Relevant bibliographies by topics / Rewardless flowers

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'Rewardless flowers'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 February 2022

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Journal articles on the topic "Rewardless flowers"

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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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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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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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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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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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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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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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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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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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Dissertations / Theses on the topic "Rewardless flowers"

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Pearn, Melissa. "Pollination and comparative reproductive success of lady's slipper orchids Cypripedium candidum, C. parviflorum, and their hybrids in southern Manitoba." 2013. http://hdl.handle.net/1993/15341.

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I investigated how orchid biology, floral morphology, and diversity of surrounding floral and pollinator communities affected reproductive success and hybridization of Cypripedium candidum and C. parviflorum. Floral dimensions, including pollinator exit routes were smallest in C. candidum, largest in C. parviflorum, with hybrids intermediate and overlapping with both. This pattern was mirrored in the number of insect visitors, fruit set, and seed set. Exit route size seemed to restrict potential pollinators to a subset of visiting insects, which is consistent with reports from other rewardless
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