2006
DOI: 10.1051/apido:2006031
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Survival of mite infested (Varroa destructor) honey bee (Apis mellifera) colonies in a Nordic climate

Abstract: -An isolated honey bee population (N = 150) was established on the southern tip of Gotland, an island in the Baltic sea. After infestation with 36 to 89 Varroa destructor mites per colony, they were unmanaged and allowed to swarm. For over six years colonies were monitored for swarming, winter losses, infestation rate in the fall, and bee population size in the spring. Winter mortality rate decreased from 76% and 57% in the third and fourth years, to 13% and 19% in the fifth and sixth years. Swarming rates inc… Show more

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Cited by 176 publications
(189 citation statements)
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“…This is supported by the fact that since the last assessment of Varroa mite reproduction in the savannah honeybee, infertility rates measured in this study have increased and fecundity rates as well as reproductive success decreased (Martin and Kryger, 2002). Similar observations of tolerance or resistance development over time in the absence of treatment have been observed in other honeybee populations invaded by Varroa mites (De Jong and Soares, 1997;Kefuss et al 2004;Fries et al 2006;Le Conte et al 2007;Seeley 2007;Locke and Fries, 2011;Locke et al 2012;Seeley et al 2015). These studies show a variety of mechanisms leading to colony survival and their identification provides us with an array of traits that can be selectively bred into susceptible honeybee populations to increase their survival to infestations by this most damaging parasite.…”
Section: Resistance Rather Than Tolerance Of Savannah Honeybees Towarsupporting
confidence: 84%
“…This is supported by the fact that since the last assessment of Varroa mite reproduction in the savannah honeybee, infertility rates measured in this study have increased and fecundity rates as well as reproductive success decreased (Martin and Kryger, 2002). Similar observations of tolerance or resistance development over time in the absence of treatment have been observed in other honeybee populations invaded by Varroa mites (De Jong and Soares, 1997;Kefuss et al 2004;Fries et al 2006;Le Conte et al 2007;Seeley 2007;Locke and Fries, 2011;Locke et al 2012;Seeley et al 2015). These studies show a variety of mechanisms leading to colony survival and their identification provides us with an array of traits that can be selectively bred into susceptible honeybee populations to increase their survival to infestations by this most damaging parasite.…”
Section: Resistance Rather Than Tolerance Of Savannah Honeybees Towarsupporting
confidence: 84%
“…Apis mellifera colonies cannot survive without chemical treatment against Varroa mites and colonies usually die within one to three years if left untreated (Martin 1998;Rosenkranz et al 2010). The susceptibility of A. mellifera to this parasite is the general rule, but there are several examples of European, Africanised and African honeybee populations that have, despite the absence of co-evolution with Varroa mites, survived in their presence without chemical treatment (De Jong and Soares 1997;Allsopp 2006;Fries et al 2006;Le Conte et al 2007;Seeley 2007;Locke and Fries 2011).…”
Section: Introductionmentioning
confidence: 99%
“…Mean survival duration in days and standard error (SE) in different genotypes, adjusted for the effects of origin and location. Kefuss et al, 2004;Fries et al, 2006;Le Conte et al, 2007).…”
Section: Resultsmentioning
confidence: 99%
“…For example, in non-treated populations in the South of France, mortality varied between 9.7% and 16.8% per year over a seven year period (Le Conte et al, 2007) while in the non-treated population on the island of Gotland in Sweden, winter mortality rate was 76% in the third year (Fries et al, 2006). In comparison to these studies, the number of surviving colonies in our two and a half year study (15%) appears slightly lower than expected.…”
Section: Resultsmentioning
confidence: 99%
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