Nesting Behavior of Megachile rotundata (Hymenoptera: Megachilidae) Monitored with an Event Recorder1

Klostermeyer, E. C.; Gerber, Henry S.

doi:10.1093/aesa/62.6.1321

Cited by 42 publications

(34 citation statements)

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“…Pollen-filled crops likely result from one feeding trip and not from incremental ingestion of small pollen meals over several foraging trips. Females watched in observation nests consistently regurgitate nectar on growing provisions after most or all foraging trips, as reported for N. melanderi (Batra 1970) and a species each of Agapostemon , Anthophora , M e g a c h i l e , and O s m i a ( P h i l l i p s a n d Klostermeyer 1978;Klostermeyer and Gerber 1969;Roberts 1969;Batra and Norden 1996). Moreover, midguts were significantly more likely to contain pollen by afternoon, implying that any pollen consumed in the morning was well into the midgut within just a few hours.…”

Section: Discussionsupporting

confidence: 54%

Timing and size of daily pollen meals eaten by adult females of a solitary bee (Nomia melanderi) (Apiformes: Halictidae)

2016

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-Pollen feeding by solitary bees has been studied mainly with their larvae, overlooking pollen feeding by adults. To address this knowledge gap, we determined the amounts and temporal (daily and lifetime) schedules of pollen consumption by freely nesting, adult females of the alkali bee (Nomia melanderi , Halictidae). Nesting females of known ages were taken at different hours of the day from nesting aggregations managed for alfalfa pollination in southeastern Washington State (USA). Each dissected bee was visually scored for pollen fill of the crop, midgut, and hindgut; we also quantified the crop's pollen capacity. Our dissections of 188 bees show that adult females ate pollen daily for at least the first 2 weeks following emergence. Most bees (85 %) had pollen boluses in one or more gut regions, indicating active pollen feeding. Pollen masses were most likely in the midgut; the daily volume consumed usually filled both the crop and midgut at least once. Full crops contained 34,000 alfalfa pollen grains, equivalent to <20 % of a full scopal load and 0.8 % of the pollen in a nest provision. Proportionately more females ate pollen as the day progressed, indicated by pollen masses in the crop. By early evening, crops of all bees were filled with pollen. Our study reveals the dietary importance of regular pollen feeding for nesting adult female solitary bees, and not just their larvae, with implications for bee foraging ecology, dietary physiology, reproduction, toxicology, and pollination ecology.Apiformes / Apoidea / bees / Hymenoptera / foraging

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Section: Discussionsupporting

confidence: 54%

Timing and size of daily pollen meals eaten by adult females of a solitary bee (Nomia melanderi) (Apiformes: Halictidae)

2016

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“…In general, our observations on the nesting biology and foraging behaviors of M. minutissima in the desert of central Saudi Arabia agree with what is known for the few other species of Eutricharaea (e.g., Medler 1965, Klostermeyer and Gerber 1969, Kim 1992. That is, they use preexisting cavities and the bottom of the cells is formed by bending the leaf pieces from the cell cup (Medler 1965, Kim 1992.…”

Section: Discussionsupporting

confidence: 86%

Nesting Biology of the Leafcutting BeeMegachile minutissima(Hymenoptera: Megachilidae) in Central Saudi Arabia

Alqarni

Hannan

González

et al. 2014

Annals of the Entomological Society of America

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“…Most species nest above ground in pre-existing cavities (Figure B) or excavate into pithy stems or decomposing wood (Stephen 1956;Ivanochko 1979). Trap-nesting of bees has allowed detailed study of life-history, nest building, provisioning and egg laying behaviours (Medler 1959(Medler , 1964Klostermeyer & Gerber 1969;Frolich & Parker 1983;Kim 1992 ), and documentation of incidences of cleptoparasitism (Scott et al 2000;Sheffield et al 2008). Trap-nest surveys also allow association of males and females of the same species (Sheffield & Westby 2007).…”

Section: Biology Of Megachilementioning

confidence: 99%

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Sheffield¹,

Ratti²,

Packer³

et al. 2011

CJAI

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Abstract. Leafcutter and mason bees of the genus Megachile are common members of the North American bee fauna and many Megachile species are important pollinators of summer flowering crops and native plant species. Despite this, no comprehensive account of species in Canada and Alaska has been published. Our objective is to provide an up-to-date revision of the genus Megachile of this region, including an interactive key to the species, and summaries of biogeographic distribution and life history. Additionally, divergence in a 658 bp segment of the mitochondrial COI gene (the "DNA barcode" region) was used to clarify the taxonomic status of several Megachile species in North America. Based on morphological differences and over 6% sequence divergence in COI, M.

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Nesting Behavior of Megachile rotundata (Hymenoptera: Megachilidae) Monitored with an Event Recorder1

Cited by 42 publications

References 0 publications

Timing and size of daily pollen meals eaten by adult females of a solitary bee (Nomia melanderi) (Apiformes: Halictidae)

Timing and size of daily pollen meals eaten by adult females of a solitary bee (Nomia melanderi) (Apiformes: Halictidae)

Nesting Biology of the Leafcutting BeeMegachile minutissima(Hymenoptera: Megachilidae) in Central Saudi Arabia

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