Pollinator Preferences for Floral Volatiles Emitted by Dimorphic Anthers of a Buzz-Pollinated Herb

Solis‐Montero, Lislie; Cáceres-García, S.; Alavez-Rosas, David; García-Crisóstomo, Jesús Fernando; Vega-Polanco, Mayumi; Grajales-Conesa, Julieta; Cruz‐López, Leopoldo

doi:10.1007/s10886-018-1014-5

Cited by 29 publications

(26 citation statements)

References 43 publications

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“…Further, although C. hyacinthoides flowers reflected bee-blue-green, eight of the 26 species reflected this colour, and thus C. hyacinthoides did not provide a unique colour signal. We observed, however, that C. hyacinthoides flowers emitted a strong scent, and scent might be an important mediator in these buzz-pollination interactions, similar to what has been shown for other buzz-pollinated taxa (Solís-Montero et al 2018, Vega-Polanco et al 2020.…”

Section: Bees Preferred and Avoided Flowers With Certain Colourssupporting

confidence: 88%

Reduced visitation to the buzz-pollinatedCyanella hyacinthoidesin the presence of other pollen sources in the hyperdiverse Cape Floristic Region

Kemp

Telles

Vallejo-Marin

2021

Preprint

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Many plant species have floral morphologies that restrict access to floral resources, such as pollen or nectar, and only a subset of floral visitors can perform the complex handling behaviours required to extract restricted resources. Due to the time and energy required to extract resources from morphologically complex flowers, these plant species potentially compete for pollinators with co-flowering plants that have more easily accessible resources. A widespread floral mechanism restricting access to pollen is the presence of tubular anthers that open through small pores or slits (poricidal anthers). Some bees have evolved the capacity to remove pollen from poricidal anthers using vibrations, giving rise to the phenomenon of buzz-pollination. These bee vibrations that are produced for pollen extraction are presumably energetically costly, and to date, few studies have investigated whether buzz-pollinated flowers may be at a disadvantage when competing for pollinators' attention with plant species that present unrestricted pollen resources. Here, we studied Cyanella hyacinthoides (Tecophilaeaceae), a geophyte with poricidal anthers in the hyperdiverse Cape Floristic Region of South Africa, to assess how the composition and relative abundance of flowers with easily accessible pollen affect bee visitation to a buzz-pollinated plant. We found that the number of pollinator species was not influenced by community composition. However, visitation rates to C. hyacinthoides were negatively related to the abundance of flowers with more accessible resources. Visitation rates were strongly associated with petal colour, showing that flower colour is important in mediating these interactions. We conclude that buzz-pollinated plants might be at a competitive disadvantage when many easily accessible pollen sources are available, particularly when competitor species share its floral signals.

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Section: Bees Preferred and Avoided Flowers With Certain Colourssupporting

confidence: 88%

Reduced visitation to the buzz-pollinatedCyanella hyacinthoidesin the presence of other pollen sources in the hyperdiverse Cape Floristic Region

Kemp

Telles

Vallejo-Marin

2021

Preprint

View full text Add to dashboard Cite

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“…We observed, however, that C . hyacinthoides flowers emitted a strong scent, and scent might be an important mediator in these buzz‐pollination interactions, similar to what has been shown for other buzz‐pollinated taxa (Solís‐Montero et al, 2018 ; Vega‐Polanco et al, 2020 ).…”

Section: Discussionsupporting

confidence: 76%

Reduced visitation to buzz‐pollinated Cyanella hyacinthoides in the presence of other pollen sources in the hyperdiverse Cape Floristic Region

Kemp

Telles

Vallejo‐Marín

2022

Ecology and Evolution

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Many plant species have floral morphologies that restrict access to floral resources, such as pollen or nectar, and only a subset of floral visitors can perform the handling behaviors required to extract restricted resources. Due to the time and energy required to extract resources from morphologically complex flowers, these plant species potentially compete for pollinators with co‐flowering plants that have more easily accessible resources. A widespread floral mechanism restricting access to pollen is the presence of tubular anthers that open through small pores or slits (poricidal anthers). Some bees have evolved the capacity to remove pollen from poricidal anthers using vibrations, giving rise to the phenomenon of buzz‐pollination. These bee vibrations that are produced for pollen extraction are presumably energetically costly, and to date, few studies have investigated whether buzz‐pollinated flowers may be at a disadvantage when competing for pollinators’ attention with plant species that present unrestricted pollen resources. Here, we studied Cyanella hyacinthoides (Tecophilaeaceae), a geophyte with poricidal anthers in the hyperdiverse Cape Floristic Region of South Africa, to assess how the composition and relative abundance of flowers with easily accessible pollen affect bee visitation to a buzz‐pollinated plant. We found that the number of pollinator species of C. hyacinthoides was not influenced by community composition. However, visitation rates to C . hyacinthoides were reduced when the relative abundances of flowers with more accessible resources were high. Visitation rates were strongly associated with petal color, showing that flower color is important in mediating these interactions. We conclude that buzz‐pollinated plants might be at a competitive disadvantage when many easily accessible pollen sources are available, particularly when competitor species share its floral signals.

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“…Indeed, higher numbers of bees occur on the moving portion of a flower bed due to their positive response to optical stimulation [139]. In addition, floral volatile compounds affect the orientation of bees [141], as well as pollen collection and behavior in bumble bees [142]. Flower size has a special function for attracting pollinators [141]; bumble bees (Bombus diversus Smith) prefer large floral displays [143].…”

Section: Bee Visitationmentioning

confidence: 99%

Overview of Bee Pollination and Its Economic Value for Crop Production

Khalifa

Elshafiey

Shetaia

et al. 2021

Insects

262

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Pollination plays a significant role in the agriculture sector and serves as a basic pillar for crop production. Plants depend on vectors to move pollen, which can include water, wind, and animal pollinators like bats, moths, hoverflies, birds, bees, butterflies, wasps, thrips, and beetles. Cultivated plants are typically pollinated by animals. Animal-based pollination contributes to 30% of global food production, and bee-pollinated crops contribute to approximately one-third of the total human dietary supply. Bees are considered significant pollinators due to their effectiveness and wide availability. Bee pollination provides excellent value to crop quality and quantity, improving global economic and dietary outcomes. This review highlights the role played by bee pollination, which influences the economy, and enlists the different types of bees and other insects associated with pollination.

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Pollinator Preferences for Floral Volatiles Emitted by Dimorphic Anthers of a Buzz-Pollinated Herb

Cited by 29 publications

References 43 publications

Reduced visitation to the buzz-pollinatedCyanella hyacinthoidesin the presence of other pollen sources in the hyperdiverse Cape Floristic Region

Reduced visitation to the buzz-pollinatedCyanella hyacinthoidesin the presence of other pollen sources in the hyperdiverse Cape Floristic Region

Reduced visitation to buzz‐pollinated Cyanella hyacinthoides in the presence of other pollen sources in the hyperdiverse Cape Floristic Region

Overview of Bee Pollination and Its Economic Value for Crop Production

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