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Tytuł pozycji:

Hoary Squash Bees (Eucera pruinosa: Hymenoptera: Apidae) Provide Abundant and Reliable Pollination Services to Cucurbita Crops in Ontario (Canada).

Tytuł :
Hoary Squash Bees (Eucera pruinosa: Hymenoptera: Apidae) Provide Abundant and Reliable Pollination Services to Cucurbita Crops in Ontario (Canada).
Autorzy :
Willis Chan DS; School of Environmental Sciences, University of Guelph, Guelph, ON, Canada.
Raine NE; School of Environmental Sciences, University of Guelph, Guelph, ON, Canada.
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Źródło :
Environmental entomology [Environ Entomol] 2021 May 17. Date of Electronic Publication: 2021 May 17.
Publication Model :
Ahead of Print
Typ publikacji :
Journal Article
Język :
English
Imprint Name(s) :
Publication: Oxford : Oxford University Press
Original Publication: College Park, Md., Entomological Society of America.
Contributed Indexing :
Keywords: Cucurbita crop pollination services; crop pollination window; pollinator benchmarks; wild bees
Entry Date(s) :
Date Created: 20210517 Latest Revision: 20210517
Update Code :
20210623
DOI :
10.1093/ee/nvab045
PMID :
33998650
Czasopismo naukowe
The increasing demand for insect-pollinated crops highlights the need for crop pollination paradigms that include all available pollinators. In North America, Cucurbita crops (pumpkin, squash) depend on both wild (solitary and Bombus spp.: Hymenoptera: Apidae) and managed honey bees (Apis mellifera L. 1758: Hymenoptera: Apidae) for pollination. Temporal and spatial differences in abundance may determine which bee taxa are the most important pollinators of Cucurbita crops. We surveyed bees visiting Cucurbita crop flowers on 19 farms over four years (2015-2018) during the crop flowering period (July 1-August 30 from 06:00-12:00). All the farms surveyed had hoary squash bees (Eucera pruinosa (Say, 1867), and most also had some combination of honey bees, bumble bees (Bombus spp.), or other wild bees present on their Cucurbita crop flowers. All four bee taxa were present on about two-thirds of farms. Spatially and temporally, wild bees were more abundant on Cucurbita crop flowers than managed honey bees. Hoary squash bees were the most abundant wild bees, maintaining their abundance relative to other wild bee taxa year-over-year. Male hoary squash bees were both more frequently and consistently seen visiting crop flowers than females in all years. Peak activity of hoary squash bees and bumble bees coincided with the daily crop pollination window, whereas peak activity of honey bees and other wild bees occurred after that window. In addition to elucidating the ecological interactions among wild and managed pollinators on Cucurbita crops, our work provides a novel practical way to evaluate pollinator abundance using a crop-centered benchmark framework.
(© The Author(s) 2021. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)

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