scholarly journals Male-male aggression is unlikely to stabilize a poison frog polymorphism

2018 ◽  
Vol 31 (3) ◽  
pp. 457-468 ◽  
Author(s):  
Y. Yang ◽  
M. B. Dugas ◽  
H. J. Sudekum ◽  
S. N. Murphy ◽  
C. L. Richards-Zawacki
Keyword(s):  
Male Aggression ◽  
Poison Frog

Variation of Male–Male Aggression Patterns in Harbor Seals (Phoca vitulina)

2020 ◽  
Vol 46 (2) ◽  
pp. 119-123
Author(s):  
Anders Galatius ◽  
Jonas Teilmann ◽  
Jakob Tougaard ◽  
Rune Dietz
Keyword(s):  
Phoca Vitulina ◽  
Harbor Seals ◽  
Male Aggression

Bonobo baby dominance: Did female defense of offspring lead to reduced male aggression?

2018 ◽  
Author(s):  
Kara Walker ◽  
Brian Hare
Keyword(s):  
Adult Male ◽  
Social System ◽  
Dominant Species ◽  
Potential Solution ◽  
Adult Males ◽  
Male Aggression ◽  
Dominance Style ◽  
The Social ◽  
Initial Support

The dominance style of bonobos presents an evolutionary puzzle. Bonobos are not male dominant but female bonobos do not show traits typical of female-dominant species. This chapter proposes the offspring dominance hypothesis (ODH) as a potential solution. ODH suggests the social system of bonobos evolved as a defence against infanticide and is not due to pressure to monopolize resources. Females that prevented aggression towards offspring and preferred mating with less aggressive males were most successful. Supporting ODH, during observations at Lola ya Bonobo Sanctuary it was found that: 1) adult male bonobos are rarely aggressive towards offspring with mothers, 2) some mother-reared juvenile bonobos attain rank higher than adult males and 3) mother-reared offspring often socially interact with adult males without their mothers nearby. These preliminary findings provide initial support that the bonobo social system evolved due to fitness advantages of effectively protecting offspring against consequences of male aggression. Le style de dominance des bonobos présente un puzzle évolutionnaire. Les bonobos ne sont pas dominés par les mâles mais les bonobos femelles ne montrent pas les traits caractéristiques d’une espèce dominée par femelles. On propose l’hypothèse de dominance de progéniture (ODH) comme une solution potentielle. La ODH suggère que le système social des bonobos a évolué en défense contre l’infanticide et pas sous pression pour la monopolisation des ressources. Les femelles qui préviennent l’agression vers leur progéniture et leur préférence d’accouplement avec des mâles moins agressives étaient très efficaces. À l’appui de la ODH on a trouvé pendant nos observations à Lola ya Bonobo Sanctuary que: 1) les mâles adultes bonobos agressent rarement vers les bébés avec mères, 2) quelques adolescents bonobos qui furent élevés par leurs mères atteignent un rang plus haut que les mâles adultes et 3) la progéniture élevée par la mère interagissent avec avec d’adultes mâles sans la présence de leur mère. Ces trouvailles préliminaires donnent appuie à l’hypothèse que le système social des bonobos a évolué par les avantages corporelles de la protection de la progéniture contre les conséquences de l’agression mâle.

scholarly journals ‘Hangry’ Drosophila: food deprivation increases male aggression

2021 ◽  
Vol 177 ◽  
pp. 183-190
Author(s):  
Danielle Edmunds ◽  
Stuart Wigby ◽  
Jennifer C. Perry
Keyword(s):  
Food Deprivation ◽  
Male Aggression

Male aggression, limited female choice and the ontogeny of mating behaviour in the flesh flySarcophaga crassipalpis

2015 ◽  
Vol 40 (4) ◽  
pp. 325-335 ◽  
Author(s):  
J. Dylan Shropshire ◽  
Darrell Moore ◽  
Edith Seier ◽  
Karl H. Joplin
Keyword(s):  
Female Choice ◽  
Mating Behaviour ◽  
Male Aggression

Multimetric statistical analysis of behavior in mice selected for high and low levels of isolation-induced male aggression

