Accelerated Varroa destructor population growth in honey bee (Apis mellifera) colonies is associated with visitation from non-natal bees

Abstract A leading cause of managed honey bee colony mortality in the US, Varroa destructor populations typically exceed damaging levels in the fall. One explanation for rapid population increases is migration of mite carrying bees between colonies. Here, the degree to which bees from high and low m...

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Autores principales:	Kelly Kulhanek, Andrew Garavito, Dennis vanEngelsdorp
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/00bc164293bc4dd6abe345b1f61e5d5b
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spelling	oai:doaj.org-article:00bc164293bc4dd6abe345b1f61e5d5b2021-12-02T14:25:16ZAccelerated Varroa destructor population growth in honey bee (Apis mellifera) colonies is associated with visitation from non-natal bees10.1038/s41598-021-86558-82045-2322https://doaj.org/article/00bc164293bc4dd6abe345b1f61e5d5b2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86558-8https://doaj.org/toc/2045-2322Abstract A leading cause of managed honey bee colony mortality in the US, Varroa destructor populations typically exceed damaging levels in the fall. One explanation for rapid population increases is migration of mite carrying bees between colonies. Here, the degree to which bees from high and low mite donor colonies move between apiaries, and the effect visitation has on Varroa populations was monitored. More bees from low mite colonies (n = 37) were detected in receiver apiaries than bees from high mite colonies (n = 10, p < 0.001). Receiver colony Varroa population growth was associated with visitation by non-natal bees (p = 0.03), but not high mite bees alone (p = 0.19). Finally, colonies lacking robbing screens experienced faster Varroa population growth than screened neighbors (p = 0.01). Results indicate visiting non-natal bees may vector mites to receiver colonies. These results do not support the current two leading theories regarding mite immigration – the “mite bomb” theory (bees from high mite colonies emigrating to collapsing colonies), or the “robbing” theory (natal robbing bees return home with mites from collapsing colonies). Potential host-parasite effects to bee behavior, as well as important management implications both for Varroa treatment regimens and breeding Varroa resistant bees are discussed.Kelly KulhanekAndrew GaravitoDennis vanEngelsdorpNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kelly Kulhanek Andrew Garavito Dennis vanEngelsdorp Accelerated Varroa destructor population growth in honey bee (Apis mellifera) colonies is associated with visitation from non-natal bees
description	Abstract A leading cause of managed honey bee colony mortality in the US, Varroa destructor populations typically exceed damaging levels in the fall. One explanation for rapid population increases is migration of mite carrying bees between colonies. Here, the degree to which bees from high and low mite donor colonies move between apiaries, and the effect visitation has on Varroa populations was monitored. More bees from low mite colonies (n = 37) were detected in receiver apiaries than bees from high mite colonies (n = 10, p < 0.001). Receiver colony Varroa population growth was associated with visitation by non-natal bees (p = 0.03), but not high mite bees alone (p = 0.19). Finally, colonies lacking robbing screens experienced faster Varroa population growth than screened neighbors (p = 0.01). Results indicate visiting non-natal bees may vector mites to receiver colonies. These results do not support the current two leading theories regarding mite immigration – the “mite bomb” theory (bees from high mite colonies emigrating to collapsing colonies), or the “robbing” theory (natal robbing bees return home with mites from collapsing colonies). Potential host-parasite effects to bee behavior, as well as important management implications both for Varroa treatment regimens and breeding Varroa resistant bees are discussed.
format	article
author	Kelly Kulhanek Andrew Garavito Dennis vanEngelsdorp
author_facet	Kelly Kulhanek Andrew Garavito Dennis vanEngelsdorp
author_sort	Kelly Kulhanek
title	Accelerated Varroa destructor population growth in honey bee (Apis mellifera) colonies is associated with visitation from non-natal bees
title_short	Accelerated Varroa destructor population growth in honey bee (Apis mellifera) colonies is associated with visitation from non-natal bees
title_full	Accelerated Varroa destructor population growth in honey bee (Apis mellifera) colonies is associated with visitation from non-natal bees
title_fullStr	Accelerated Varroa destructor population growth in honey bee (Apis mellifera) colonies is associated with visitation from non-natal bees
title_full_unstemmed	Accelerated Varroa destructor population growth in honey bee (Apis mellifera) colonies is associated with visitation from non-natal bees
title_sort	accelerated varroa destructor population growth in honey bee (apis mellifera) colonies is associated with visitation from non-natal bees
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/00bc164293bc4dd6abe345b1f61e5d5b
work_keys_str_mv	AT kellykulhanek acceleratedvarroadestructorpopulationgrowthinhoneybeeapismelliferacoloniesisassociatedwithvisitationfromnonnatalbees AT andrewgaravito acceleratedvarroadestructorpopulationgrowthinhoneybeeapismelliferacoloniesisassociatedwithvisitationfromnonnatalbees AT dennisvanengelsdorp acceleratedvarroadestructorpopulationgrowthinhoneybeeapismelliferacoloniesisassociatedwithvisitationfromnonnatalbees
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Accelerated Varroa destructor population growth in honey bee (Apis mellifera) colonies is associated with visitation from non-natal bees

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