Show simple item record

dc.contributor.authorFeuerbacher, Erica N.en_US
dc.contributor.authorFewell, Jennifer H.en_US
dc.contributor.authorRoberts, Stephen P.en_US
dc.contributor.authorSmith, Elizabeth F.en_US
dc.contributor.authorHarrison, Jon F.en_US
dc.description.abstractIn this study we tested the effect of pollen and nectar loading on metabolic rate (in mW) and wingbeat frequency during hovering, and also examined the effect of pollen loading on wing kinematics and mechanical power output. Pollen foragers had hovering metabolic rates approximately 10% higher than nectar foragers, regardless of the amount of load carried. Pollen foragers also had a more horizontal body position and higher inclination of stroke plane than measured previously for honey bees (probably nectar foragers). Thorax temperatures ranked pollen > nectar > water foragers, and higher flight metabolic rate could explain the higher thorax temperature of pollen foragers. Load mass did not affect hovering metabolic rate or wingbeat frequency in a regression-model experiment. However, using an analysis of variance (ANOVA) design, loaded pollen and nectar foragers (mean loads 27% and 40% of body mass, respectively) significantly increased metabolic rate by 6%. Mean pollen loads of 18% of body mass had no effect on wingbeat frequency, stroke amplitude, body angle or inclination of stroke plane, but increased the calculated mechanical power output by 16–18% (depending on the method of estimating drag). A rise in lift coefficient as bees carry loads without increasing wingbeat frequency or stroke amplitude (and only minimal increases in metabolic rate) suggests an increased use of unsteady power-generating mechanisms.en_US
dc.format.extent1855 - 1865 page(s)en_US
dc.rightsCreative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)*
dc.titleEffects of load type (pollen or nectar) and load mass on hovering metabolic rate and mechanical power output in the honey bee Apis melliferaen_US
dc.typeArticle - Refereed
dc.description.versionPublished (Publication status)en_US
dc.title.serialJournal of Experimental Biologyen_US
pubs.organisational-group/Virginia Tech
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/Animal and Poultry Sciences
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/CALS T&R Faculty
pubs.organisational-group/Virginia Tech/All T&R Faculty

Files in this item


This item appears in the following Collection(s)

Show simple item record

Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
License: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)