Abstract
Costs of reproduction include costs of producing eggs and of mating itself. In the present study, we made an experimental investigation of costs of reproduction in the Mediterranean fruit fly (medfly, Ceratitis capitata). We demonstrated that virgins live longer than non-virgin females. However, in strong contrast to most findings within the Diptera, non-virginity had no detectable effect on egg production. Therefore the increased longevity of the virgin females cannot be attributed to an increase in egg production in non-virgin females, and instead indicates a cost of mating. A comparison of the life spans of normal females and those sterilized by low doses of X-irradiation, revealed an additional cost of egg production. There were no significant differences in remating levels between females that did and did not lay eggs, showing that the cost of producing eggs is independent of mating frequency. Medfly females therefore suffer a decrease in survival as a result of egg production and of mating, and these costs are independent of one another. To put our results into context, we reviewed the existing literature on the effects of mating on longevity, egg production and sexual receptivity for 64 species of Diptera, and examined the pattern of mating effects that emerged.
| Original language | English |
|---|---|
| Pages (from-to) | 1879-1894 |
| Number of pages | 16 |
| Journal | Proceedings of the Royal Society B: Biological Sciences |
| Volume | 265 |
| Issue number | 1408 |
| DOIs | |
| Publication status | Published - Oct 7 1998 |
| Externally published | Yes |
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Keywords
- Ceratitis capitata
- Death rates
- Egg production
- Mating
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Agricultural and Biological Sciences (miscellaneous)
Cite this
Interactions of mating, egg production and death rates in females of the Mediterranean fruit fly, Ceratitis capitata. / Chapman, T.; Miyatake, Takahisa; Smith, H. K.; Partridge, L.
In: Proceedings of the Royal Society B: Biological Sciences, Vol. 265, No. 1408, 07.10.1998, p. 1879-1894.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Interactions of mating, egg production and death rates in females of the Mediterranean fruit fly, Ceratitis capitata
AU - Chapman, T.
AU - Miyatake, Takahisa
AU - Smith, H. K.
AU - Partridge, L.
PY - 1998/10/7
Y1 - 1998/10/7
N2 - Costs of reproduction include costs of producing eggs and of mating itself. In the present study, we made an experimental investigation of costs of reproduction in the Mediterranean fruit fly (medfly, Ceratitis capitata). We demonstrated that virgins live longer than non-virgin females. However, in strong contrast to most findings within the Diptera, non-virginity had no detectable effect on egg production. Therefore the increased longevity of the virgin females cannot be attributed to an increase in egg production in non-virgin females, and instead indicates a cost of mating. A comparison of the life spans of normal females and those sterilized by low doses of X-irradiation, revealed an additional cost of egg production. There were no significant differences in remating levels between females that did and did not lay eggs, showing that the cost of producing eggs is independent of mating frequency. Medfly females therefore suffer a decrease in survival as a result of egg production and of mating, and these costs are independent of one another. To put our results into context, we reviewed the existing literature on the effects of mating on longevity, egg production and sexual receptivity for 64 species of Diptera, and examined the pattern of mating effects that emerged.
AB - Costs of reproduction include costs of producing eggs and of mating itself. In the present study, we made an experimental investigation of costs of reproduction in the Mediterranean fruit fly (medfly, Ceratitis capitata). We demonstrated that virgins live longer than non-virgin females. However, in strong contrast to most findings within the Diptera, non-virginity had no detectable effect on egg production. Therefore the increased longevity of the virgin females cannot be attributed to an increase in egg production in non-virgin females, and instead indicates a cost of mating. A comparison of the life spans of normal females and those sterilized by low doses of X-irradiation, revealed an additional cost of egg production. There were no significant differences in remating levels between females that did and did not lay eggs, showing that the cost of producing eggs is independent of mating frequency. Medfly females therefore suffer a decrease in survival as a result of egg production and of mating, and these costs are independent of one another. To put our results into context, we reviewed the existing literature on the effects of mating on longevity, egg production and sexual receptivity for 64 species of Diptera, and examined the pattern of mating effects that emerged.
KW - Ceratitis capitata
KW - Death rates
KW - Egg production
KW - Mating
UR - http://www.scopus.com/inward/record.url?scp=0032494464&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032494464&partnerID=8YFLogxK
U2 - 10.1098/rspb.1998.0516
DO - 10.1098/rspb.1998.0516
M3 - Article
C2 - 9802244
AN - SCOPUS:0032494464
VL - 265
SP - 1879
EP - 1894
JO - Philosophical Transactions of the Royal Society B: Biological Sciences
JF - Philosophical Transactions of the Royal Society B: Biological Sciences
SN - 0962-8436
IS - 1408
ER -