2020
DOI: 10.3389/fevo.2020.566964
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Nocturnal Bees Feed on Diurnal Leftovers and Pay the Price of Day – Night Lifestyle Transition

Abstract: Bees exemplify flights under bright sunlight. A few species across bee families have evolved nocturnality, displaying remarkable adaptations to overcome limitations of their daylight-suited apposition eyes. Phase inversion to nocturnality in a minority of bees that co-exist with diurnal bees provides a unique opportunity to study ecological benefits that mediate total temporal niche shifts. While floral traits and sensory modalities associated with the evolution of classical nocturnal pollination syndromes, e.… Show more

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Cited by 14 publications
(12 citation statements)
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References 68 publications
(83 reference statements)
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“…However, A. dorsata appears to have relatively low metabolic heat output in flight, so we would expect it to be disadvantageous at cooler nighttime temperatures [20,29]. A particularly significant advantage of nocturnal activity for A. dorsata may be related to food gathering: by extending their diurnal activity into the night, they could prolong their ability to exploit flower species that offer pollen and nectar resources near sunset and sunrise, and gain access to an entirely new set of night-blooming floral resources [11,[38][39][40].…”
Section: Introductionmentioning
confidence: 99%
“…However, A. dorsata appears to have relatively low metabolic heat output in flight, so we would expect it to be disadvantageous at cooler nighttime temperatures [20,29]. A particularly significant advantage of nocturnal activity for A. dorsata may be related to food gathering: by extending their diurnal activity into the night, they could prolong their ability to exploit flower species that offer pollen and nectar resources near sunset and sunrise, and gain access to an entirely new set of night-blooming floral resources [11,[38][39][40].…”
Section: Introductionmentioning
confidence: 99%
“…Conditions were stable and favorable so that bees could maximize food collection during the day. Those that went out earlier are likely to benefit from early morning flowers (Ewusie & Quaye, 1977;Oltmanns, 1895;Pacini & Nepi, 2007;van Doorn & van Meeteren, 2003) and residual resources leftover from the previous day (Somanathan et al, 2020). When the majority of bees started later during dawn and the morning, light levels were already high enough for taking full advantage of their visual and flight capabilities and selecting among a larger variety of flowers.…”
Section: Discussionmentioning
confidence: 99%
“…Bees of Ptiloglossa also visit different nightflowering plants, but in one single brood cell a monofloral pollen load was found [20]. The Paleotropical bee species X. tranquebarica, which visits flowers throughout the night, seems to be a generalist, as it was found to feed on diurnal leftovers from 71 plant species [76].…”
Section: Host Plants Of Nocturnal Beesmentioning
confidence: 99%