Comparison of apiculture and winter mortality of honey bee colonies (Apis mellifera) in Austria and Czechia

Brodschneider, Robert; Brus, Jan; Danihlík, Jiří

doi:10.1016/j.agee.2019.01.002

Cited by 35 publications

(42 citation statements)

References 43 publications

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“…We assume that this fact also strongly affected the disease prevalence and risk analysis of our study. During the winters before and after our surveillance study, a much higher loss was recorded in Austria by the COLOSS-survey (2014/15: 28% [10]; 2016/17: 23% [12]). A high variation in colony losses between successive years is a phenomenon observed not only in Austria but in countries throughout whole Europe [1, 9, 10, 12, 55].…”

Section: Discussionmentioning

confidence: 94%

“…These results suggest that the relative importance of winter and summer mortality varies between different countries and climatic regions. Among others, the reasons for these differences may be found in differences between countries and climatic regions in land use [53, 54], in the amount of pesticide use [55–59], in the colonies’ population dynamics [60, 61] and in beekeeping practices[1, 2, 10, 31].…”

Section: Discussionmentioning

confidence: 99%

“…In this publication, winter loss rates from 6.0% to 17.8% were reported for different Austrian regions. These surveys have been continued yearly and demonstrate a high fluctuation in the amount of winter losses between the years (minimum: 8.1%; maximum: 28.4%; [9, 10]) and between the regions within one year [11]. Additionally, they revealed several correlations between beekeeping practices and the amount of winter losses [1, 2, 8, 9, 12].…”

Section: Introductionmentioning

confidence: 99%

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Health status of honey bee colonies (Apis mellifera) and disease-related risk factors for colony losses in Austria

et al. 2019

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Austrian beekeepers frequently suffered severe colony losses during the last decade similar to trends all over Europe. This first surveillance study aimed to describe the health status of Austrian bee colonies and to analyze the reasons for losses for both the summer and winter season in Austria. In this study 189 apiaries all over Austria were selected using a stratified random sampling approach and inspected three times between July 2015 and spring 2016 by trained bee inspectors. The inspectors made interviews with the beekeepers about their beekeeping practice and the history of the involved colonies. They inspected a total of 1596 colonies for symptoms of nine bee pests and diseases (four of them notifiable diseases) and took bee samples for varroa mite infestation analysis. The most frequently detected diseases were three brood diseases: Varroosis, Chalkbrood and Sacbrood. The notifiable bee pests Aethina tumida and Tropilaelaps spp. were not detected. During the study period 10.8% of the 1596 observed colonies died. Winter proved to be the most critical season, in which 75% of the reported colony losses happened. Risks for suffering summer losses increased significantly, when colonies were weak in July, had queen problems or a high varroa mite infestation level on bees in July. Risks for suffering winter losses increased significantly, when the colonies had a high varroa mite infestation level on bees in September, were weak in September, had a queen older than one year or the beekeeper had few years of beekeeping experience. However, the effect of a high varroa mite infestation level in September had by far the greatest potential to raise the winter losses compared to the other significant factors.

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Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Health status of honey bee colonies (Apis mellifera) and disease-related risk factors for colony losses in Austria

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“…1. Introduction In the last decade, Austrian beekeepers experienced repeatedly losses of honeybee (Apis mellifera) colonies up to 28.4% over the winter, a trend observed in many European countries [1,2]. Main reasons for these losses are weakening of the bee colonies due to the ectoparasite Varroa destructor and it's associated bee viruses [1,3,4].…”

Section: Pos(acsc2019)007mentioning

confidence: 99%

Prevalence of bee viruses in Austria in the year 2018

Morawetz¹,

Steinrigl²,

Köglberger³

et al. 2020

Proceedings of 5th Austrian Citizen Science Conference 2019 — PoS(ACSC2019)

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“…It has been observed that winter losses related to queen problems, differences in population dynamics, and treatment against the Varroa mite, differences in the number of beekeepers and colonies, etc. [36]. Generally, in the 20th century in Europe, two periods were distinguished according to the prevailing trend: an increase in the total number of bee colonies in 1965-1985, and a decrease in the number of beehives in 1986-2005 [4].…”

Section: What Actually Leads To Honey Bee Decline?mentioning

confidence: 99%

Biotic and Abiotic Factors Associated with Colonies Mortalities of Managed Honey Bee (Apis mellifera)

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Despite the presence of a large number of pollinators of flowering plants worldwide, the European honey bee, Apis melifera, plays the most important role in the pollination of a number of crops, including all vegetables, non-food crops and oilseed crops, decorative and medical plants, and others. The experience of isolated cases of complete extinction of honey bees in individual regions has shown that this phenomenon leads to a dramatic pollination crisis and reduced ability or even total inability to grow insect-pollinated crops if relying solely on native, naturally occurring pollinators. Current scientific data indicate that the global bee extinction between the Cretaceous and the Paleogene (Cretaceous-Tertiary) occurred, which led to the disappearance of flowers because they could not produce viable fruit and germinate due to lack of pollination by bees or other animals. From the Middle Ages to the present day, there has been evidence that honey bees have always overcome the adverse factors affecting them throughout the ages, after which their population has fully recovered. This fact must be treated with great care given the emergence of a new, widespread stress factor in the second half of the 20th century—intoxication of beehives with antibiotics and acaricides, and treatment of crops with pesticides. Along with acute and chronic intoxication of bees and bee products, there are other new major stressors of global importance reducing the number of bee colonies: widespread prevalence of pathogenic organisms and pest beetles, climate change and adverse climatic conditions, landscape changes and limitation of natural habitats, intensification of agricultural production, inadequate nutrition, and introduction of invasive species. This report summarizes the impact of individual negative factors on the health and behavior of bees to limit the combined effects of the above stressors.

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Comparison of apiculture and winter mortality of honey bee colonies (Apis mellifera) in Austria and Czechia

Cited by 35 publications

References 43 publications

Health status of honey bee colonies (Apis mellifera) and disease-related risk factors for colony losses in Austria

Health status of honey bee colonies (Apis mellifera) and disease-related risk factors for colony losses in Austria

Prevalence of bee viruses in Austria in the year 2018

Biotic and Abiotic Factors Associated with Colonies Mortalities of Managed Honey Bee (Apis mellifera)

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