Endocrine Disrupting Compounds Alter Risk-Taking Behavior in Guppies (Poecilia reticulata)

Ethology ◽  
2015 ◽  
Vol 121 (5) ◽  
pp. 480-491 ◽  
Author(s):  
Melissa M. Heintz ◽  
Susanne M. Brander ◽  
James W. White
Keyword(s):  
Risk Taking ◽  
Poecilia Reticulata ◽  
Endocrine Disrupting Compounds ◽  
Endocrine Disrupting ◽  
Risk Taking Behavior

scholarly journals Guppies prefer to follow large (robot) leaders irrespective of own size

2018 ◽  
Author(s):  
David Bierbach ◽  
Hauke J. Mönck ◽  
Juliane Lukas ◽  
Marie Habedank ◽  
Pawel Romanczuk ◽  
...  
Keyword(s):  
Body Size ◽  
Risk Taking ◽  
Poecilia Reticulata ◽  
Direct Evidence ◽  
Behavioral Patterns ◽  
Behavioral Differences ◽  
Leaders And Followers ◽  
Biomimetic Robotic Fish ◽  
Risk Taking Behavior ◽  
Swimming Capacity

AbstractBody size is often assumed to determine how successful an individual can lead others with larger individuals being more likely to lead than smaller ones. However, direct evidence for such a relation is scarce. Furthermore, even if larger individuals are more likely to lead, body size correlates often with specific behavioral patterns (e.g., swimming capacity) and it is thus unclear whether larger individuals are more often followed than smaller ones because they are larger or because they behave in a certain way. To control for behavioral differences among differentially-sized leaders, we used biomimetic robotic fish – Robofish – of different sizes. Robofish is accepted as a conspecific by live guppies (Poecilia reticulata) and provides standardized behaviors irrespective of its size. We specifically asked whether larger leaders are preferentially followed when behavior is controlled for and whether the preferences of followers depend on their own body size or their risk taking behavior (‘boldness’). We found that live guppies followed larger Robofish leaders closer than smaller ones and this pattern was independent of the followers’ own body size as well as risk-taking behavior. This is the first study that shows a ‘bigger is better’ pattern in leadership in shoaling fish that is fully independent of behavioral differences between differentially-sized leaders and followers’ own size and personality.

Predicting Stock Market Performance

2020 ◽  
pp. 1-10
Author(s):  
Thomas Plieger ◽  
Thomas Grünhage ◽  
Éilish Duke ◽  
Martin Reuter
Keyword(s):  
Stock Market ◽  
Risk Taking ◽  
Life Stress ◽  
Price Volatility ◽  
Individual Characteristics ◽  
Self Report ◽  
Financial Behavior ◽  
Market Simulation ◽  
Stock Market Performance ◽  
Risk Taking Behavior

Abstract. Gender and personality traits influence risk proneness in the context of financial decisions. However, most studies on this topic have relied on either self-report data or on artificial measures of financial risk-taking behavior. Our study aimed to identify relevant trading behaviors and personal characteristics related to trading success. N = 108 Caucasians took part in a three-week stock market simulation paradigm, in which they traded shares of eight fictional companies that differed in issue price, volatility, and outcome. Participants also completed questionnaires measuring personality, risk-taking behavior, and life stress. Our model showed that being male and scoring high on self-directedness led to more risky financial behavior, which in turn positively predicted success in the stock market simulation. The total model explained 39% of the variance in trading success, indicating a role for other factors in influencing trading behavior. Future studies should try to enrich our model to get a more accurate impression of the associations between individual characteristics and financially successful behavior in context of stock trading.

Risk-Taking Behavior Associated With Affective States

2014 ◽  
Author(s):  
Ari B. Deutsch ◽  
Michael Koren ◽  
Rachel Moody
Keyword(s):  
Risk Taking ◽  
Affective States ◽  
Risk Taking Behavior

Differences in Risk-Taking Behavior Between Insured and Uninsured Rural Patients

2012 ◽  
Author(s):  
K. Bryant Smalley ◽  
Jacob C. Warren ◽  
Lisa Watson-Johnson ◽  
Nikki Barefoot ◽  
Sean Fowler
Keyword(s):  
Risk Taking ◽  
Risk Taking Behavior ◽  
Rural Patients

An exploratory study of adolescent and young adult drinking and risk-taking behavior

2010 ◽  
Author(s):  
Stacy Simonsen ◽  
Krista Fritson ◽  
Katharine A. Mcintyre ◽  
Shawna Mowrer
Keyword(s):  
Young Adult ◽  
Risk Taking ◽  
Exploratory Study ◽  
Adolescent And Young Adult ◽  
Risk Taking Behavior
Sign in / Sign up

Export Citation Format

Share Document