scholarly journals Effects of Sex Ratio on Egg Extrusion Frequency and Mating Behavior of the Spiny King Crab Paralithodes Brevipes (Decapoda: Lithodidae)

2000 ◽  
Vol 20 (3) ◽  
pp. 479-482 ◽  
Author(s):  
Satoshi Wada ◽  
Seiji Goshima ◽  
Masakazu Ashidate ◽  
Kenji Yoshino ◽  
Taku Sato
Keyword(s):  
Sex Ratio ◽  
Mating Behavior ◽  
King Crab

EFFECTS OF SEX RATIO ON EGG EXTRUSION FREQUENCY AND MATING BEHAVIOR OF THE SPINY KING CRAB PARALITHODES BREVIPES (DECAPODA: LITHODIDAE)

2000 ◽  
Vol 20 (3) ◽  
pp. 479-482 ◽  
Author(s):  
Satoshi Wada ◽  
Masakazu Ashidate ◽  
Kenji Yoshino ◽  
Taku Sato ◽  
Seiji Goshima
Keyword(s):  
Sex Ratio ◽  
Mating Behavior ◽  
King Crab

Fitting data to theory: The contribution of a comparative perspective

2005 ◽  
Vol 28 (2) ◽  
pp. 294-295 ◽  
Author(s):  
Steve Stewart-Williams
Keyword(s):  
Sex Differences ◽  
Sex Ratio ◽  
Mating Behavior ◽  
Cross Cultural ◽  
Comparative Perspective ◽  
Evolutionary Explanation ◽  
Contextual Variables

In this commentary, I consider Schmitt's cross-cultural investigation of sociosexuality from a comparative perspective. I argue that such a perspective lends support to an evolutionary explanation of a number of Schmitt's findings, including universal sex differences in sociosexuality and the sensitivity of mating behavior to contextual variables such as sex ratio.

scholarly journals Differences in Long-Chained Cuticular Hydrocarbons between Males and Gynes in Cataglyphis Desert Ants

2019 ◽  
Author(s):  
Shani Inbar ◽  
Eyal Privman
Keyword(s):  
Sexual Selection ◽  
Mate Choice ◽  
Sex Ratio ◽  
Mating Behavior ◽  
Cuticular Hydrocarbons ◽  
Social Insects ◽  
Sex Pheromones ◽  
Polar Fraction ◽  
Virgin Queens ◽  
First Time

AbstractCuticualar hydrocarbons play an important role in chemical communication in social insects, serving, among other things, as nestmate, gender, dominance and fertility recognition cues. In ants, however, very little is known about the precopulatory signals cuticular hydrocarbons carry. These signals may serve as affecting sex pheromones and aphrodisiacs or as reliable signals for idiosyncratic traits, which indirectly affect sexual selection. In this study, we examined, for the first time, in the Cataglyphis genus, sex-specific variability in cuticular hydrocarbons. We focused on a species that exhibits split sex-ratio and found significant quantitative differences between virgin queens and their potential mates. In an analyses of both absolute amounts and relative amounts, we found different compounds to be significantly displayed on gynes and drones, suggesting absolute and relative amounts may carry different signals influencing mating behavior and mate choice. We discuss the possible signals advertised by the non-polar fraction of these hydrocarbon profiles.

scholarly journals Mating Behavior, Population Growth, and the Operational Sex Ratio: A Periodic Two‐Sex Model Approach

2010 ◽  
Vol 175 (6) ◽  
pp. 739-752 ◽  
Author(s):  
Stéphanie Jenouvrier ◽  
Hal Caswell ◽  
Christophe Barbraud ◽  
Henri Weimerskirch
Keyword(s):  
Sex Ratio ◽  
Population Growth ◽  
Mating Behavior ◽  
Operational Sex Ratio ◽  
Model Approach

scholarly journals How Many Females Are There? Cheating and Female Dispersion Can Explain Mating Behavior Evolution

2017 ◽  
Author(s):  
B. V. Gomes ◽  
D. M. Guimarães ◽  
D. Szczupak ◽  
K. Neves
Keyword(s):  
Sex Ratio ◽  
Mating System ◽  
Mating Behavior ◽  
Mammalian Species ◽  
Operational Sex Ratio ◽  
Social Monogamy ◽  
Single Factor ◽  
Agent Based ◽  
Computational Environment ◽  
Socially Monogamous

AbstractOnly around 3% of all mammalian species are socially monogamous and the conditions that favor the evolution of this mating system in mammals are not well understood. With several approaches, studies have proposed different hypotheses relating female dispersion and infanticide as drivers for the evolution of social monogamy. Here, we used an agent-based model, that allowed us to examine how different mating behaviors affect populations in a controlled computational environment. We found that the evolution of social monogamy does not rely on a single factor. Rather, our experimental results support an interplay of different factors in the evolution of social monogamy – female dispersion and availability and breeding season duration – and suggests that polygamy will only evolve in populations with a female-biased operational sex ratio or one where cheating is common. These results can explain why social monogamy is so uncommon in mammals and points to new lines for ethological investigation of mammalian behavior.

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