli, F.; Patalano, S.; Raudmets, A.; Simon Delso, N.; Stevanovic, J.; Uzunov, A.; Vejsnæs, F.; Williams, A.; Gray, A. Spatial Clusters of Varroa Destructor Control Strategies in Europe. J Pest Sci 2022. https://doi.org/10.1007/s10340-022-01523-2.",
url = "https://hdl.handle.net/21.15107/rcub_veterinar_2470"
}

Brodschneider, R., Schlagbauer, J., Arakelyan, I., Ballis, A., Brus, J., Brusbardis, V., Cadahía, L., Charrière, J., Chlebo, R., Coffey, M. F., Cornelissen, B., da Costa, C. A., Danneels, E., Danihlík, J., Dobrescu, C., Evans, G., Fedoriak, M., Forsythe, I., Gregorc, A., Johannesen, J., Kauko, L., Kristiansen, P., Martikkala, M., Martín-Hernández, R., Mazur, E., Mutinelli, F., Patalano, S., Raudmets, A., Simon Delso, N., Stevanović, J., Uzunov, A., Vejsnæs, F., Williams, A.,& Gray, A.. (2022). Supplementary information for the article: Brodschneider, R.; Schlagbauer, J.; Arakelyan, I.; Ballis, A.; Brus, J.; Brusbardis, V.; Cadahía, L.; Charrière, J.-D.; Chlebo, R.; Coffey, M. F.; Cornelissen, B.; da Costa, C. A.; Danneels, E.; Danihlík, J.; Dobrescu, C.; Evans, G.; Fedoriak, M.; Forsythe, I.; Gregorc, A.; Johannesen, J.; Kauko, L.; Kristiansen, P.; Martikkala, M.; Martín-Hernández, R.; Mazur, E.; Mutinelli, F.; Patalano, S.; Raudmets, A.; Simon Delso, N.; Stevanovic, J.; Uzunov, A.; Vejsnæs, F.; Williams, A.; Gray, A. Spatial Clusters of Varroa Destructor Control Strategies in Europe. J Pest Sci 2022. https://doi.org/10.1007/s10340-022-01523-2.. in Journal of Pest Science
Springer..
https://hdl.handle.net/21.15107/rcub_veterinar_2470

Brodschneider R, Schlagbauer J, Arakelyan I, Ballis A, Brus J, Brusbardis V, Cadahía L, Charrière J, Chlebo R, Coffey MF, Cornelissen B, da Costa CA, Danneels E, Danihlík J, Dobrescu C, Evans G, Fedoriak M, Forsythe I, Gregorc A, Johannesen J, Kauko L, Kristiansen P, Martikkala M, Martín-Hernández R, Mazur E, Mutinelli F, Patalano S, Raudmets A, Simon Delso N, Stevanović J, Uzunov A, Vejsnæs F, Williams A, Gray A. Supplementary information for the article: Brodschneider, R.; Schlagbauer, J.; Arakelyan, I.; Ballis, A.; Brus, J.; Brusbardis, V.; Cadahía, L.; Charrière, J.-D.; Chlebo, R.; Coffey, M. F.; Cornelissen, B.; da Costa, C. A.; Danneels, E.; Danihlík, J.; Dobrescu, C.; Evans, G.; Fedoriak, M.; Forsythe, I.; Gregorc, A.; Johannesen, J.; Kauko, L.; Kristiansen, P.; Martikkala, M.; Martín-Hernández, R.; Mazur, E.; Mutinelli, F.; Patalano, S.; Raudmets, A.; Simon Delso, N.; Stevanovic, J.; Uzunov, A.; Vejsnæs, F.; Williams, A.; Gray, A. Spatial Clusters of Varroa Destructor Control Strategies in Europe. J Pest Sci 2022. https://doi.org/10.1007/s10340-022-01523-2.. in Journal of Pest Science. 2022;.
https://hdl.handle.net/21.15107/rcub_veterinar_2470 .

