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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
Year:
2022
Source of publication :
Journal of Apicultural Research
Authors :
Soroker, Victoria
;
.
Volume :
Co-Authors:

Alison Gray

Noureddine Adjlane

Alireza Arab

Alexis Ballis

Valters Brusbardis

Adrian Bugeja Douglas

Luis Cadahía

Jean-Daniel Charrière

Robert Chlebo

Mary F. Coffey

Bram Cornelissen

Cristina Amaro da Costa

Ellen Danneels

Jiří Danihlík

Constantin Dobrescu

Garth Evans

Mariia Fedoriak

Ivan Forsythe

Aleš Gregorc

Iliyana Ilieva Arakelyan

Jes Johannesen

Lassi Kauko

Preben Kristiansen

Maritta Martikkala

Raquel Martín-Hernández

Ewa Mazur

Carlos Aurelio Medina-Flores

Franco Mutinelli

Eslam M. Omar

Solenn Patalano

Aivar Raudmets

Gilles San Martin

Victoria Soroker

Philip Stahlmann-Brown

Jevrosima Stevanovic

Aleksandar Uzunov

Flemming Vejsnaes

Anthony Williams

Robert Brodschneider

 

Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
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.

Note:
Related Files :
Apis mellifera
citizen science
monitoring surveys
mortality
Risk Factors
Show More
Related Content
More details
DOI :
10.1080/00218839.2022.2113329
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
62489
Last updated date:
06/11/2022 16:48
Creation date:
06/11/2022 16:48
You may also be interested in
Scientific Publication
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

Alison Gray

Noureddine Adjlane

Alireza Arab

Alexis Ballis

Valters Brusbardis

Adrian Bugeja Douglas

Luis Cadahía

Jean-Daniel Charrière

Robert Chlebo

Mary F. Coffey

Bram Cornelissen

Cristina Amaro da Costa

Ellen Danneels

Jiří Danihlík

Constantin Dobrescu

Garth Evans

Mariia Fedoriak

Ivan Forsythe

Aleš Gregorc

Iliyana Ilieva Arakelyan

Jes Johannesen

Lassi Kauko

Preben Kristiansen

Maritta Martikkala

Raquel Martín-Hernández

Ewa Mazur

Carlos Aurelio Medina-Flores

Franco Mutinelli

Eslam M. Omar

Solenn Patalano

Aivar Raudmets

Gilles San Martin

Victoria Soroker

Philip Stahlmann-Brown

Jevrosima Stevanovic

Aleksandar Uzunov

Flemming Vejsnaes

Anthony Williams

Robert Brodschneider

 

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

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.

Scientific Publication
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