Survey of Soybean Insect Pollinators: Community Identification and Sampling Method Analysis

Gill, Kelly Ann; O’Neal, Matthew E.

doi:10.1093/ee/nvv001

Cited by 64 publications

(76 citation statements)

References 37 publications

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“…Casual observation of soybeans during bloom indicated that honey bees did not visit soybean flowers, although we did identify a small amount of soybean pollen from two sites (no corn pollen was detected) and, further, honey bees and wild bees have been documented visiting soybeans (e.g. Erickson, 1975;Gill and O'Neal, 2015). As further evidence of drift, we detected chlorpyrifos most prevalently (50%, 80%, and 63% of pollen samples, respectively) at sites D, E and F; the three sites with the most non-forage (primarily corn and soybeans) surrounding them.…”

Section: Pesticide Exposurementioning

confidence: 68%

Land use in the Northern Great Plains region of the U.S. influences the survival and productivity of honey bee colonies

Smart

Pettis²,

Euliss

et al. 2016

Agriculture, Ecosystems & Environment

102

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A B S T R A C TThe Northern Great Plains region of the US annually hosts a large portion of commercially managed U.S. honey bee colonies each summer. Changing land use patterns over the last several decades have contributed to declines in the availability of bee forage across the region, and the future sustainability of the region to support honey bee colonies is unclear. We examined the influence of varying land use on the survivorship and productivity of honey bee colonies located in six apiaries within the Northern Great Plains state of North Dakota, an area of intensive agriculture and high density of beekeeping operations. Land use surrounding the apiaries was quantified over three years, 2010-2012, and survival and productivity of honey bee colonies were determined in response to the amount of bee forage land within a 3.2-km radius of each apiary. The area of uncultivated forage land (including pasture, USDA conservation program fields, fallow land, flowering woody plants, grassland, hay land, and roadside ditches) exerted a positive impact on annual apiary survival and honey production. Taxonomic diversity of bee-collected pollen and pesticide residues contained therein varied seasonally among apiaries, but overall were not correlated to large-scale land use patterns or survival and honey production. The predominant flowering plants utilized by honey bee colonies for pollen were volunteer species present in unmanaged (for honey bees), and often ephemeral, lands; thus placing honey bee colonies in a precarious situation for acquiring forage and nutrients over the entire growing season. We discuss the implications for land management, conservation, and beekeeper site selection in the Northern Great Plains to adequately support honey bee colonies and insure long term security for pollinator-dependent crops across the entire country.

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Section: Pesticide Exposurementioning

confidence: 68%

Land use in the Northern Great Plains region of the U.S. influences the survival and productivity of honey bee colonies

Smart

Pettis²,

Euliss

et al. 2016

Agriculture, Ecosystems & Environment

102

View full text Add to dashboard Cite

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“…Research investigating bee communities within non-pollinator dependent crops is rare; however recent studies in corn, soybean, biofuel crops (corn, switchgrass, mixed prairie species) [11,12,13,101,102], and now potato fields (this study) are improving understanding of bee diversity in non-pollinator dependent crops. Bee abundance and richness is typically lower in intensive crops relative to more diversified habitats [101], however a substantial number of bee species remain in these landscapes.…”

Section: Discussionmentioning

confidence: 99%

“…Despite agricultural landscape simplification, about 50–60 species of pollinators have been collected from soybean and corn monocultures, indicating that pollinators use and persist in these agroecosystems [11,12,13]. Potato fields produce temporary flushes of flowers that may attract species of polylectic native bees nesting in nearby undisturbed areas.…”

Section: Introductionmentioning

confidence: 99%

Bee Community of Commercial Potato Fields in Michigan and Bombus impatiens Visitation to Neonicotinoid-Treated Potato Plants

Buchanan

Gibbs

Komondy

et al. 2017

Insects

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We conducted a bee survey in neonicotinoid-treated commercial potato fields using bowl and vane traps in the 2016 growing season. Traps were placed outside the fields, at the field edges, and 10 and 30 m into the fields. We collected 756 bees representing 58 species, with Lasioglossum spp. comprising 73% of all captured bees. We found seven Bombus spp., of which B. impatiens was the only known visitor of potato flowers in our region. The majority of the bees (68%) were collected at the field edges and in the field margins. Blue vane traps caught almost four-times as many bees and collected 30% more species compared to bowl traps. Bee communities did not differ across trap locations but they were different among trap types. We tested B. impatiens visitation to neonicotinoid treated and untreated potato flowers in field enclosures. The amount of time bees spent at flowers and the duration of visits were not significantly different between the two treatments. Our results demonstrate that a diverse assemblage of bees is associated with an agroecosystem dominated by potatoes despite the apparent lack of pollinator resources provided by the crop. We found no difference in B. impatiens foraging behavior on neonicotinoid-treated compared to untreated plants.

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“…At the first four sites, bees were collected from abundantly blooming forbs by netting in a 30–60 minute period [34]. In the agricultural site, bees were collected in modified pan traps (i.e., bee bowls containing soapy water) [35]. The use of multiple field sites of different land use types across the season allowed for capture of a wide variety of bee species.…”

Section: Methodsmentioning

confidence: 99%

Honey Bee Viruses in Wild Bees: Viral Prevalence, Loads, and Experimental Inoculation

et al. 2016

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Evidence of inter-species pathogen transmission from managed to wild bees has sparked concern that emerging diseases could be causing or exacerbating wild bee declines. While some pathogens, like RNA viruses, have been found in pollen and wild bees, the threat these viruses pose to wild bees is largely unknown. Here, we tested 169 bees, representing 4 families and 8 genera, for five common honey bee (Apis mellifera) viruses, finding that more than 80% of wild bees harbored at least one virus. We also quantified virus titers in these bees, providing, for the first time, an assessment of viral load in a broad spectrum of wild bees. Although virus detection was very common, virus levels in the wild bees were minimal—similar to or lower than foraging honey bees and substantially lower than honey bees collected from hives. Furthermore, when we experimentally inoculated adults of two different bee species (Megachile rotundata and Colletes inaequalis) with a mixture of common viruses that is lethal to honey bees, we saw no effect on short term survival. Overall, we found that honey bee RNA viruses can be commonly detected at low levels in many wild bee species, but we found no evidence that these pathogens cause elevated short-term mortality effects. However, more work on these viruses is greatly needed to assess effects on additional bee species and life stages.

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Survey of Soybean Insect Pollinators: Community Identification and Sampling Method Analysis

Cited by 64 publications

References 37 publications

Land use in the Northern Great Plains region of the U.S. influences the survival and productivity of honey bee colonies

Land use in the Northern Great Plains region of the U.S. influences the survival and productivity of honey bee colonies

Bee Community of Commercial Potato Fields in Michigan and Bombus impatiens Visitation to Neonicotinoid-Treated Potato Plants

Honey Bee Viruses in Wild Bees: Viral Prevalence, Loads, and Experimental Inoculation

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