Do spermathecal morphology and inter-mating interval influence paternity in the polyandrous beetle Tribolium castaneum?
نویسندگان
چکیده
1 Institute of environmental Sciences, University of Zurich, CH-8057 Zürich, Switzerland; 3 Department of Statistics and Computer Science, Gembloux Agricultural University, B-5030 Gembloux, Belgium; 4 Institute of Zoology, University of Zurich, Winterthurerstr. 190, CH-8057 Zürich, Switzerland; 5 Department of pure and applied Zoology, Gembloux Agricultural University, B-5030 Gembloux and Department of Ecology, Lund University, S-SE-223 62 Lund, Sweden)
منابع مشابه
Female influence over offspring paternity in the red flour beetle Tribolium castaneum.
In animals having internal fertilization, both sexes can potentially influence the post-copulatory processes of sperm transfer, sperm storage and sperm use for fertilization. In this experiment, we investigated whether Tribolium castaneum females can influence male paternity success following consecutive matings with two different males. We compared second male paternity success (P2) between fe...
متن کاملFemale polyandry affects their sons' reproductive success in the red flour beetle Tribolium castaneum.
A potential benefit to females mating with multiple males is the increased probability that their sons will inherit traits enhancing their pre- or post-mating ability to obtain fertilizations. We allowed red flour beetle (Tribolium castaneum) females to mate on three consecutive days either repeatedly to the same male or to three different males. This procedure was carried out in 20 replicate l...
متن کاملPolyandry and female control: the red flour beetle Tribolium castaneum as a case study.
Females of many animal species are polyandrous, and there is evidence that they can control pre- and post-mating events. There has been a growing interest in consequences of polyandry for male and female reproductive success and offspring fitness, and its evolutionary significance. In several taxa, females exhibit mate choice both before and after mating and can influence the paternity of their...
متن کاملCryptic female choice during spermatophore transfer in Tribolium castaneum (Coleoptera: Tenebrionidae).
Sexual selection in both males and females promotes traits and behaviors that allow control over paternity when female mates with multiple males. Nonetheless, mechanisms of cryptic female choice have been consistently overlooked, due to traditional focus on sperm competition as well as difficulty in distinguishing male vs. female influence over processes occurring during and after mating. The f...
متن کاملCryptic female choice of mates in flour beetles (Coleoptera: Tenebrionidae)
Sexual selection drives the evolution of diverse traits that provide an advantage in reproduction. In polyandrous species the traditional premating processes of male-male competition and female choice have as counterparts sperm competition and cryptic female choice (CFC) occurring during and after mating; these processes determine paternity shares of multiple males mated to the same female. I c...
متن کامل