Article ; Online: Blue orchard bee (Hymenoptera: Megachilidae) origin and orchard growing region affect female retention at artificial nest sites in cherry orchards.
2023 Volume 52, Issue 4, Page(s) 681–691
Abstract: The blue orchard bee, Osmia lignaria Say (Hymenoptera: Megachilidae), is a solitary, cavity-nesting species used for pollinating spring blooming crops. Commercial stocks are sourced from a few locations in the western United States but are sold across ... ...
| Abstract | The blue orchard bee, Osmia lignaria Say (Hymenoptera: Megachilidae), is a solitary, cavity-nesting species used for pollinating spring blooming crops. Commercial stocks are sourced from a few locations in the western United States but are sold across the country. However, the existence of local adaptations of these bees is unknown, such as the propensity to nest in nearby provided materials or to disperse broadly beyond release sites. In spring 2019, California- and Utah-sourced blue orchard bees were introduced into cherry orchards in both source and reciprocal states. Nest boxes were placed near (within 78 m) and far (500 m-1 km) from central bee release points. Paint-marked bees were released when floral resources were available. Observations of marked bees at nest boxes were used to evaluate female retention and dispersal pattern. Nesting bee counts in March-blooming California orchards revealed a significant difference in female retention by population source; over twice as many UT bees established nests than did CA bees. Few females were found at far nest sites. In May-blooming Utah orchards, counts of CA and UT bees were similar at near and far nest sites; neither female retention nor dispersal was significantly affected by bee origin. It is concerning that CA females were less likely to be retained in California orchards because the demand for commercial pollination is high for early-blooming California almond and cherry. Our results highlight the need to understand potential consequences of bee origin and their management on pollinator performance and reproduction in target crops. |
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| MeSH term(s) | Bees ; Female ; Animals ; Hymenoptera ; Pollination ; Reproduction ; Prunus dulcis ; Seasons |
| Language | English |
| Publishing date | 2023-06-16 |
| Publishing country | England |
| Document type | Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. |
| ZDB-ID | 120799-4 |
| ISSN | 1938-2936 ; 0046-2268 ; 0046-225X |
| ISSN (online) | 1938-2936 |
| ISSN | 0046-2268 ; 0046-225X |
| DOI | 10.1093/ee/nvad057 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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