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Journal articles on the topic 'Rewardless flowers'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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1

Lichtenberg, Elinor M., Jacob M. Heiling, Judith L. Bronstein, and Jessica L. Barker. "Noisy communities and signal detection: why do foragers visit rewardless flowers?" Philosophical Transactions of the Royal Society B: Biological Sciences 375, no. 1802 (2020): 20190486. http://dx.doi.org/10.1098/rstb.2019.0486.

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Floral communities present complex and shifting resource landscapes for flower-foraging animals. Strong similarities among the floral displays of different plant species, paired with high variability in reward distributions across time and space, can weaken correlations between floral signals and reward status. As a result, it should be difficult for foragers to discriminate between rewarding and rewardless flowers. Building on signal detection theory in behavioural ecology, we use hypothetical probability density functions to examine graphically how plant signals pose challenges to forager de

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2

Ito, Koichi, Miki F. Suzuki, and Ko Mochizuki. "Evolution of honest reward signal in flowers." Proceedings of the Royal Society B: Biological Sciences 288, no. 1943 (2021): 20202848. http://dx.doi.org/10.1098/rspb.2020.2848.

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Some flowering plants signal the abundance of their rewards by changing their flower colour, scent or other floral traits as rewards are depleted. These floral trait changes can be regarded as honest signals of reward states for pollinators. Previous studies have hypothesized that these signals are used to maintain plant-level attractiveness to pollinators, but the evolutionary conditions leading to the development of honest signals have not been well investigated from a theoretical basis. We examined conditions leading to the evolution of honest reward signals in flowers by applying a theoret

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3

Kidyoo, Aroonrat Meekijjaroenroj, and Doyle McKey. "Flowering phenology and mimicry of the rattan Calamus castaneus (Arecaceae) in southern Thailand." Botany 90, no. 9 (2012): 856–65. http://dx.doi.org/10.1139/b2012-058.

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In the insect-pollinated dioecious rattan Calamus castaneus Griff., nectar and pollen rewards, together with visual and olfactory cues, attract insects to male flowers. Pistillate flowers are apparently rewardless. Here, we aimed to clarify the mechanisms assuring visitation and pollination of female flowers. We studied features of flowering phenology and floral biology that affect pollination success of plants of both sexes. The results show that C. castaneus features a striking system of mimicry, quite different from those studied previously in other dioecious plants. The population of C. ca

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4

Zhang, Wenliu, and Jiangyun Gao. "High fruit sets in a rewardless orchid: a case study of obligate agamospermy in Habenaria." Australian Journal of Botany 66, no. 2 (2018): 144. http://dx.doi.org/10.1071/bt17182.

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Low fruit set and pollination limitation are common characteristics of non-autogamous orchids, especially in rewardless species. The flowers of many Habenaria species are often characterised by long spurs and are mostly pollinated by long-tongued hawkmoths or butterflies. Unlike the flowers of other Habenaria species, the flowers of Habenaria malintana (Blanco) Merr. have very short spurs with no nectar or scent; however, this species is able to maintain high fecundity in south-west China. Breeding system experiments suggested that H. malintana is an obligate agamospermous orchid. Seed set did

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Lev-Yadun, Simcha. "Müllerian and Batesian mimicry out, Darwinian and Wallacian mimicry in, for rewarding/rewardless flowers." Plant Signaling & Behavior 13, no. 6 (2018): e1480846. http://dx.doi.org/10.1080/15592324.2018.1480846.

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6

Phillips, Ryan D., and Michael Batley. "Evidence for a food-deceptive pollination system using Hylaeus bees in Caladenia hildae (Orchidaceae)." Australian Journal of Botany 68, no. 2 (2020): 146. http://dx.doi.org/10.1071/bt20002.

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Numerous orchid species are pollinated by food deception, where rewardless flowers attract foraging pollinators through the mimicry of other flowers or the use of non-specific floral signals. Here we investigate the pollination of Caladenia hildae, a member of a diverse Australian genus containing species pollinated by sexual deception, and species pollinated by food foraging pollinators. Despite eight bee species occurring at the main study site, only food foraging bees of a single species of Hylaeus (Colletidae) were observed to remove and deposit pollen of C. hildae. Spectral reflectance of

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7

Scaccabarozzi, Daniela, Lorenzo Guzzetti, Ryan D. Phillips, et al. "Ecological factors driving pollination success in an orchid that mimics a range of Fabaceae." Botanical Journal of the Linnean Society 194, no. 2 (2020): 253–69. http://dx.doi.org/10.1093/botlinnean/boaa039.

