scholarly journals Consequences of population structure for sex allocation and sexual conflict

2021 ◽  
Author(s):  
Leonor Rodrigues ◽  
Mario Torralba Sáez ◽  
João Alpedrinha ◽  
Sophie Lefèvre ◽  
Muriel Brengues ◽  
...  
Keyword(s):  
Population Structure ◽  
Sexual Conflict ◽  
Sex Allocation

scholarly journals Consequences of population structure for sex allocation and sexual conflict

2020 ◽  
Author(s):  
Leonor R. Rodrigues ◽  
Mario Torralba Sáez ◽  
João Alpedrinha ◽  
Sophie Lefèvre ◽  
Muriel Brengues ◽  
...  
Keyword(s):  
Population Structure ◽  
Sexual Conflict ◽  
Sex Allocation ◽  
Spider Mite ◽  
No Reduction ◽  
Female Fitness ◽  
Random Dispersal ◽  
Random Pairing ◽  
Offspring Sex ◽  
Theoretical Predictions

AbstractBoth sex allocation and sexual conflict can be modulated by spatial structure. However, how the interplay between the type of dispersal and the scale of competition simultaneously affects these traits in sub-divided populations is rarely considered.We investigated sex allocation and sexual conflict evolution in meta-populations of the spider mite Tetranychus urticae evolving under budding (pairing females from the same patch) or random (pairing females from different patches) dispersal and either local (fixed sampling from each subpopulation) versus global (sampling as a function of subpopulation productivity) competition.Females evolving under budding dispersal produced less female-biased offspring sex ratios than those from the random dispersal selection regimes, contradicting theoretical predictions. In turn, the scale of competition did not have a strong effect on sex allocation. Males evolved under budding dispersal induced less female harm than those exposed to random dispersal, but there was no reduction in female fitness following exposure to multiple mates from either selection regime.This work highlights that population structure can impact the evolution of sex allocation and sexual conflict. We also discuss how selection on either trait may reciprocally affect the evolution of the other, for example via effects on fecundity.

scholarly journals Sex allocation and population structure in apicomplexan (protozoa) parasites

2000 ◽  
Vol 267 (1440) ◽  
pp. 257-263 ◽  
Author(s):  
Stuart A. West ◽  
Todd G. Smith ◽  
Andrew F. Read
Keyword(s):  
Population Structure ◽  
Sex Allocation

scholarly journals Sexual conflict and sex allocation

2009 ◽  
Vol 5 (5) ◽  
pp. 660-662 ◽  
Author(s):  
Tracey Chapman
Keyword(s):  
Sexual Conflict ◽  
Sex Allocation

Intralocus sexual conflict, adaptive sex allocation, and the heritability of fitness

2015 ◽  
Vol 28 (11) ◽  
pp. 1975-1985 ◽  
Author(s):  
R. Calsbeek ◽  
M. C. Duryea ◽  
D. Goedert ◽  
P. Bergeron ◽  
R. M. Cox
Keyword(s):  
Sexual Conflict ◽  
Sex Allocation ◽  
Intralocus Sexual Conflict

scholarly journals Population structure influences sexual conflict in wild populations of water striders

Behaviour ◽  
2010 ◽  
Vol 147 (12) ◽  
pp. 1615-1631 ◽  
Author(s):  
David Sloan Wilson ◽  
John Pepper ◽  
Michael Dlugos ◽  
Omar Tonsi Eldakar ◽  
Galen Holt
Keyword(s):  
Population Structure ◽  
Sexual Conflict ◽  
Wild Populations ◽  
Water Striders

scholarly journals Sex allocation and sexual conflict in simultaneously hermaphroditic animals

2009 ◽  
Vol 5 (5) ◽  
pp. 705-708 ◽  
Author(s):  
Lukas Schärer ◽  
Tim Janicke
Keyword(s):  
Sexual Selection ◽  
Theoretical Prediction ◽  
Experimental Test ◽  
Sexual Conflict ◽  
Sex Allocation ◽  
Theoretical Work ◽  
Theoretical Research ◽  
Sperm Donor ◽  
Simultaneous Hermaphrodites

Links between sex allocation (SA) and sexual conflict in simultaneous hermaphrodites have been evident since Charnov's landmark paper published 30 years ago. We discuss two links, namely the potential for sexual conflict over SA between sperm donor and recipient, and the importance of post-copulatory sexual selection and the resulting sexual conflict for the evolution of SA. We cover the little empirical and theoretical work exploring these links, and present an experimental test of one theoretical prediction. The link between SA and sexual conflict is an interesting field for future empirical and theoretical research.

scholarly journals How does breeding system variation modulate sexual antagonism?

2009 ◽  
Vol 5 (5) ◽  
pp. 717-720 ◽  
Author(s):  
Stéphanie Bedhomme ◽  
Giorgina Bernasconi ◽  
Joris M. Koene ◽  
Åsa Lankinen ◽  
H. S. Arathi ◽  
...  
Keyword(s):  
Sexual Reproduction ◽  
Sexual Conflict ◽  
Breeding System ◽  
Sex Allocation ◽  
Breeding Systems ◽  
Sexual Antagonism ◽  
Sexual Conflicts ◽  
Empirical Tests

The study of sexually antagonistic (SA) traits remains largely limited to dioecious (separate sex), mobile animals. However, the occurrence of sexual conflict is restricted neither by breeding system (the mode of sexual reproduction, e.g. dioecy or hermaphroditism) nor by sessility. Here, we synthesize how variation in breeding system can affect the evolution and expression of intra- and inter-locus sexual conflicts in plants and animals. We predict that, in hermaphrodites, SA traits will (i) display lower levels of polymorphism; (ii) respond more quickly to selection; and (iii) involve unique forms of interlocus conflict over sex allocation, mating roles and selfing rates. Explicit modelling and empirical tests in a broader range of breeding systems are necessary to obtain a general understanding of the evolution of SA traits.

scholarly journals Sexual conflict in action: An antagonistic relationship between maternal and paternal sex allocation in the tammar wallaby, Notamacropus eugenii

2019 ◽  
Vol 9 (8) ◽  
pp. 4340-4348
Author(s):  
Amy M. Edwards ◽  
Elissa Z. Cameron ◽  
Janine E. Deakin ◽  
Tariq Ezaz ◽  
Jorge C. Pereira ◽  
...  
Keyword(s):  
Sexual Conflict ◽  
Sex Allocation ◽  
Tammar Wallaby

Population Structure Mediates Sexual Conflict in Water Striders

Science ◽  
2009 ◽  
Vol 326 (5954) ◽  
pp. 816-816 ◽  
Author(s):  
O. T. Eldakar ◽  
M. J. Dlugos ◽  
J. W. Pepper ◽  
D. S. Wilson
Keyword(s):  
Population Structure ◽  
Sexual Conflict ◽  
Water Striders
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