Reduced Postcapping Period in Honey Bees Surviving Varroa destructor by Means of Natural Selection

Oddie, Melissa Alexandra Yvonne; Dahle, Bjørn; Neumann, Peter (2018). Reduced Postcapping Period in Honey Bees Surviving Varroa destructor by Means of Natural Selection. Insects, 9(4) MDPI 10.3390/insects9040149

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he ectoparasitic mite Varroa destructor is a key factor for colony losses in European honey bee subspecies (Apis mellifera), but it is also known that some host populations have adapted to the mite by means of natural selection. The role of a shorter host brood postcapping period in reducing mite reproductive success has been investigated in other surviving subspecies, however its role in the adaptation of European honey bee populations has not been addressed. Here, we use a common garden approach to compare the length of the worker brood postcapping period in a Norwegian surviving honey bee population with the postcapping period of a local susceptible population. The data show a significantly shorter postcapping period in the surviving population for ~10% of the brood. Since even small differences in postcapping period can significantly reduce mite reproductive success, this mechanism may well contribute to natural colony survival. It appears most likely that several mechanisms acting together produce the full mite-surviving colony phenotype.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH)
05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH) > Institute of Bee Health

UniBE Contributor:

Oddie, Melissa Alexandra Yvonne and Neumann, Peter

Subjects:

500 Science > 590 Animals (Zoology)
600 Technology > 630 Agriculture

ISSN:

2075-4450

Publisher:

MDPI

Language:

English

Submitter:

Anna Papach

Date Deposited:

21 May 2019 14:39

Last Modified:

23 Oct 2019 00:39

Publisher DOI:

10.3390/insects9040149

PubMed ID:

30356021

BORIS DOI:

10.7892/boris.127023

URI:

https://boris.unibe.ch/id/eprint/127023

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