Polyandry increases reproductive performance but does not decrease survival in female Brontispa longissima
| Autor: | Wataru Sugeno, Shozo Nakamura, Kei Kawazu, A. Mochizuki |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Male
0106 biological sciences 0301 basic medicine media_common.quotation_subject Zoology Fertility Biology 010603 evolutionary biology 01 natural sciences Sexual Behavior Animal 03 medical and health sciences Brontispa longissima Animals Mating media_common Ecology Hatching Reproduction Longevity Genetic Variation General Medicine Fecundity biology.organism_classification Coleoptera 030104 developmental biology Insect Science Female Genetic Fitness Agronomy and Crop Science |
| Zdroj: | Bulletin of Entomological Research. 107:165-173 |
| ISSN: | 1475-2670 0007-4853 |
| Popis: | The costs and benefits of polyandry are still not well understood. We studied the effects of multiple mating on the reproductive performance of female Brontispa longissima (Coleoptera: Chrysomelidae), one of the most serious pests of the coconut palm, by using three experimental treatments: (1) singly-mated females (single treatment); (2) females that mated 10 times with the same male (repetition treatment); and (3) females that mated once with each of 10 different males (polyandry treatment). Both multiple mating treatments resulted in significantly greater total egg production and the proportion of eggs that successfully hatched (hatching success) than with the single mating treatment. Furthermore, the polyandry treatment resulted in greater total egg production and hatching success than with the repetition treatment. Thus, mate diversity may affect the direct and indirect benefits of multiple mating. Female longevity, the length of the preoviposition period, the length of the period from emergence to termination of oviposition, and the length of the ovipositing period did not differ among treatments. The pronounced fecundity and fertility benefits that females gain from multiple mating, coupled with a lack of longevity costs, apparently explain the extreme polyandry in B. longissima. |
| Databáze: | OpenAIRE |
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