DIRECT AND INDIRECT FITNESS CONSEQUENCES OF FEMALE CHOICE IN A CRUSTACEAN

Evolution ◽  
2008 ◽  
Vol 62 (7) ◽  
pp. 1666-1675 ◽  
Author(s):  
Rickey D. Cothran
Keyword(s):  
Female Choice ◽  
Fitness Consequences ◽  
Indirect Fitness

scholarly journals Conflict between direct and indirect benefits of female choice in desert Drosophila

2006 ◽  
Vol 3 (1) ◽  
pp. 29-32 ◽  
Author(s):  
Elen Oneal ◽  
Tim Connallon ◽  
L Lacey Knowles
Keyword(s):  
Mate Choice ◽  
Female Choice ◽  
Desiccation Stress ◽  
Direct Benefit ◽  
Mating Preferences ◽  
Indirect Benefits ◽  
Indirect Fitness ◽  
Direct And Indirect Benefits ◽  
Opposing Effects ◽  
The Cost

Identifying the factors that contribute to the adaptive significance of mating preferences is one major goal of evolutionary research and is largely unresolved. Both direct and indirect benefits can contribute to mate choice evolution. Failure to consider the interaction between individual consequences of mate choice may obscure the opposing effects of individual costs and benefits. We investigate direct and indirect fitness effects of female choice in a desert fly ( Drosophila mojavensis ), a species where mating confers resistance to desiccation stress. Females prefer males that provide a direct benefit: greater resistance to desiccation stress. Mating preferences also appear to have indirect consequences: daughters of preferred males have lower reproductive success than daughters of unpreferred males, although additional experimentation will be needed to determine if the indirect consequences of female preferences actually arise from ‘sexually antagonistic’ variation. Nevertheless, the results are intriguing and are consistent with the hypothesis that an interaction between direct and indirect benefits maintains sexually antagonistic variation in these desert flies: increased desiccation resistance conferred by mating might offset the cost of producing low-fecundity daughters.

scholarly journals Indirect fitness consequences of mate choice in sticklebacks: offspring of brighter males grow slowly but resist parasitic infections

2001 ◽  
Vol 268 (1462) ◽  
pp. 71-76 ◽  
Author(s):  
Iain Barber ◽  
Stephen A. Arnott ◽  
Victoria A. Braithwaite ◽  
Jennifer Andrew ◽  
Felicity A. Huntingford
Keyword(s):  
Mate Choice ◽  
Parasitic Infections ◽  
Fitness Consequences ◽  
Indirect Fitness

scholarly journals The sociobiology of sex: inclusive fitness consequences of inter-sexual interactions

2012 ◽  
Vol 367 (1600) ◽  
pp. 2314-2323 ◽  
Author(s):  
Tommaso Pizzari ◽  
Andy Gardner
Keyword(s):  
Social Interactions ◽  
Sexual Conflict ◽  
Indirect Effects ◽  
Inclusive Fitness ◽  
Kin Recognition ◽  
Fitness Effects ◽  
Inclusive Fitness Theory ◽  
Fitness Consequences ◽  
Indirect Fitness ◽  
Population Viscosity

The diversity of social interactions between sexual partners has long captivated biologists, and its evolution has been interpreted largely in terms of ‘direct fitness’ pay-offs to partners and their descendants. Inter-sexual interactions also have ‘indirect effects’ by affecting the fitness of relatives, with important consequences for inclusive fitness. However, inclusive fitness arguments have received limited consideration in this context, and definitions of ‘direct’ and ‘indirect’ fitness effects in this field are often inconsistent with those of inclusive fitness theory. Here, we use a sociobiology approach based on inclusive fitness theory to distinguish between direct and indirect fitness effects. We first consider direct effects: we review how competition leads to sexual conflict, and discuss the conditions under which repression of competition fosters sexual mutualism. We then clarify indirect effects, and show that greenbeard effects, kin recognition and population viscosity can all lead to episodes of indirect selection on sexual interactions creating potential for sexual altruism and spite. We argue that the integration of direct and indirect fitness effects within a sociobiology approach enables us to consider a more diverse spectrum of evolutionary outcomes of sexual interactions, and may help resolving current debates over sexual selection and sexual conflict.

scholarly journals The fitness consequences of kin-biased dispersal in a cooperatively breeding bird

2015 ◽  
Vol 11 (7) ◽  
pp. 20150336 ◽  
Author(s):  
Lea Pollack ◽  
Dustin R. Rubenstein
Keyword(s):  
Social Rank ◽  
Group Living ◽  
Breeding Bird ◽  
Direct Benefits ◽  
Fitness Consequences ◽  
Cooperatively Breeding ◽  
Potential Benefits ◽  
Indirect Fitness ◽  
Living Species

