Spectral sensitivities of the orchid bee Euglossa dilemma

Dexheimer, Andreia F.; Outomuro, David; Dunlap, Aimee S.; Morehouse, Nathan I

doi:10.1016/j.jinsphys.2022.104464

Cited by 6 publications

(2 citation statements)

References 34 publications

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“…Using electrophysiological studies, we confirmed the presence of two photoreceptors, one for blue (450 nm) and the other for green (510-530 nm) in L. sericata from Colombia. The sensitivity observed in the violet range (400 nm) after selective adaptation experiments (Figure 3 Besides, the ranges of sensitivity measured for L. sericata adults from Colombia are similar to those reported for other populations (McFadden & Hans, 2019) and also for other diurnal and nocturnal insects with the presence of receptors to blue, green, and UV, like Euglossa dilemma (Dexheimer et al, 2023), Rhodnius prolixus (Ortiz et al, 2023), Myzus persicae (Kirchner et al, 2005), Glossina sp (Steverding & Troscianko, 2004) and Arachnocampa luminosa (Meyer & Eguchi, 1984).…”

Section: Spectral Sensitivity Of Lucila Sericata Compound Eyes In Col...supporting

confidence: 86%

Spectral sensitivity of the compound eyes and behavioral attraction to light stimuli with different intensities and wavelengths in Lucilia sericata (Meigen, 1826) from Colombia

Galindo-Cuervo,

Molina

2023

Rev. Acad. Colomb. Cienc. Ex. Fis. Nat.

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Lucilia sericata (Meigen, 1826) (Diptera: Calliphoridae) is a synanthropic fly with a worldwide distribution that pollinates plants and is relevant in medical, veterinary, and forensic sciences. L. sericata is a diurnal species whose vision plays an important role in spatial orientation. Here we evaluated the electrophysiological responses (ERG) of L. sericata’s compound eyes in adults of both sexes from Colombia and their behavioral attraction to LED lights with different wavelengths. The ERG revealed a dichromatic vision with peaks at blue (450 nm) and green (510-530 nm) wavelengths in individuals of both sexes. Behavioral experiments with a two-sided light tunnel showed that both sexes were mainly attracted to blue, white, and red lights of different intensities (0.34, 0.15, and 0.034 μW/cm2). Attraction to the lights decreased at lower intensities; however, attraction to blue, white, and red lights was still observed. The electrophysiological and behavioral results we obtained in the laboratory were complementary and explain how Colombian untrained L. sericata adults interact with their environment using mainly the sunlight wavelengths reflected under natural conditions.

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Section: Spectral Sensitivity Of Lucila Sericata Compound Eyes In Col...supporting

confidence: 86%

Spectral sensitivity of the compound eyes and behavioral attraction to light stimuli with different intensities and wavelengths in Lucilia sericata (Meigen, 1826) from Colombia

Galindo-Cuervo,

Molina

2023

Rev. Acad. Colomb. Cienc. Ex. Fis. Nat.

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“…Euglossa dilemma visited flowers of many different colors, but the colors were not scientifically defined so this information cannot be meaningfully compared to that of other studies. Color vision of E. dilemma males has peaks in the ultraviolet, blue and green regions, indicating that their vision is similar to other corbiculate (pollen-basket-, i.e., stingless bees, honeybees, and bumblebees) [57]. Nevertheless, only seven of the flowers that the bee visited (Table 1) were red to the human eye, including Pentas lanceolata (Rubiaceae), one of the most visited flowers by E. dilemma in Florida, due in part to its ubiquitous presence as an ornamental.…”

Section: Flower Colormentioning

confidence: 94%

Plant Resource Use and Pattern of Usage by the Naturalized Orchid Bee (Euglossa dilemma: Hymenoptera: Apidae) in Florida

Pemberton

2023

Insects

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The Neotropical orchid bee Euglossa dilemma was found to be naturalized in southern Florida in 2003, and, by 2022, it had colonized the southern half of Florida. Observations of the bee’s collection of plant resources, primarily flowers, were made from 2003 through to 2022 to document its plant usage and understand the patterns of its plant usage. The bee utilized 259 plant taxa, 237 species, and 22 horticultural forms, in 156 genera and 56 families in 263 total uses. Of 247 taxa of flowers, 120 were visited primarily for nectar, 46 for both nectar and pollen, 60 for pollen, including 42 buzz-pollinated flowers, 15 for fragrance chemicals for the males, and 5 for resin rewards by females for nesting. Fragrance chemicals were also collected by males from the leaves of 12 plant species. These extensive resource use data allowed the following predictions to be made. (1) The bee’s presence in Florida, distant from its native region of Mexico and Central America and the geographical ranges of other orchid bees, would result the usage of many new taxa of plants. True, half, 74/148 (50%), of the genera and one third, 16/51(31%), of the plant families of the plants with flowers used by the bee were not previously recorded as being utilized by Euglossine bees. (2) Like other naturalized bees, it would use relatively more plants from its native range or congeners of these plants. True, 113/148 (76%) of genera with species bearing collected floral rewards are native or congeners with species native to the bee’s native range. (3) Given the bee’s long tongue, ability to buzz pollen from poricidal anthers, and ability to collect and use specialized rewards, it would disproportionately use plants with protected or highly specialized floral rewards. True, 180/247 (72%) utilized species bear rewards which were protected and unavailable to, or of no interest to, most other flower visitors.

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Why diversity matters for understanding the visual ecology and behaviour of bees

Somanathan

2024

Current Opinion in Insect Science

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Spectral sensitivities of the orchid bee Euglossa dilemma

Cited by 6 publications

References 34 publications

Spectral sensitivity of the compound eyes and behavioral attraction to light stimuli with different intensities and wavelengths in Lucilia sericata (Meigen, 1826) from Colombia

Spectral sensitivity of the compound eyes and behavioral attraction to light stimuli with different intensities and wavelengths in Lucilia sericata (Meigen, 1826) from Colombia

Plant Resource Use and Pattern of Usage by the Naturalized Orchid Bee (Euglossa dilemma: Hymenoptera: Apidae) in Florida

Why diversity matters for understanding the visual ecology and behaviour of bees

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