The short-term and long-term effects of parental age in the bean weevil (Acanthoscelides obtectus)

Tucić, Nikola; Šešlija, Darka; Vesna, Stanković

doi:10.1023/b:evec.0000021090.51851.bd

Cited by 20 publications

(8 citation statements)

References 24 publications

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“…Fast development is advantageous in nonseasonal populations with fluctuating population dynamics (Sibly & Calow, ; Nylin & Gotthard, ). Previous findings regarding the consequences of parental age for development and adult size are mixed, with all possible options being considered (Dixon et al ., ; Fox, ; Nikola et al ., ; Zehnder et al ., ; Singh & Omkar, ). We did not control for population density during growth, although we consider this to be of minor importance.…”

Section: Discussionmentioning

confidence: 98%

“…However, there is disagreement in the literature as to exactly how parental age affects the offspring. Its negative effect on offspring longevity is common (Nikola, Darka & Vena, ; Zehnder et al ., ) but not universal (even when comparing other flour beetles such as Tribolium confusum or Tenebrio molitor ; Howe, ; Soliman, ). Some studies have reported no effect of parental age on offspring longevity (Fox, Bush & Wallin, ), whereas others have detected a strain‐ or population‐specific effect (Priest et al ., ; Yilmaz et al ., ).…”

Section: Discussionmentioning

confidence: 99%

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The consequences of parental age for development, body mass and resistance to stress in the red flour beetle

Halle

Nowizki

Scharf

2015

Biol J Linn Soc Lond

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The performance of most animals deteriorates with age. Motivated by the inconsistency in the literature regarding the effect of parental age on offspring traits and performance, we studied how parental age affects offspring development time, body mass, and starvation and cold tolerance in the red flour beetle (Tribolium castaneum). Offspring of old parents pupated later and at a higher body mass, and there was a general positive correlation between body mass and starvation tolerance. Despite their higher body mass, offspring of old parents tolerated starvation less well than those of young parents, emphasizing the impaired performance of the former. However, parental age did not affect offspring thermal tolerance and offspring of old parents were not more sensitive to cold shock than those of young parents. We also examined how ageing affects body mass and cold tolerance in the parental generations. By contrast to the effect of ontogeny on thermal tolerance, which is better known, change in thermal tolerance with age is seldom studied and can take different shapes. Old beetles were more sensitive to cold shock than younger beetles. Similar to cold tolerance, body mass decreased with age. In summary, older beetles reflect a worse physiological condition than younger ones. Ageing leads to impaired cold tolerance, lower body mass, lower number of offspring reaching adulthood, and deteriorated performance of the offspring, expressed as a lower starvation tolerance and a longer development time of the offspring.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

The consequences of parental age for development, body mass and resistance to stress in the red flour beetle

Halle

Nowizki

Scharf

2015

Biol J Linn Soc Lond

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“…While males and females were kept together and mated from day 1 in both selection regimes, fitness was thus accrued during days 1-2 in the E lines and from day 10 until death in the L lines. Previous work based on these lines have shown that the L lines have evolved decreased rates of senescence, reduced early fecundity, increased body size, prolonged lifespan and elevated late life fecundity relative to the E lines (Tucic et al 1996(Tucic et al , 1998(Tucic et al , 2004. In terms of selection among males on their effects on female mortality rates, these selection regimes differ dramatically.…”

Section: Introductionmentioning

confidence: 99%

Adaptive male effects on female ageing in seed beetles

2005

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Selection can favour the evolution of a high reproductive rate early in life even when this results in a subsequent increase in the rate of mortality, because selection is relatively weak late in life. However, the optimal reproductive schedule of a female may be suboptimal to any one of her mates, and males may thus be selected to modulate female reproductive rate. Owing to such sexual conflict, coevolution between males and females may contribute to the evolution of senescence. By using replicated beetle populations selected for reproduction at an early or late age, we show that males evolve to affect senescence in females in a manner consistent with the genetic interests of males. 'Late' males evolved to decelerate senescence and increase the lifespan of control females, relative to 'early' males. Our findings demonstrate that adaptive evolution in one sex may involve its effects on senescence in the other, showing that the evolution of optimal life histories in one sex may be either facilitated or constrained by genes expressed in the other.

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“…However, in some cases superior phenotypes have been observed in the progeny of males that are older [ 25 , 26 ] or middle-aged [ 27 – 29 ]. In invertebrates greater female age is associated with a decline in numerous preadult and adult traits of progeny ([ 30 , 31 ] but see [ 32 ]). In birds it is associated with a decline in egg size and in the growth, development and immunity of chicks [ 21 , 33 ], and with accelerated offspring reproductive senescence [ 34 ].…”

Section: Introductionmentioning

confidence: 99%

Viability of Booby Offspring is Maximized by Having One Young Parent and One Old Parent

Drummond

Rodrı́guez

2015

PLoS ONE

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It is widely expected that the quality of offspring will vary with the age of their parents and that this variation should influence animals’ choice of mates. However, theoretical predictions for age effects are contradictory and, to our knowledge, we do not know for any wild animal how the quality of offspring is affected by both parents’ ages across their lifespans, or whether mothers’ and fathers’ ages interact. We tackled this question using long-term data on a highly philopatric, insular population of the blue-footed booby (Sula nebouxii). In this species extra-pair paternity is most common in pairs of two young parents or two old parents, implying that these age combinations might prejudice offspring quality. Analysis of the viability of 3,361 offspring of parents up to 21 years old revealed that fledglings with two young parents or two old parents were least likely to become breeders, whereas fledglings with one young parent and one old parent were most likely to do so. For young parents of either sex, offspring viability increased with age of the other parent; for very old parents, it decreased. These effects could be mediated by parents flexibly modifying their investment in offspring in response to their own and their partners´ ages, but evidence for this was lacking. In 5,343 breeding attempts, although mothers’ and fathers’ ages independently affected four heavily care-dependent breeding traits at the clutch and nestling stages, their interaction did not affect any trait. The effects of parental age combinations on viability could also be mediated by genes: fledglings with one young parent and one old parent could benefit from greater heterozygosity or better genes.

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The short-term and long-term effects of parental age in the bean weevil (Acanthoscelides obtectus)

Cited by 20 publications

References 24 publications

The consequences of parental age for development, body mass and resistance to stress in the red flour beetle

The consequences of parental age for development, body mass and resistance to stress in the red flour beetle

Adaptive male effects on female ageing in seed beetles

Viability of Booby Offspring is Maximized by Having One Young Parent and One Old Parent

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