Cooperative alliances among kin may not only lead to indirect fitness benefits for group-living species, but can also provide direct benefits through access to mates or higher social rank. However, the immigrant sex in most species loses any potential benefits of living with kin unless immigrants disperse together or recruit relatives into the group in subsequent years. To look for evidence of small subgroups of related immigrants within social groups (kin substructure), we used microsatellites to assess relatedness between immigrant females of the cooperatively breeding superb starling, Lamprotornis superbus. We determined how timing of immigration led to kin subgroup formation and if being part of one influenced female fitness. Although mean relatedness in groups was higher for males than females, 26% of immigrant females were part of a kin subgroup with a sister. These immigrant sibships formed through kin recruitment across years more often than through coalitions immigrating together in the same year. Furthermore, females were more likely to breed when part of a kin subgroup than when alone, suggesting that female siblings form alliances that may positively influence their fitness. Ultimately, kin substructure should be considered when determining the role of relatedness in the evolution of animal societies.

SPLIT-CLUTCH IVF: A TECHNIQUE TO EXAMINE INDIRECT FITNESS CONSEQUENCES OF MATE PREFERENCES IN STICKLEBACKS

Behaviour ◽  
2000 ◽  
Vol 137 (7-8) ◽  
pp. 1129-1140 ◽  
Author(s):  
Stephen Arnott ◽  
Iain Barber
Keyword(s):  
Maternal Investment ◽  
Field Studies ◽  
Mate Preferences ◽  
Good Genes ◽  
In Vitro Fertilisation ◽  
Offspring Performance ◽  
Fitness Consequences ◽  
Indirect Fitness ◽  
And Performance

AbstractAlthough laboratory mate choice experiments and field studies often reveal certain traits of male three-spined sticklebacks (as well as other model species) to be attractive to mate searching females, evidence that mating with males possessing such traits improves offspring survival and performance is scarce. In particular, there is a lack of unambiguous data linking preferred male traits with inherited genetic 'viability', which are essential for 'good genes' models of sexual selection. In this paper, we provide a protocol for performing half-sibling crosses in three-spined sticklebacks using a split-clutch in vitro fertilisation (SC-IVF) technique. This approach controls for variable maternal investment and standardises parental care — two confounding variables that frequently distort the relationship between sire trait and offspring performance — allowing the detection of offspring viability characteristics linked to specific sire traits such as sexual coloration, body size or condition.

Dealing with hot rocky environments: Critical thermal maxima and locomotor performance in Leptodactylus lithonaetes (Anura: Leptodactylidae)

2019 ◽  
pp. 155-161 ◽  
Author(s):  
Ivan Beltran
Keyword(s):  
Environmental Temperature ◽  
Extreme Temperature ◽  
Effect Of Temperature ◽  
Maximum Speed ◽  
Locomotor Performance ◽  
Extreme Temperatures ◽  
Physiological Limits ◽  
Fitness Consequences ◽  
Thermal Maximum ◽  
Environmental Temperatures

Environmental temperature has fitness consequences on ectotherm development, ecology and behaviour. Amphibians are especially vulnerable because thermoregulation often trades with appropriate water balance. Although substantial research has evaluated the effect of temperature in amphibian locomotion and physiological limits, there is little information about amphibians living under extreme temperature conditions. Leptodactylus lithonaetes is a frog allegedly specialised to forage and breed on dark granitic outcrops and associated puddles, which reach environmental temperatures well above 40 ˚C. Adults can select thermally favourable microhabitats during the day while tadpoles are constrained to rock puddles and associated temperature fluctuations; we thus established microhabitat temperatures and tested whether the critical thermal maximum (CTmax) of L. lithonaetes is higher in tadpoles compared to adults. In addition, we evaluated the effect of water temperature on locomotor performance of tadpoles. Contrary to our expectations, puddle temperatures were comparable and even lower than those temperatures measured in the microhabitats used by adults in the daytime. Nonetheless, the CTmax was 42.3 ˚C for tadpoles and 39.7 ˚C for adults. Regarding locomotor performance, maximum speed and maximum distance travelled by tadpoles peaked around 34 ˚C, approximately 1 ˚C below the maximum puddle temperatures registered in the puddles. In conclusion, L. lithonaetes tadpoles have a higher CTmax compared to adults, suggesting a longer exposure to extreme temperatures that lead to maintain their physiological performance at high temperatures. We suggest that these conditions are adaptations to face the strong selection forces driven by this granitic habitat.

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