作者
Kensuke Okada, C Ruth Archer, Masako Katsuki, Yû Suzaki, Manmohan D Sharma, Clarissa M House, David J Hosken
发表日期
2015/8/1
期刊
Animal behaviour
卷号
106
页码范围
11-16
出版商
Academic Press
简介
Highlights
- We investigate the female fitness effects of multiple mating.
- Mating was not costly for females but mating more increased female fertility.
- Mating with more than one male increased the fitness of a female's offspring.
Although polyandry is common, it is often unclear why females mate with multiple males, because although polyandry may provide females with direct or indirect fitness benefits, it can also be costly. Our understanding of polyandry is also restricted by the relative paucity of studies that disentangle the fitness effects of mating more than once with a single male and mating with multiple males. Here we investigated potential benefits and costs of polyandry in the horned beetle, Gnatocerus cornutus, while controlling for the number of matings. We found that female life span was independent of mating frequency, indicating that mating itself is not very costly. However, females that mated more than once …
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K Okada, CR Archer, M Katsuki, Y Suzaki, MD Sharma… - Animal behaviour, 2015