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Abstract Rewarding plants can enhance the pollination success of co-occurring plants pollinated by food mimicry. However, it is not always possible to readily discern between the effect of model and magnet species. Here, we tested for mimicry of co-occurring Fabaceae by the rewardless Diuris magnifica (Orchidaceae) and whether the number of flowers of Fabaceae, habitat remnant size and frequency of conspecifics, influenced the pollination success of D. magnifica. Trichocolletes bees were the primary pollinators of D. magnifica, on which they displayed similar behaviour as seen when feeding on

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8

Pansarin, Emerson R., Antonio Salatino, Ludmila M. Pansarin, and Marlies Sazima. "Pollination systems in Pogonieae (Orchidaceae: Vanilloideae): A hypothesis of evolution among reward and rewardless flowers." Flora - Morphology, Distribution, Functional Ecology of Plants 207, no. 12 (2012): 849–61. http://dx.doi.org/10.1016/j.flora.2012.09.011.

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9

Vlasáková, Blanka. "Density dependence in flower visitation rates of cockroach-pollinated Clusia blattophila on the Nouragues inselberg, French Guiana." Journal of Tropical Ecology 31, no. 1 (2014): 95–98. http://dx.doi.org/10.1017/s0266467414000571.

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Abstract:The effective floral neighbourhood is the radius around a plant where the density of flowering plants and other factors affect visitation rates and pollination success of plants. This study aims to determine this radius and focuses on the effects of conspecific plant density, plant sex and the amount of shrub vegetation on visitation rates of Clusia blattophila, a dioecious bush pollinated by Amazonina platystylata cockroaches. The number of visits did not differ between flower sexes but cockroaches spent less time on the rewardless female flowers. The density effect was scale depende

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10

Kelly, M. M., and A. C. Gaskett. "UV reflectance but no evidence for colour mimicry in a putative brood-deceptive orchid Corybas cheesemanii." Current Zoology 60, no. 1 (2014): 104–13. http://dx.doi.org/10.1093/czoolo/60.1.104.

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Abstract Rewardless orchids attract pollinators by food, sexual, and brood-site mimicry, but other forms of sensory deception may also operate. Helmet orchids (Corybas, Nematoceras and related genera) are often assumed to be brood-site deceivers that mimic the colours and scents of mushrooms to fool female fungus gnats (Mycetophilidae) into attempting oviposition and pollinating flowers. We sampled spectral reflectances and volatile odours of an endemic terrestrial New Zealand orchid Corybas cheesemanii, and co-occurring wild mushrooms. The orchid is scentless to humans and SPME GC-MS analyses

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11

Grantham, M. A., B. A. Ford, and A. C. Worley. "Pollination and fruit set in two rewardless slipper orchids and their hybrids ( Cypripedium , Orchidaceae): large yellow flowers outperform small white flowers in the northern tall grass prairie." Plant Biology 21, no. 6 (2019): 997–1007. http://dx.doi.org/10.1111/plb.13026.

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12

Gigord, L. D. B., M. R. Macnair, and A. Smithson. "Negative frequency-dependent selection maintains a dramatic flower color polymorphism in the rewardless orchid Dactylorhiza sambucina (L.) Soo." Proceedings of the National Academy of Sciences 98, no. 11 (2001): 6253–55. http://dx.doi.org/10.1073/pnas.111162598.

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13

SUN, HAI-QIN, RONNY ALEXANDERSSON, and SONG GE. "Positive effects of flower abundance and synchronous flowering on pollination success, and pollinia dispersal in rewardless Changnienia amoena (Orchidaceae)." Biological Journal of the Linnean Society 99, no. 3 (2010): 477–88. http://dx.doi.org/10.1111/j.1095-8312.2009.01369.x.

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14

Pellegrino, G., D. Caimi, M. E. Noce, and A. Musacchio. "Effects of local density and flower colour polymorphism on pollination and reproduction in the rewardless orchid Dactylorhiza sambucina (L.) So�." Plant Systematics and Evolution 251, no. 2-4 (2005): 119–29. http://dx.doi.org/10.1007/s00606-004-0248-6.

