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On the fate of sexual traits under asexuality
TLDR
The parallel maintenance versus decay of different trait types across diverse asexual lineages suggests that neutral traits display little or no decay even after extended periods under relaxed selection, while extensive decay for selected traits occurs extremely quickly. Expand
Iridescent flowers? Contribution of surface structures to optical signaling.
TLDR
The aim of the present study was to assess the contribution of structural coloration, including iridescence, to overall floral coloration and to hypothesized signaling by flowers with striated surfaces to attract potential pollinators presently seems untenable. Expand
The thermal ecology of flowers
TLDR
This review focuses on several attributes that modify exogenous heat absorption and retention in flowers and discusses how flower shape, orientation, heliotropic movements, pubescence, coloration, opening–closing movements and endogenous heating contribute to the thermal balance of flowers. Expand
Competition for pollinators and intra-communal spectral dissimilarity of flowers.
TLDR
Evidence is found for enhanced spectral dissimilarity among plant species within specialist pollinator guilds (i.e. groups of plant species competing for the same pollinator) with a focus on the pollination system. Expand
Functional significance of the optical properties of flowers for visual signalling
TLDR
Common aspects, such as chromatic and achromatic contrast, hue, saturation and brightness, as well as less common types of visual signals, including gloss, fluorescence, polarization and iridescence are discussed in the context of salience of floral colour signals and their evolution. Expand
How to colour a flower: on the optical principles of flower coloration
TLDR
This work uses an optical model to assess the contribution of different structures to the overall visual signal of flowers, and highlights that pigment localization crucially determines the efficiency of pigmentary filtering and thereby the chromatic contrast and saturation of the visual signal. Expand
Evolution and comparative ecology of parthenogenesis in haplodiploid arthropods
TLDR
The results strongly suggests that transitions to parthenogenesis are more frequent in large sexual populations and/or that the risk of extinction of parthenogens with large population sizes is reduced. Expand
Is floral iridescence a biologically relevant cue in plant-pollinator signaling?
TLDR
The previous statement that floral iridescence acting as signaling cue to pollinators is presently untenable is substantiated by presenting photographs of a number of different flowers with striated epidermal cells and a new set of angle-dependent reflectance measurements. Expand
Mapping of multiple complementary sex determination loci in a parasitoid wasp
TLDR
The results suggest that the molecular mechanisms underlying CSD in Hymenoptera are not conserved between species, raising the question as to whether CSD may have evolved multiple times independently in the group. Expand
Evolution of Insect Color Vision: From Spectral Sensitivity to Visual Ecology.
TLDR
Based on an overview of the current information about the spectral sensitivities of insect photoreceptors, covering 221 species in 13 insect orders, the evolution of color vision is discussed and present knowledge gaps and promising future research directions in the field are highlighted. Expand
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