Neonicotinoid pesticides can reduce honeybee colony genetic diversity
dc.contributor.author | Forfert, Nadege | |
dc.contributor.author | Troxler, Aline | |
dc.contributor.author | Retschnig, Gina | |
dc.contributor.author | Gauthier, Laurent | |
dc.contributor.author | Straub, Lars | |
dc.contributor.author | Moritz, Robin F.A. | |
dc.contributor.author | Neumann, Peter | |
dc.contributor.author | Williams, Geoffrey R. | |
dc.date.accessioned | 2017-11-21T13:10:38Z | |
dc.date.available | 2017-11-21T13:10:38Z | |
dc.date.issued | 2017-10-23 | |
dc.description | S1 Table. Raw data of the worker offspring genotyping for each mated honeybee queens (Apis mellifera). Tweenty to 24 worker offspring (individuals) per queen were genotyped using five closely linked microsatellite loci (HB007, HB005, HB004, SV240 and HB15). Alleles were scored as fragment lengths in base pairs. Colony source refers to the colony from which queens were reared. Treatments are noted ªPº when the queens were exposed to neonicotinoids (thiamethoxam and clothianidin) during developmental stage, or ªCº for controls. | en_ZA |
dc.description.abstract | Neonicotinoid insecticides can cause a variety of adverse sub-lethal effects in bees. In social species such as the honeybee, Apis mellifera, queens are essential for reproduction and colony functioning. Therefore, any negative effect of these agricultural chemicals on the mating success of queens may have serious consequences for the fitness of the entire colony. Queens were exposed to the common neonicotinoid pesticides thiamethoxam and clothianidin during their developmental stage. After mating, their spermathecae were dissected to count the number of stored spermatozoa. Furthermore, their worker offspring were genotyped with DNA microsatellites to determine the number of matings and the genotypic composition of the colony. Colonies providing the male mating partners were also inferred. Both neonicotinoid and control queens mated with drones originating from the same drone source colonies, and stored similar number of spermatozoa. However, queens reared in colonies exposed to both neonicotinoids experienced fewer matings. This resulted in a reduction of the genetic diversity in their colonies (i.e. higher intracolonial relatedness). As decreased genetic diversity among worker bees is known to negatively affect colony vitality, neonicotinoids may have a cryptic effect on colony health by reducing the mating frequency of queens. | en_ZA |
dc.description.department | Zoology and Entomology | en_ZA |
dc.description.librarian | am2017 | en_ZA |
dc.description.sponsorship | The Vinetum, Ricola, and Swiss National Science foundations, the Swiss Federal Office for the Environment, Agroscope, and the FIT BEE project (Bundesministerium fur Ernahrung und Landwirtschaft). | en_ZA |
dc.description.uri | http://www.plosone.org | en_ZA |
dc.identifier.citation | Forfert N, Troxler A, Retschnig G, Gauthier L, Straub L, Moritz RFA, et al. (2017) Neonicotinoid pesticides can reduce honeybee colony genetic diversity. PLoS ONE 12(10): e0186109. https://DOI.org/ 10.1371/journal.pone.0186109. | en_ZA |
dc.identifier.issn | 1932-6203 (online) | |
dc.identifier.other | 10.1371/journal.pone.0186109 | |
dc.identifier.uri | http://hdl.handle.net/2263/63253 | |
dc.language.iso | en | en_ZA |
dc.publisher | Public Library of Science | en_ZA |
dc.rights | © 2017 Forfert et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. | en_ZA |
dc.subject | Bees | en_ZA |
dc.subject | Neonicotinoid insecticides | en_ZA |
dc.subject | Colony | en_ZA |
dc.subject | Honeybee (Apis mellifera) | en_ZA |
dc.subject | Exposure | en_ZA |
dc.subject | Frequency | en_ZA |
dc.subject | Evolution | en_ZA |
dc.subject | Insecticide | en_ZA |
dc.subject | Bee colonies | en_ZA |
dc.subject | Social insects | en_ZA |
dc.subject | Risk assessment | en_ZA |
dc.subject | Learning performances | en_ZA |
dc.subject | Extreme polyandry | en_ZA |
dc.title | Neonicotinoid pesticides can reduce honeybee colony genetic diversity | en_ZA |
dc.type | Article | en_ZA |
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