Results 21 to 30 of about 14,348 (251)
FLORAL DISPLAY IN PHLOX AND GERANIUM: ADAPTIVE ASPECTS [PDF]
Evolution, 1979 Floral displays are subject to selection pressures from several different factors, including pollinator attraction, competition for mates, time available for flowering and seed maturation, seed dispersal and predation (e.g., Janzen, 1969, 1977; Mulligan and Kevan, 1973; Stebbins, 1974; Willson, 1978).
Mary F, Willson +2 more
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Floral displays suffer from sulphur deprivation
Environmental and Experimental Botany, 2021 Nutrient deficiency is known to constrain plant growth in numerous ways, but how it impacts floral displays and pollination success remains unclear. Here we investigate how insufficient availability of sulphur – a vital plant nutrient that is a limiting factor in natural and agricultural regions throughout the world – influences the production of ...
Ties Ausma +8 more
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Warm Temperatures Reduce Flower Attractiveness and Bumblebee Foraging
Insects, 2021 (1) Background: Plants attract pollinators using several visual signals, mainly involving the display, size, shape, and color of flowers. Each signal is relevant for pollinators foraging for floral rewards, pollen, and nectar.
Charlotte Descamps +3 more
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Comparative Nectary Morphology across Cleomaceae (Brassicales)
Plants, 2023 Floral nectaries have evolved multiple times and rapidly diversified with the adaptive radiation of animal pollinators. As such, floral nectaries exhibit extraordinary variation in location, size, shape, and secretory mechanism.
Brandi Zenchyzen +6 more
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Effects of Floral and Foliage Displays on Human Emotions [PDF]
HortTechnology, 2000 Changes in human emotions were investigated during exposure to three different indoor conditions: floral display present, foliage display present, and no display present. There were 20 subjects (10 males and 10 females) in each condition. The subjects were shown a video that introduced the University of Reading and included scenes of landscapes. It was
M. Adachi, C.L.E. Rohde, A. D. Kendle
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Indirect Selection on Flower Color in Silene littorea
Frontiers in Plant Science, 2020 Flower color, as other floral traits, may suffer conflicting selective pressures mediated by both mutualists and antagonists. The maintenance of intraspecific flower color variability has been usually explained as a result of direct selection by biotic ...
Nancy L. Rodríguez-Castañeda +4 more
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The co-optimization of floral display and nectar reward
Journal of Biosciences, 2009 In most insect-pollinated flowers, pollinators cannot detect the presence of nectar without entering the flower. Therefore, flowers may cheat by not producing nectar and may still get pollinated. Earlier studies supported this 'cheater flower' hypothesis and suggested that the cost saving by cheater flowers could be the most predominant selective force
Prajakta V, Belsare +2 more
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Adaptive plasticity of floral display size in animal-pollinated plants [PDF]
Proceedings of the Royal Society B: Biological Sciences, 2005 Plants need not participate passively in their own mating, despite their immobility and reliance on pollen vectors. Instead, plants may respond to their recent pollination experience by adjusting the number of flowers that they display simultaneously.
Lawrence D, Harder, Steven D, Johnson
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EVOLUTION OF FLORAL DISPLAY IN THE ORCHID BRASSAVOLA NODOSA [PDF]
Evolution, 1980 The evolutionary consequences of varying the density and dispersion of flowers on a plant include the effect on pollinator movement (Heinrich and Raven, 1972; Frankie et al., 1976; Stiles, 1975; Schemske, in press), predator pressure (Beattie et al., 1973), and reproductive success (Janzen, 1977; Schemske, 1978; Schemske, in press).
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The influence of floral display size on selfing rates in Mimulus ringens [PDF]
Heredity, 2003 Pollinators often visit several flowers in sequence on plants with large floral displays. This foraging pattern is expected to influence the rate of self-fertilization in self-compatible taxa. To quantify the effects of daily floral display on pollinator movements and selfing, we experimentally manipulated flower number in four replicate (cloned ...
J D, Karron +4 more
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