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15

Internicola, Antonina I., and Lawrence D. Harder. "Bumble-bee learning selects for both early and long flowering in food-deceptive plants." Proceedings of the Royal Society B: Biological Sciences 279, no. 1733 (2011): 1538–43. http://dx.doi.org/10.1098/rspb.2011.1849.

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Most rewardless orchids engage in generalized food-deception, exhibiting floral traits typical of rewarding species and exploiting the instinctive foraging of pollinators. Generalized food-deceptive (GFD) orchids compete poorly with rewarding species for pollinator services, which may be overcome by flowering early in the growing season when relatively more pollinators are naive and fewer competing plant species are flowering, and/or flowering for extended periods to enhance the chance of pollinator visits. We tested these hypotheses by manipulating flowering time and duration in a natural pop

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16

Ogawa, Yuina, and Takashi Miyake. "How do rewardless Bletilla striata flowers attract pollinators to achieve pollination?" Plant Systematics and Evolution 306, no. 5 (2020). http://dx.doi.org/10.1007/s00606-020-01709-0.

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17

Russell, Avery L., Stephanie R. Sanders, Liam A. Wilson, and Daniel R. Papaj. "The Size of it: Scant Evidence That Flower Size Variation Affects Deception in Intersexual Floral Mimicry." Frontiers in Ecology and Evolution 9 (August 25, 2021). http://dx.doi.org/10.3389/fevo.2021.724712.

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Mutualisms involve cooperation, but also frequently involve conflict. Plant-pollinator mutualisms are no exception. To facilitate animal pollination, flowering plants often offer pollen (their male gametes) as a food reward. Since plants benefit by maximizing pollen export to conspecific flowers, we might expect plants to cheat on pollen rewards. In intersexual floral mimicry, rewarding pollen-bearing male flowers (models) are mimicked by rewardless female flowers (mimics) on the same plant. Pollinators should therefore learn to avoid the unrewarding mimics. Plants might impede such learning b

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18

Pansarin, Emerson R. "Recent advances on evolution of pollination systems and reproductive biology of Vanilloideae (Orchidaceae)." Lankesteriana 16, no. 2 (2016). http://dx.doi.org/10.15517/lank.v16i2.26010.

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Vanilloideae as currently circumscribed comprises nine genera and two tribes: Vanilleae and Pogonieae. The pantropical genus Vanilla has been frequently assumed to be natural on the basis of its climbing habit and lateral inflorescences. However, the inclusion of the rare Dictyophyllaria dietschiana in phylogenetic analyses makes the genus Vanilla paraphyletic. Within Pogonieae, phylogenetic analyses show that inclusion of Pogoniopsis turns the tribe paraphyletic. All analyses reveal that Pogoniopsis is closely related to members of Epidendroideae. Members of Pogonieae are pollinated by severa

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19

Katz, Emma J., and Carla J. Essenberg. "The effect of the dispersion of rewarding and rewardless flowers on visitation and constancy by bumblebees (Bombus impatiens)." Journal of Pollination Ecology 23 (2018). http://dx.doi.org/10.26786/1920-7603(2018)14.

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20

Lipińska, Monika M., Natalia Wiśniewska, Marek Gołębiowski, Magdalena Narajczyk, and Agnieszka K. Kowalkowska. "Floral micromorphology, histochemistry, ultrastructure and chemical composition of floral secretions in three Neotropical Maxillariella species (Orchidaceae)." Botanical Journal of the Linnean Society, December 31, 2020. http://dx.doi.org/10.1093/botlinnean/boaa095.

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Abstract Floral morphological adaptations and composition of secretions aim to ensure reproductive success. Maxillariella is part of the largest subtribe of Orchidaceae, and Maxillariella spp. are important components of the orchid flora of the Neotropics. The aim of this paper was to provide a detailed study of the reproductive biology of three morphologically and geographically distinct species: M. sanguinea, M. variabilis and M. vulcanica. For many years, species in this group were considered rewardless, but several studies have revealed that lips of some species may secrete resins. However

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21

"Correction for Gigord et al., Negative frequency-dependent selection maintains a dramatic flower color polymorphism in the rewardless orchid Dactylorhiza sambucina (L.) Soo, PNAS 2001 98:6253-6255." Proceedings of the National Academy of Sciences 101, no. 20 (2004): 7839. http://dx.doi.org/10.1073/pnas.0308117101.

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