2007 ◽  
Vol 75 (1) ◽  
pp. 23-32 ◽  
Author(s):  
O.Yu. Vekovischeva ◽  
E.V. Verbitskaya ◽  
T. Aitta-aho ◽  
K. Sandnabba ◽  
E.R. Korpi
Keyword(s):  
Statistical Analysis ◽  
Male Aggression ◽  
Low Levels

scholarly journals Erratum to: Ant and Mite Diversity Drives Toxin Variation in the Little Devil Poison Frog

2016 ◽  
Vol 42 (8) ◽  
pp. 849-849
Author(s):  
Jenna R. McGugan ◽  
Gary D. Byrd ◽  
Alexandre B. Roland ◽  
Stephanie N. Caty ◽  
Nisha Kabir ◽  
...  
Keyword(s):  
Poison Frog

Sequestered and Synthesized Chemical Defenses in the Poison Frog Melanophryniscus moreirae

2015 ◽  
Vol 41 (5) ◽  
pp. 505-512 ◽  
Author(s):  
Adriana M. Jeckel ◽  
Taran Grant ◽  
Ralph A. Saporito
Keyword(s):  
Chemical Defenses ◽  
Poison Frog

scholarly journals Asymmetries in male aggression across an avian hybrid zone

2000 ◽  
Vol 11 (1) ◽  
pp. 93-101 ◽  
Author(s):  
S. F. Pearson
Keyword(s):  
Hybrid Zone ◽  
Male Aggression

Female choice and male aggression in the polymorphic lizard Sceloporus minor

Ethology ◽  
2021 ◽  
Author(s):  
Aaron García‐Rosales ◽  
Barry P. Stephenson ◽  
Aurelio Ramírez‐Bautista ◽  
Javier Manjarrez ◽  
Numa P. Pavón
Keyword(s):  
Female Choice ◽  
Male Aggression ◽  
Sceloporus Minor

scholarly journals A resource-poor developmental diet reduces adult aggression in male Drosophila melanogaster

2021 ◽  
Vol 75 (7) ◽  
Author(s):  
Danielle Edmunds ◽  
Stuart Wigby ◽  
Jennifer C. Perry
Keyword(s):  
Drosophila Melanogaster ◽  
Early Life ◽  
Social Effects ◽  
Energy Budgets ◽  
Male Aggression ◽  
Aggressive Interactions ◽  
Low Resource ◽  
Resource Poor ◽  
Individual Effects ◽  
Aggressive Behaviours

AbstractAggressive behaviours occur throughout the animal kingdom and agonistic contests often govern access to resources. Nutrition experienced during development has the potential to influence aggressive behaviours in adults through effects on growth, energy budgets and an individual’s internal state. In particular, resource-poor developmental nutrition might decrease adult aggression by limiting growth and energy budgets, or alternatively might increase adult aggression by enhancing motivation to compete for resources. However, the direction of this relationship—and effects of developmental nutrition experienced by rivals—remains unknown in most species, limiting understanding of how early-life environments contribute to variation in aggression. We investigated these alternative hypotheses by assessing male-male aggression in adult fruit flies, Drosophila melanogaster, that developed on a low-, medium- or high-resource diet, manipulated via yeast content. We found that a low-resource developmental diet reduced the probability of aggressive lunges in adults, as well as threat displays against rivals that developed on a low-resource diet. These effects appeared to be independent of diet-related differences in body mass. Males performed relatively more aggression on a central food patch when facing rivals of a low-resource diet, suggesting that developmental diet affects aggressive interactions through social effects in addition to individual effects. Our finding that resource-poor developmental diets reduce male-male aggression in D. melanogaster is consistent with the idea that resource budgets mediate aggression and in a mass-independent manner. Our study improves understanding of the links between nutrition and aggression.Significance statementEarly-life nutrition can influence social behaviours in adults. Aggression is a widespread social behaviour with important consequences for fitness. Using the fruit fly, Drosophila melanogaster, we show that a poor developmental diet reduces aspects of adult aggressive behaviour in males. Furthermore, males perform more aggression near food patches when facing rivals of poor nutrition. This suggests that early-life nutrition affects aggressive interactions through social effects in addition to individual effects.

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