Open-cell parasitism shapes maternal investment patterns in the Red Mason bee Osmia rufa

@article{Seidelmann2006OpencellPS,
  title={Open-cell parasitism shapes maternal investment patterns in the Red Mason bee Osmia rufa},
  author={Karsten Seidelmann},
  journal={Behavioral Ecology},
  year={2006},
  volume={17},
  pages={839-848}
}
Brood cell parasitism inflicts high fitness costs on solitary, nest-constructing bees. Many of these parasites enter open cells during its provisioning, when the mother bee is absent. Therefore, females can reduce the risk of open-cell parasitism by limiting the time they are away from the nest. However, provisioning efficiency (provisioning time per unit of progeny body mass) decreases due to aging. To limit the increasing risk of open-cell parasitism as the nesting season progresses, female… Expand
Conditional sex allocation in the Red Mason bee, Osmia rufa
TLDR
The resulting prediction of a conditional sex allocation in solitary Aculeata was tested in the Red Mason bee, Osmia rufa (Osmia bicornis), a stem or hole-nesting, polylectic, univoltine megachilid bee, and found that small females dealt with their handicap of a low provisioning performance by shifting the sex ratio toward sons (the smaller sex) and by reducing the body size of daughters. Expand
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TLDR
The nesting behavior and the reproductive potential of a single O. rufa female are elucidated and the sex ratio (proportion of male and female offspring) may change during the nesting period. Expand
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Resources (energy expenses) that can be devoted to progeny are always limited. Optimal resource allocation theory predicts that parents should allocate resources to their offspring in portions thatExpand
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TLDR
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TLDR
The body size of solitary bees is positively correlated with their fitness and has influence on the provisioning rate, provision mass, fecundity, offspring size and sex ratio, which is strongly dependent on conditions prevailing during their larval period. Expand
The impact of nest tube dimensions on reproduction parameters in a cavity nesting solitary bee, Osmia bicornis (Hymenoptera: Megachilidae)
TLDR
Although female bees used a wide spectrum of nest dimensions, artificial nest tubes of 8–10 mm internal diameter and a length of at least 150 mm were optimal, and increasing tube diameter positively affected both progeny sex ratio and body size. Expand
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References

SHOWING 1-10 OF 73 REFERENCES
Nest provisioning and a possible cost of reproduction in the megachilid bee Osmia rufa studied by a new observation method
TLDR
The results show that female O. rufa lost mass towards the end of the flight season, and the high expenditure for reproduction were probably the major cause of the weight loss. Expand
PARENTAL INVESTMENT PER OFFSPRING BY A SPECIALIST BEE: DOES IT CHANGE SEASONALLY?
  • K. Strickler
  • Biology, Medicine
  • Evolution; international journal of organic evolution
  • 1982
TLDR
The data reported here were collected as part of a study comparing foraging efficiencies of H. anthocopoides and four generalist bee species (Strickler, 1979), so data are not as complete as those of Torchio and Tepedino and adequate data are available to test the predictions that average investment per offspring and foraging rate decrease over the season. Expand
Female size affects provisioning and sex allocation in a digger wasp
TLDR
An estimate of the sex allocation of the food bees, based on the timing pattern of successful hunting trips, suggested that female size is positively correlated with the proportion of daughters produced, however, this effect explains only a small part of the overall variation in investment ratio. Expand
Activity patterns of females of the solitary bee Anthophora plumipes in relation to temperature, nectar supplies and body size
TLDR
Body size predicts reproductive success at low ambient temperatures and the body size of individuals emerging in the following season will depend on interactions between climate and body size, in addition to any heritable component. Expand
Provisioning behavior and the estimation of investment ratios in a solitary bee, Calliopsis (Hypomacrotera) persimilis (Cockerell) (Hymenoptera: Andrenidae)
  • B. Danforth
  • Biology
  • Behavioral Ecology and Sociobiology
  • 2004
TLDR
Calliopsis (Hypomacrotera) persimilis is a solitary, ground-nesting bee whose natural history makes it particularly convenient for studies of investment patterns and foraging behavior, and results support the use of adult dry body weight ratios in the estimation of cost ratios. Expand
The Race for Females: The Mating System of the Red Mason Bee, Osmia rufa (L.) (Hymenoptera: Megachilidae)
TLDR
In nest-constructing Aculeata such as the red mason bee, Osmia rufa, females perform intensive brood care, whereas males do not invest in their offspring but instead compete for access to mates. Expand
Sex allocation in the solitary bee Osmia cornuta: do females behave in agreement with Fisher's theory?
TLDR
The results strongly support Fisher's theory of sex allocation, which predicts that, in a panmictic population, parental investment will be equally distributed between male and female progeny. Expand
The function of the vestibulum in nests of a solitary stem-nesting bee, Osmia rufa (L.)
TLDR
Nests of the stem- or hole-nesting megachilid bee, Osmia rufa, were analysed to help analyse the function of the outermost empty chamber of the nest, the vestibulum, to avoid misinvestment due to the high risk of par- asitism. Expand
Brood-provisioning strategies in Dawson's burrowing bee, Amegilla dawsoni (Hymenoptera: Anthophorini)
TLDR
It appears that the abundance of minor males of Dawson's burrowing bee is the result of a conditional provisioning strategy of nesting females, which may be superimposed on a fixed tendency to produce large offspring early in the season and small ones later. Expand
Biology of Calliopsis pugionis (Hymenoptera: Andrenidae): Nesting, Foraging, and Investment Sex Ratio
TLDR
Quantitative predictions of effect on sex ratio of differential parasitism of males and females by a cleptoparasitic bee, Holcopasites ruthae Cooper, are derived. Expand
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