Dataset Information

Flowers help bees cope with uncertainty: signal detection and the function of floral complexity.

ABSTRACT: Plants often attract pollinators with floral displays composed of visual, olfactory, tactile and gustatory stimuli. Since pollinators' responses to each of these stimuli are usually studied independently, the question of why plants produce multi-component floral displays remains relatively unexplored. Here we used signal detection theory to test the hypothesis that complex displays reduce a pollinator's uncertainty about the floral signal. Specifically, we asked whether one component of the floral display, scent, improved a bee's certainty about the value of another component, color hue. We first trained two groups of bumble bees (Bombus impatiens Cresson) to discriminate between rewarding and unrewarding artificial flowers of slightly different hues in the presence vs absence of scent. In a test phase, we presented these bees with a gradient of floral hues and assessed their ability to identify the hue rewarded during training. We interpreted the extent to which bees' preferences were biased away from the unrewarding hue ('peak shift') as an indicator of uncertainty in color discrimination. Our data show that the presence of an olfactory signal reduces uncertainty regarding color: not only was color learning facilitated on scented flowers but also bees showed a lower amount of peak shift in the presence of scent. We explore potential mechanisms by which scent might reduce uncertainty about color, and discuss the broader significance of our results for our understanding of signal evolution.

SUBMITTER: Leonard AS

PROVIDER: S-EPMC2999516 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature

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Flowers help bees cope with uncertainty: signal detection and the function of floral complexity.

Leonard Anne S AS Dornhaus Anna A Papaj Daniel R DR

The Journal of experimental biology 20110101 Pt 1

Plants often attract pollinators with floral displays composed of visual, olfactory, tactile and gustatory stimuli. Since pollinators' responses to each of these stimuli are usually studied independently, the question of why plants produce multi-component floral displays remains relatively unexplored. Here we used signal detection theory to test the hypothesis that complex displays reduce a pollinator's uncertainty about the floral signal. Specifically, we asked whether one component of the flor ...[more]

PMID: 21147975

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Project description:The COVID-19 pandemic is also called a crisis of uncertainty because of so many unforeseeable events like canceled qualification competitions, loss of training facilities, and postponement of the Olympic games. Athletes and their entourage experience this uncertainty as stressful. Sport psychology practitioners (SPPs) are in a key position to support athletes in coping with these unforeseeable stressors. However, SPPs are similarly affected by the COVID-19 pandemic and simultaneously have to cope with stress. Salutogenesis, which describes how to manage stress and to stay well, provides a theoretical approach to how to cope with uncertainty. The salutogenetic approach aims at strengthening individuals' sense of coherence (SoC) and consists of three components, namely comprehensibility, manageability, and meaningfulness. Although it is known that the SoC can be enhanced via psychological skills training, so far, this approach has not been systematically applied to the elite sport context. Athletes have been advised to see SPPs for help; thus, the question of how SPPs handle the time of uncertainty while supporting others emerges. The aim of this contribution was to outline how the salutogenetic approach can be applied to strengthening SPPs' SoC via a single-day four-part workshop. Additionally, we applied the workshop to N = 26 volleyball coaches and evaluated the workshop's effects on participants' psychological aspects [i.e., the Sense of Coherence-Leipziger short version (SoC-L9), resilience (RS-13): coping with uncertainty, affective response, and stress via semantic differentials] and the workshop's quality ratings (i.e., Quality Questionnaire for Sport Psychological Coaching, QS-17). The evaluation provides results that show a positive impact on a descriptive level of the participants' SoC, uncertainty, affect, and stress perception; however, the results show no significant main effect of time [F(8, 10) = 1.04, p = 0.467, η p 2 = 0.454]. Workshop quality (on average, 3.60 ± 0.35 out of 4.00) and skill acquisition (on average, 3.00 ± 0.64 out of 4.00) were positively evaluated; 82.00% of the participants would use the learned tools in the future. Thus, we outline how this workshop might help strengthen SPPs' SoC and at the same time empower them to strengthen their athletes' SoC. Overall, we add a theoretical (i.e., salutogenesis in sports) and a practical perspective (i.e., coping techniques based on salutogenesis) on how to cope with the COVID-19 pandemic for SPPS, athletes, and their support network.

Dataset Information

Flowers help bees cope with uncertainty: signal detection and the function of floral complexity.

Publications

Flowers help bees cope with uncertainty: signal detection and the function of floral complexity.

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