Spatiotemporal variation in the role of floral traits in shaping tropical plant‐pollinator interactions

2022 ◽  
Author(s):  
Yannick Klomberg ◽  
Robert Tropek ◽  
Jan E. J. Mertens ◽  
Ishmeal N. Kobe ◽  
Jiří Hodeček ◽  
...  
Keyword(s):  
Spatiotemporal Variation ◽  
Floral Traits ◽  
Tropical Plant ◽  
Plant Pollinator

scholarly journals Visibility and attractiveness of Fritillaria (Liliaceae) flowers to potential pollinators

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Katarzyna Roguz ◽  
Laurence Hill ◽  
Sebastian Koethe ◽  
Klaus Lunau ◽  
Agata Roguz ◽  
...  
Keyword(s):  
Food Reward ◽  
Potential Role ◽  
Flower Colour ◽  
Floral Traits ◽  
Nectar Guides ◽  
Flower Colours ◽  
Visual Attraction ◽  
Floral Characters ◽  
Plant Pollinator

AbstractVisual floral characters play an important role in shaping plant-pollinator interactions. The genus Fritillaria L. (Liliaceae), comprising approximately 140 species, is described as displaying a remarkable variety of flower colours and sizes. Despite this variation in visual floral traits of fritillaries, little is known about the potential role of these features in shaping plant-pollinator interactions. Here, we seek to clarify the role of visual attraction in species offering a robust food reward for pollinators early in the spring, which is the case for Fritillaria. We also searched for potential tendencies in the evolution of floral traits crucial for plant-pollinator communication. The generality of species with green and purple flowers may indicate an influence of environmental factors other than pollinators. The flowers of the studied species seem to be visible but not very visually attractive to potential pollinators. The food rewards are hidden within the nodding perianth, and both traits are conserved among fritillaries. Additionally, visual floral traits are not good predictors of nectar properties. When in the flowers, pollinators are navigated by nectar guides in the form of contrasting nectary area colouration. Flower colour does not serve as a phenotypic filter against illegitimate pollinators—red and orange bird-pollinated fritillaries are visible to bees.

scholarly journals Spatiotemporal shifts in the role of floral traits in shaping tropical plant-pollinator interactions

2020 ◽  
Author(s):  
Yannick Klomberg ◽  
Robert Tropek ◽  
Jan E.J. Mertens ◽  
Ishmeal N. Kobe ◽  
Jiří Hodeček ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Elevational Gradient ◽  
Floral Traits ◽  
Pollination Syndrome ◽  
Floral Trait ◽  
Mount Cameroon ◽  
Tropical Plant ◽  
Random Forest Models ◽  
Pollination Systems ◽  
Plant Pollinator

AbstractThe pollination syndrome hypothesis predicts that plants pollinated by the same pollinator group bear convergent combinations of specific floral traits. Nevertheless, some studies have shown relatively low predictive power for these floral trait combinations. This discrepancy may be caused by changes in the importance of specific floral traits for shaping interactions under different environmental conditions and for different pollinator groups. To test this, we studied pollination systems and floral traits along an elevational gradient on Mount Cameroon during wet and dry seasons. Using Random Forest models, allowing the ranking of traits by significance, we demonstrated that some floral traits are more important than others in shaping interactions and that these traits predict pollinators relatively well. However, the distribution and importance of traits varies under different environmental conditions. Our results imply the need to improve our trait-based understanding of plant-pollinator interactions to better inform the debate surrounding pollination syndrome hypothesis.

Coffee plant – pollinator interactions: a review

2011 ◽  
Vol 89 (8) ◽  
pp. 647-660 ◽  
Author(s):  
H.T. Ngo ◽  
A.C. Mojica ◽  
L. Packer
Keyword(s):  
Fruit Set ◽  
Current Understanding ◽  
Current Status ◽  
Agricultural Crops ◽  
Coffee Plant ◽  
Coffee Plants ◽  
Plant Pollinator

Coffee (genus Coffea  L.) is one of the most critical global agricultural crops. Many studies have focused on coffee plants and their associated insects. This review will summarize work specifically relating to coffee plant – pollinator interactions. We review the current status of coffee as a worldwide commodity, botanical aspects of coffee, and insects associated with coffee pollination, and we assess the current understanding of the role of different pollinator taxa in increasing fruit set and yield.

scholarly journals Signal or cue: the role of structural colors in flower pollination

2018 ◽  
Vol 65 (4) ◽  
pp. 467-481 ◽  
Author(s):  
Jair E Garcia ◽  
Mani Shrestha ◽  
Scarlett R Howard ◽  
Phred Petersen ◽  
Adrian G Dyer
Keyword(s):  
Spectral Characteristics ◽  
Visual Signal ◽  
Natural Conditions ◽  
Visual Appearance ◽  
Structural Colors ◽  
Flower Pollination ◽  
Insect Communication ◽  
Plant Pollinator ◽  
Insect Eye

AbstractAngle dependent colors, such as iridescence, are produced by structures present on flower petals changing their visual appearance. These colors have been proposed to act as signals for plant–insect communication. However, there is a paucity of behavioral data to allow for interpretations of how to classify these colors either as a signal or a cue when considering the natural conditions under which pollination occurs. We sampled flowers from 6 plant species across various viewpoints looking for changes in the visual appearance of the petals. Spectral characteristics were measured with different instruments to simulate both the spectral and spatial characteristics of honeybee’s vision. We show the presence of color patches produced by angle dependent effects on the petals and the calyx of various species; however, the appearance of the angle dependent color patches significantly varies with viewpoint and would only be resolved by the insect eye at close distances. Behavior experiments with honeybees revealed that pollinators did not use angle dependent colors to drive behavior when presented with novel flower presentations. Results show that angle dependent colors do not comply with the requirements of a signal for plant–pollinator communication since the information transmitted by these colors would be unreliable for potential, free-flying pollination vectors. We thus classify angle dependent colors produced by micro- and ultra-structures as being a cue (a feature which has not evolved for communication), and observe no evidence supporting claims of these angle dependent colors having evolved as visual signal.

scholarly journals The Role of Edaphic Environment and Climate in Structuring Phylogenetic Pattern in Seasonally Dry Tropical Plant Communities

PLoS ONE ◽  
2015 ◽  
Vol 10 (3) ◽  
pp. e0119166 ◽  
Author(s):  
Marcelo Freire Moro ◽  
Igor Aurélio Silva ◽  
Francisca Soares de Araújo ◽  
Eimear Nic Lughadha ◽  
Thomas R. Meagher ◽  
...  
Keyword(s):  
Plant Communities ◽  
Phylogenetic Pattern ◽  
Seasonally Dry ◽  
Tropical Plant ◽  
Tropical Plant Communities

scholarly journals The influence of floral traits on specialization and modularity of plant–pollinator networks in a biodiversity hotspot in the Peruvian Andes

2016 ◽  
Vol 118 (3) ◽  
pp. 415-429 ◽  
Author(s):  
Stella Watts ◽  
Carsten F. Dormann ◽  
Ana M. Martín González ◽  
Jeff Ollerton
Keyword(s):  
Biodiversity Hotspot ◽  
Floral Traits ◽  
Peruvian Andes ◽  
Plant Pollinator
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