Multi-male mating and female choice increase offspring growth in the spiderNeriene litigiosa(Linyphiidae)

1998 ◽  
Vol 55 (2) ◽  
pp. 387-403 ◽  
Author(s):  
PAUL J WATSON
Keyword(s):  
Female Choice ◽  
Male Mating ◽  
Offspring Growth

Female Choice Leads to a Switch in Oval Squid Male Mating Tactics

2017 ◽  
Vol 233 (3) ◽  
pp. 219-226 ◽  
Author(s):  
Chun-Yen Lin ◽  
Chuan-Chin Chiao
Keyword(s):  
Female Choice ◽  
Male Mating ◽  
Mating Tactics

Influence of advertisement calls on reproductive success in the male midwife toad Alytes obstetricans

Behaviour ◽  
2003 ◽  
Vol 140 (7) ◽  
pp. 885-898 ◽  
Author(s):  
Dominique Le Jacques ◽  
Thierry Lodé
Keyword(s):  
Reproductive Success ◽  
Fundamental Frequency ◽  
Female Choice ◽  
Hatching Success ◽  
Advertisement Call ◽  
Male Mating ◽  
Evolutionary Trend ◽  
Male Size ◽  
Midwife Toad ◽  
Alytes Obstetricans

AbstractConsidering the advertisement call in anuran as a sexually selected trait, we investigated the effects of male call parameters on reproductive success in midwife toad Alytes obstetricans. The pattern of advertisement call was studied in 81 males. The mean fundamental frequency varied among males. Fundamental frequency, call duration and male size correlated with the male mating success. From the stepwise regression analysis, the low call frequency was found to influence significantly the number of carried eggs and the hatching success. The fact that a single male may fertilise the eggs of several females and a single female may mate with several males constitutes an original sexual system. Large males obtained more matings and showed a higher hatching success. Female choice for dominant frequency may be regarded as a related-fitness trait being correlated with male size. Anyway, the male size and the female choice for low calls result in a same evolutionary trend favouring a best fitness.

scholarly journals GENETIC VARIATION AND GENETIC LOAD DUE TO THE MALE REPRODUCTIVE COMPONENT OF FITNESS IN DROSOPHILA

Genetics ◽  
1981 ◽  
Vol 97 (3-4) ◽  
pp. 719-730
Author(s):  
John G Brittnacher
Keyword(s):  
Drosophila Melanogaster ◽  
Genetic Variation ◽  
Female Choice ◽  
Genetic Load ◽  
Competition Experiment ◽  
Male Mating ◽  
Mating Competition ◽  
Mating Propensity ◽  
The Mean ◽  
Male Mating Competition

ABSTRACT The genetic variation and genetic load due to virility, the male reproductive component of fitness, was measured in Drosophila melanogaster and D. pseudoobscura using males homozygous and heterozygous for the second chromosome of each species. Virility was determined in a female-choice, male mating competition experiment where both mating propensity and fertility were taken into account.——The mean virility of the homozygous D. melanogaster males relative to the heterozygous males was 0.50; the relative mean virility of the quasinormal homozygotes was 0.56. The mean virility of the homozygous D. pseudoobscura males relative to the heterozygous males was 0.70; the relative mean virility of the nonsterile homozygotes was 0.72, and of the quasinormal homozygotes, 0.68.——Depending on the species and chromosome sampled, fertile homozygous males had a mean virility 15 to 50% lower than the mean viability of individuals homozygous for a chromosome with quasinormal viability. The genetic load due to virility was also greater than that due to the female reproductive component. This higher level of hidden genetic variation (or genetic load) indicates that the results of PROUT(1971a, b) and BUNDGAARD and CHRISTIANSEN(1972), where the virility component of fitness dominated the dynamics of an artificial polymorphism, may be more general and that virility may dominate the dynamics of natural polymorphisms as well.

Genetic Divergence, Female Choice and Male Mating Success in Trinidadian Guppies

Behaviour ◽  
1996 ◽  
Vol 133 (7-8) ◽  
pp. 503-517 ◽  
Author(s):  
G.R. Carvalho ◽  
P.W. Shaw ◽  
B.H. Seghers ◽  
C.G.M. Paxton ◽  
A.E. Magurran
Keyword(s):  
Female Choice ◽  
Mating Success ◽  
Genetic Divergence ◽  
Male Mating ◽  
Male Mating Success

Correlates of male mating success and female choice in a lek-breeding antelope

1992 ◽  
Vol 3 (2) ◽  
pp. 112-123 ◽  
Author(s):  
Andrew Balmford ◽  
Steve Albon ◽  
Sarah Blakeman
Keyword(s):  
Female Choice ◽  
Mating Success ◽  
Male Mating ◽  
Male Mating Success

Imperfect female choice and male mating skew on leks of different sizes

1999 ◽  
Vol 45 (3-4) ◽  
pp. 277-281 ◽  
Author(s):  
Rufus A. Johnstone ◽  
David J. D. Earn
Keyword(s):  
Female Choice ◽  
Male Mating
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