Brodschneider, Robert, Schlagbauer, Johannes, Arakelyan, Iliyana, Ballis, Alexis, Brus, Jan, Brusbardis, Valters, Cadahía, Luis, Charrière, Jean-Daniel, Chlebo, Robert, Coffey, Mary F., Cornelissen, Bram, da Costa, Cristina Amaro, Danneels, Ellen, Danihlík, Jiří, Dobrescu, Constantin, Evans, Garth, Fedoriak, Mariia, Forsythe, Ivan, Gregorc, Aleš, Johannesen, Jes, Kauko, Lassi, Kristiansen, Preben, Martikkala, Maritta, Martín-Hernández, Raquel, Mazur, Ewa, Mutinelli, Franco, Patalano, Solenn, Raudmets, Aivar, Simon Delso, Noa, Stevanović, Jevrosima, Uzunov, Aleksandar, Vejsnæs, Flemming, Williams, Anthony, Gray, Alison, "Supplementary information for the article: Brodschneider, R.; Schlagbauer, J.; Arakelyan, I.; Ballis, A.; Brus, J.; Brusbardis, V.; Cadahía, L.; Charrière, J.-D.; Chlebo, R.; Coffey, M. F.; Cornelissen, B.; da Costa, C. A.; Danneels, E.; Danihlík, J.; Dobrescu, C.; Evans, G.; Fedoriak, M.; Forsythe, I.; Gregorc, A.; Johannesen, J.; Kauko, L.; Kristiansen, P.; Martikkala, M.; Martín-Hernández, R.; Mazur, E.; Mutinelli, F.; Patalano, S.; Raudmets, A.; Simon Delso, N.; Stevanovic, J.; Uzunov, A.; Vejsnæs, F.; Williams, A.; Gray, A. Spatial Clusters of Varroa Destructor Control Strategies in Europe. J Pest Sci 2022. https://doi.org/10.1007/s10340-022-01523-2." in Journal of Pest Science (2022),
https://hdl.handle.net/21.15107/rcub_veterinar_2470 .

TY  - JOUR
AU  - Gray, Alison
AU  - Adjlane, Noureddine
AU  - Arab, Arab
AU  - Ballis, Alexis
AU  - Brusbardis, Valters
AU  - Charrière, Jean-Daniel
AU  - Chlebo, Robert
AU  - Coffey, Mary F.
AU  - Cornelissen, Bram
AU  - Amaro da Costa, Cristina
AU  - Dahle, Bjørn
AU  - Danihlík, Jiří
AU  - Dražić, Marica Maja
AU  - Evans, Garth
AU  - Fedoriak, Mariia
AU  - Forsythe, Ivan
AU  - Gajda, Anna
AU  - de Graaf, Dirk C.
AU  - Gregorc, Aleš
AU  - Ilieva, Iliyana
AU  - Johannesen, Jes
AU  - Kauko, Lassi
AU  - Kristiansen, Preben
AU  - Martikkala, Maritta
AU  - Martín-Hernández, Raquel
AU  - Medina-Flores, Carlos Aurelio
AU  - Mutinelli, Franco
AU  - Patalano, Solenn
AU  - Raudmets, Aivar
AU  - Martin, Gilles San
AU  - Soroker, Victoria
AU  - Stevanović, Jevrosima
AU  - Uzunov, Aleksandar
AU  - Vejsnaes, Flemming
AU  - Williams, Anthony
AU  - Zammit-Mangion, Marion
AU  - Brodschneider, Robert
PY  - 2020
UR  - https://vet-erinar.vet.bg.ac.rs/handle/123456789/1983
AB  - This article presents managed honey bee colony loss rates over winter 2018/19 resulting from using the standardised COLOSS questionnaire in 35 countries (31 in Europe). In total, 28,629 beekeepers supplying valid loss data wintered 738,233 colonies, and reported 29,912 (4.1%, 95% confidence interval (CI) 4.0–4.1%) colonies with unsolvable queen problems, 79,146 (10.7%, 95% CI 10.5–10.9%) dead colonies after winter and 13,895 colonies (1.9%, 95% CI 1.8–2.0%) lost through natural disaster. This gave an overall colony winter loss rate of 16.7% (95% CI 16.4–16.9%), varying greatly between countries, from 5.8% to 32.0%. We modelled the risk of loss as a dead/empty colony or from unresolvable queen problems, and found that, overall, larger beekeeping operations with more than 150 colonies experienced significantly lower losses (p ' 0.001), consistent with earlier studies. Additionally, beekeepers included in this survey who did not migrate their colonies at least once in 2018 had significantly lower losses than those migrating (p ' 0.001). The percentage of new queens from 2018 in wintered colonies was also examined as a potential risk factor. The percentage of colonies going into winter with a new queen was estimated as 55.0% over all countries. Higher percentages of young queens corresponded to lower overall losses (excluding losses from natural disaster), but also lower losses from unresolvable queen problems, and lower losses from winter mortality (p ' 0.001). Detailed results for each country and overall are given in a table, and a map shows relative risks of winter loss at regional level.
PB  - Taylor and Francis Ltd.
T2  - Journal of Apicultural Research
T1  - Honey bee colony winter loss rates for 35 countries participating in the COLOSS survey for winter 2018–2019, and the effects of a new queen on the risk of colony winter loss
VL  - 59
IS  - 5
SP  - 744
EP  - 751
DO  - 10.1080/00218839.2020.1797272
ER  - 

