Debates: The Aggressive Spillover Hypothesis: Existing Ailments and Putative Remedies

Ethology ◽  
2013 ◽  
Vol 119 (10) ◽  
pp. 807-810 ◽  
Author(s):  
Jonathan N. Pruitt ◽  
Carl N. Keiser
Keyword(s):  

2021 ◽  
Author(s):  
Pietro Pollo ◽  
Nathan W Burke ◽  
Gregory I Holwell

Behaviours that are consistent across contexts (also known as behavioural syndromes) can have evolutionary implications, but their role in scenarios where the sexes conflict, such as sexual cannibalism, is poorly understood. The aggressive spillover hypothesis proposes that cannibalistic attacks during adulthood may depend on female aggressiveness during earlier developmental stages, but evidence for this hypothesis is scarce. Male activity may also influence sexual cannibalism if males approach females quickly and carelessly, yet this has not been explored. Here we use the Springbok mantis, Miomantis caffra, to explore whether male activity levels and female aggressiveness can explain high rates of sexual cannibalism prior to copulation. We show that male and female personality traits affect male mating decisions, but not sexual cannibalism. Females that were aggressive as juveniles were not more likely to cannibalize males when adult, but these females were approached by males more frequently. More active males were more likely to approach females, but they were neither faster at doing so nor were they more likely to be cannibalized. We also found that size and age influenced mating decisions of both sexes: young females were more like to cannibalize males while young and large males took longer to approach females. Taken together, our results suggest that several traits, including personality, play a role in sexual encounters in M. caffra. Our study further highlights the importance of examining the traits of both sexes when assessing mating dynamics, especially in the context of sexual cannibalism.



2016 ◽  
Author(s):  
Monica Nordberg ◽  
Douglas M. Templeton ◽  
Ole Andersen ◽  
John H. Duffus
Keyword(s):  




Ethology ◽  
2013 ◽  
Vol 119 (10) ◽  
pp. 811-813 ◽  
Author(s):  
James Chadwick Johnson
Keyword(s):  


2018 ◽  
Vol 7 (4) ◽  
pp. 195
Author(s):  
Chakrapani Chaturvedula ◽  
Nikhil Rastogi

We study the impact of price bands in the Indian capital markets and following the methodology of Kim and Rhee (1997) we do not find evidence in support of the volatility spillover hypothesis. Our evidence suggests that price limits does not hinder the price discovery process and may play an important role in reducing the volatility of stock prices in the emerging markets like India.



2020 ◽  
Author(s):  
Laura Hanson Schlachter ◽  
Kristinn Már

Few studies have critically examined underlying assumptions of the civic spillover hypothesis that participation at work begets participation in civic life. We complicate extant theory by employing mixed methods and the most systematic dataset collected to date on firms fully owned and democratically governed by workers in the United States. Our findings about motivation to join participatory workplaces, substitution of workplace for civic engagement, and permeability of the boundary between professional and civic spheres lay the groundwork for a new conceptual model of civic spillover that illuminates the black box of this social process and sheds light on debates about the implications of workplace structure for democracy in America.



2015 ◽  
Vol 40 (3) ◽  
Author(s):  
Oliver Arránz Becker

Using data of the German Family Panel pairfam, this article examines whether relationship-related transitions among adolescents and adults – separations with or without subsequent new relationships and transitions from being single to a relationship – impact different aspects of their relationship with their parents (contact frequency, intimacy, and conflict). Several competing hypotheses are tested. The resource hypothesis, following a supply-side argumentation, posits that relationships generate resources (i.e. social capital) that facilitate exchange with parents; relationship breakup implies resource deprivation and produces strain, which adversely affects the parent-child relationship (spillover hypothesis). According to the demand-based compensation hypothesis, horizontal relationships and vertical intergenerational relations are substitutively associated with each other; hence, exchanges between generations should be strongest when children are not involved in romantic relationships. The analyses yield evidence in line with both the compensation hypothesis (particularly among adolescents) and the spillover hypothesis (among adults). The effects are largely gender neutral.



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