Polyandry as a mediator of sexual selection before and after mating
نویسندگان
چکیده
منابع مشابه
Polyandry as a mediator of sexual selection before and after mating
The Darwin-Bateman paradigm recognizes competition among males for access to multiple mates as the main driver of sexual selection. Increasingly, however, females are also being found to benefit from multiple mating so that polyandry can generate competition among females for access to multiple males, and impose sexual selection on female traits that influence their mating success. Polyandry ca...
متن کاملBet-hedging via polyandry: a comment on 'Mating portfolios: bet-hedging, sexual selection and female multiple mating'.
Garcia-Gonzalez et al. [1] conducted an original and elegant experiment examining whether fertilization of a female’s eggs by multiple males (polyandry) can provide fitness benefits via ‘bet-hedging’ (i.e. due to decreased variance in offspring fitness). The authors measured these benefits in both stable and variable environments, and also quantified the joint fitness consequences of bet-hedgin...
متن کاملSexual Selection: Selfish Genetic Element Encourages Polyandry
Selfish genetic elements are ubiquitous and may impact drastically on eukaryote reproduction and evolution. A recent experimental evolution study shows that such elements could also provide an explanation for polyandry.
متن کاملSexual Selection: Copycat Mating
Female zebra finches may be influenced by the choices of other females when selecting mates, challenging the view that mate-choice copying should not occur in species with biparental care. Choosing a mate is not a simple business. A female needs a male in order to reproduce, but how does she know which one to pick? How can she find a good mate without wasting too much time and effort? One answe...
متن کاملSexual selection and mating systems.
Sexual selection is among the most powerful of all evolutionary forces. It occurs when individuals within one sex secure mates and produce offspring at the expense of other individuals within the same sex. Darwin was first to recognize the power of sexual selection to change male and female phenotypes, and, in noting that sexual selection is nonubiquitous, Darwin was also first to recognize the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Philosophical Transactions of the Royal Society B: Biological Sciences
سال: 2013
ISSN: 0962-8436,1471-2970
DOI: 10.1098/rstb.2012.0042