@article{
author = "Gray, Alison and Adjlane, Noureddine and Arab, Arab and Ballis, Alexis and Brusbardis, Valters and Charrière, Jean-Daniel and Chlebo, Robert and Coffey, Mary F. and Cornelissen, Bram and Amaro da Costa, Cristina and Dahle, Bjørn and Danihlík, Jiří and Dražić, Marica Maja and Evans, Garth and Fedoriak, Mariia and Forsythe, Ivan and Gajda, Anna and de Graaf, Dirk C. and Gregorc, Aleš and Ilieva, Iliyana and Johannesen, Jes and Kauko, Lassi and Kristiansen, Preben and Martikkala, Maritta and Martín-Hernández, Raquel and Medina-Flores, Carlos Aurelio and Mutinelli, Franco and Patalano, Solenn and Raudmets, Aivar and Martin, Gilles San and Soroker, Victoria and Stevanović, Jevrosima and Uzunov, Aleksandar and Vejsnaes, Flemming and Williams, Anthony and Zammit-Mangion, Marion and Brodschneider, Robert",
year = "2020",
abstract = "This article presents managed honey bee colony loss rates over winter 2018/19 resulting from using the standardised COLOSS questionnaire in 35 countries (31 in Europe). In total, 28,629 beekeepers supplying valid loss data wintered 738,233 colonies, and reported 29,912 (4.1%, 95% confidence interval (CI) 4.0–4.1%) colonies with unsolvable queen problems, 79,146 (10.7%, 95% CI 10.5–10.9%) dead colonies after winter and 13,895 colonies (1.9%, 95% CI 1.8–2.0%) lost through natural disaster. This gave an overall colony winter loss rate of 16.7% (95% CI 16.4–16.9%), varying greatly between countries, from 5.8% to 32.0%. We modelled the risk of loss as a dead/empty colony or from unresolvable queen problems, and found that, overall, larger beekeeping operations with more than 150 colonies experienced significantly lower losses (p ' 0.001), consistent with earlier studies. Additionally, beekeepers included in this survey who did not migrate their colonies at least once in 2018 had significantly lower losses than those migrating (p ' 0.001). The percentage of new queens from 2018 in wintered colonies was also examined as a potential risk factor. The percentage of colonies going into winter with a new queen was estimated as 55.0% over all countries. Higher percentages of young queens corresponded to lower overall losses (excluding losses from natural disaster), but also lower losses from unresolvable queen problems, and lower losses from winter mortality (p ' 0.001). Detailed results for each country and overall are given in a table, and a map shows relative risks of winter loss at regional level.",
publisher = "Taylor and Francis Ltd.",
journal = "Journal of Apicultural Research",
title = "Honey bee colony winter loss rates for 35 countries participating in the COLOSS survey for winter 2018–2019, and the effects of a new queen on the risk of colony winter loss",
volume = "59",
number = "5",
pages = "744-751",
doi = "10.1080/00218839.2020.1797272"
}

