Results 31 to 40 of about 2,036 (250)
Herbivory and Time Since Flowering Shape Floral Rewards and Pollinator-Pathogen Interactions [PDF]
Journal of Chemical Ecology, 2020 Herbivory can induce chemical changes throughout plant tissues including flowers, which could affect pollinator-pathogen interactions. Pollen is highly defended compared to nectar, but no study has examined whether herbivory affects pollen chemistry. We assessed the effects of leaf herbivory on nectar and pollen alkaloids in Nicotiana tabacum, and how ...
Luis A. Aguirre +3 more
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The evolution of floral scent: the influence of olfactory learning by insect pollinators on the honest signalling of floral rewards [PDF]
Functional Ecology, 2009 Summary1. The evolution of flowering plants has undoubtedly been influenced by a pollinator’s ability to learn to associate floral signals with food. Here, we address the question of ‘why’ flowers produce scent by examining the ways in which olfactory learning by insect pollinators could influence how floral scent emission evolves in plant populations ...
Wright GA, Schiestl FP
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Micromorphological and histochemical attributes of flowers and floral reward in Linaria vulgaris (Plantaginaceae) [PDF]
Protoplasma, 2018 The self-incompatible flowers of Linaria vulgaris have developed a range of mechanisms for attraction of insect visitors/pollinators and deterrence of ineffective pollinators and herbivores. These adaptive traits include the flower size and symmetry, the presence of a spur as a "secondary nectar presenter," olfactory (secondary metabolites) and sensual
Jachuła, Jacek +2 more
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Floral Reward In Ranunculaceae Species
, 2016 Floral reward is important in ecological and evolutionary perspectives and essential in pollination biology. For example, floral traits, nectar and pollen features are essential for understanding the functional ecology, the dynamics of pollen transport, competition for pollinator services, and patterns of specialization and generalization in plant ...
Denisow B. +2 more
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Bumblebee responses to variation in pollinator‐attracting traits of Vicia faba flowers
Ecology and Evolution, 2023 Adaptations that attract pollinators to flowers are central to the reproductive success of insect‐pollinated plants, including crops. Understanding the influence of these non‐rewarding traits on pollinator preference is important for our future food ...
Emily J. Bailes +6 more
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Plants, 2021 Floral development depends on multifactor processes related to genetic, physiological, and ecological pathways. Plants respond to herbivores by activating mechanisms aimed at tolerating, compensating, or avoiding loss of biomass and nutrients, and ...
Sandra V. Rojas-Nossa +2 more
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Floral scent in Iris planifolia (Iridaceae) suggests food reward
Phytochemistry, 2019 Iris species can adopt different pollination strategies to attract their pollinators, generalized shelter-mimicking, specialized deceptive sexual-mimicking or food-rewarding. As attractive stimuli, Iris flowers may use their colours, large-size, symmetry, and volatile organic compounds (VOCs).
Zito, Pietro +4 more
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A Transferrable Change in Preferences of Floral Patterns by Bumblebees through Reward Reversal [PDF]
International Journal of Comparative Psychology, 2017 This study examines the use behavioral transfer across perceptually similar stimuli in bumblebees (Bombus impatiens) and addresses whether foraging judgments about a floral stimulus can change in a way that contradicts direct previous experience with that stimulus.
Xu, Vicki, Plowright, Catherine
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Pterandric Acid – its Isolation, Synthesis and Stereochemistry
Natural Product Communications, 2015 Some plant families have a specialized type of pollination system, with floral lipid rewards for pollinators, which is common. In neotropical Malpighiaceae species like Pterandra pyroidea , this specialized type of pollination system is apparently ...
Muhammad A. Haleem +3 more
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Leaf herbivory imposes fitness costs mediated by hummingbird and insect pollinators. [PDF]
PLoS ONE, 2017 Plant responses induced by herbivore damage can provide fitness benefits, but can also have important costs due to altered interactions with mutualist pollinators.
Alexander Chautá +3 more
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