Gray, A., Adjlane, N., Arab, A., Ballis, A., Brusbardis, V., Charrière, J., Chlebo, R., Coffey, M. F., Cornelissen, B., Amaro da Costa, C., Dahle, B., Danihlík, J., Dražić, M. M., Evans, G., Fedoriak, M., Forsythe, I., Gajda, A., de Graaf, D. C., Gregorc, A., Ilieva, I., Johannesen, J., Kauko, L., Kristiansen, P., Martikkala, M., Martín-Hernández, R., Medina-Flores, C. A., Mutinelli, F., Patalano, S., Raudmets, A., Martin, G. S., Soroker, V., Stevanović, J., Uzunov, A., Vejsnaes, F., Williams, A., Zammit-Mangion, M.,& Brodschneider, R.. (2020). Honey bee colony winter loss rates for 35 countries participating in the COLOSS survey for winter 2018–2019, and the effects of a new queen on the risk of colony winter loss. in Journal of Apicultural Research
Taylor and Francis Ltd.., 59(5), 744-751.
https://doi.org/10.1080/00218839.2020.1797272

Gray A, Adjlane N, Arab A, Ballis A, Brusbardis V, Charrière J, Chlebo R, Coffey MF, Cornelissen B, Amaro da Costa C, Dahle B, Danihlík J, Dražić MM, Evans G, Fedoriak M, Forsythe I, Gajda A, de Graaf DC, Gregorc A, Ilieva I, Johannesen J, Kauko L, Kristiansen P, Martikkala M, Martín-Hernández R, Medina-Flores CA, Mutinelli F, Patalano S, Raudmets A, Martin GS, Soroker V, Stevanović J, Uzunov A, Vejsnaes F, Williams A, Zammit-Mangion M, Brodschneider R. Honey bee colony winter loss rates for 35 countries participating in the COLOSS survey for winter 2018–2019, and the effects of a new queen on the risk of colony winter loss. in Journal of Apicultural Research. 2020;59(5):744-751.
doi:10.1080/00218839.2020.1797272 .

Gray, Alison, Adjlane, Noureddine, Arab, Arab, Ballis, Alexis, Brusbardis, Valters, Charrière, Jean-Daniel, Chlebo, Robert, Coffey, Mary F., Cornelissen, Bram, Amaro da Costa, Cristina, Dahle, Bjørn, Danihlík, Jiří, Dražić, Marica Maja, Evans, Garth, Fedoriak, Mariia, Forsythe, Ivan, Gajda, Anna, de Graaf, Dirk C., Gregorc, Aleš, Ilieva, Iliyana, Johannesen, Jes, Kauko, Lassi, Kristiansen, Preben, Martikkala, Maritta, Martín-Hernández, Raquel, Medina-Flores, Carlos Aurelio, Mutinelli, Franco, Patalano, Solenn, Raudmets, Aivar, Martin, Gilles San, Soroker, Victoria, Stevanović, Jevrosima, Uzunov, Aleksandar, Vejsnaes, Flemming, Williams, Anthony, Zammit-Mangion, Marion, Brodschneider, Robert, "Honey bee colony winter loss rates for 35 countries participating in the COLOSS survey for winter 2018–2019, and the effects of a new queen on the risk of colony winter loss" in Journal of Apicultural Research, 59, no. 5 (2020):744-751,
https://doi.org/10.1080/00218839.2020.1797272 . .