scholarly journals Effects of maternal age and stress on offspring quality in a viviparous fly

2021 ◽  
Author(s):  
Jennifer S. Lord ◽  
Robert Leyland ◽  
Lee R. Haines ◽  
Antoine M. G. Barreaux ◽  
Michael B. Bonsall ◽  
...  
Keyword(s):  
Maternal Age ◽  
Offspring Quality

scholarly journals Effects of maternal age and stress on offspring quality in a viviparous fly

2020 ◽  
Author(s):  
Jennifer Lord ◽  
Robert Leyland ◽  
Lee Haines ◽  
Antoine Barreaux ◽  
Michael Bonsall ◽  
...  
Keyword(s):  
Maternal Age ◽  
Offspring Quality

scholarly journals Paternal but not maternal age influences early-life performance of offspring in a long-lived seabird

2016 ◽  
Vol 283 (1828) ◽  
pp. 20152318 ◽  
Author(s):  
Rémi Fay ◽  
Christophe Barbraud ◽  
Karine Delord ◽  
Henri Weimerskirch
Keyword(s):  
Maternal Age ◽  
Paternal Age ◽  
Parental Age ◽  
Fitness Component ◽  
Offspring Performance ◽  
Offspring Quality ◽  
Delayed Effects ◽  
Offspring Fitness ◽  
Demographic Traits ◽  
Iteroparous Species

Variability in demographic traits between individuals within populations has profound implications for both evolutionary processes and population dynamics. Parental effects as a source of non-genetic inheritance are important processes to consider to understand the causes of individual variation. In iteroparous species, parental age is known to influence strongly reproductive success and offspring quality, but consequences on an offspring fitness component after independence are much less studied. Based on 37 years longitudinal monitoring of a long-lived seabird, the wandering albatross, we investigate delayed effects of parental age on offspring fitness components. We provide evidence that parental age influences offspring performance beyond the age of independence. By distinguishing maternal and paternal age effects, we demonstrate that paternal age, but not maternal age, impacts negatively post-fledging offspring performance.

scholarly journals The role of maternal age and context-dependent maternal effects in the offspring provisioning of a long-lived marine teleost

2018 ◽  
Vol 5 (1) ◽  
pp. 170966 ◽  
Author(s):  
Linsey M. Arnold ◽  
Wade D. Smith ◽  
Paul D. Spencer ◽  
Allison N. Evans ◽  
Scott A. Heppell ◽  
...  
Keyword(s):  
Maternal Effects ◽  
Maternal Age ◽  
Narrow Range ◽  
Somatic Growth ◽  
Age Effects ◽  
Offspring Quality ◽  
Young Females ◽  
Context Dependent ◽  
Intrinsic Function

Despite evidence of maternal age effects in a number of teleost species, there have been challenges to the assertion that maternal age intrinsically influences offspring quality. From an evolutionary perspective, maternal age effects result in young females paradoxically investing in less fit offspring despite a greater potential fitness benefit that might be gained by allocating this energy to individual somatic growth. Although a narrow range of conditions could lead to a maternal fitness benefit via the production of lower quality offspring, evolutionary theorists suggest these conditions are seldom met and that the reported maternal age effects are more likely products of the environmental context. Our goal was to determine if maternal effects operated on offspring provisioning in a long-lived rockfish (genus Sebastes ), and to evaluate any such effects as an intrinsic function of maternal age or a context-dependent effect of the offspring release environment. We found that offspring provisioning is a function of both maternal age and the timing of offspring release; older females exhibit increased provisioning over younger females throughout the spawning season despite a decrease in provisioning across all maternal ages as the season progresses. These findings suggest a role for both maternal age effects and a potential context-dependent maternal effect in population productivity, carrying important implications when modelling population persistence and resilience.

Effect of Maternal Age on Offspring Quality in Tsetse (Diptera: Glossinidae)

1998 ◽  
Vol 35 (3) ◽  
pp. 210-215 ◽  
Author(s):  
G. S. McIntyre ◽  
R. H. Gooding
Keyword(s):  
Maternal Age ◽  
Offspring Quality

Maternal Knowledge Factor, Maternal Age and Maternal Parity Associated with Genesis of Normal Delivery at Palembang Hospital of Bari Year 2017

2018 ◽  
Vol 1 (1) ◽  
pp. 43-50
Author(s):  
Juliana Widyastuti Wahyuningsih
Keyword(s):  
Maternal Age ◽  
World Health ◽  
Survey Method ◽  
P Value ◽  
Maternal Knowledge ◽  
Cross Sectional ◽  
Normal Delivery ◽  
Significance Level ◽  
Birth Canal ◽  
Maternal Parity

Childbirthis a processLabor of opening and depleting the cervix and the fetus down into the birth canal. Birth is a process in which the fetus and amniotic are pushed out through the birth canal. (Sarwono, 2008). According to the World Health Organization (WHO) estimates more than 585,000 mothers annually die during pregnancy or childbirth. Indonesia Health Demographic Survey (SDKI) Survey in 2012, Maternal Mortality Rate in Indonesia is still high at 359 per 100,000 live births. The purpose of this study is the knowledge of maternal knowledge, maternal age, and maternal parity associated with normal birth events at Palembang Bari Hospital 2017. This study used analytical survey method with cross sectional approach. The population in this study were all maternal mothers at the Palembang Bari Hospital in 2017. Sampling in the study was conducted non-randomly with the technique of "Accidental Sampling". Data analysis was done univariat and bivariate with Chi-Square statistical test with significance level α = 0,05. The result of this research shows that there is correlation between mother's knowledge with normal delivery incidence with p value 0,001, there is correlation between mother age with normal delivery incidence with p value 0,009, there is relation between mother parity with normal delivery incidence with p value 0,001. From result of this research hopes healthcare workers can improve normal delivery care services and more often to carry out maternal safety counseling.

Parental breeding age effects on descendants’ longevity interact over two generations in matrilines and patrilines

2019 ◽  
Author(s):  
Zac Wylde ◽  
Foteini Spagopoulou ◽  
Amy K Hooper ◽  
Alexei A Maklakov ◽  
Russell Bonduriansky
Keyword(s):  
Maternal Age ◽  
First Generation ◽  
Age Effects ◽  
Population Variation ◽  
Paternal Age ◽  
Interactive Effects ◽  
Competitive Environment ◽  
Larval Diet ◽  
Negative Effects ◽  
Two Generations

Individuals within populations vary enormously in mortality risk and longevity, but the causes of this variation remain poorly understood. A potentially important and phylogenetically widespread source of such variation is maternal age at breeding, which typically has negative effects on offspring longevity. Here, we show that paternal age can affect offspring longevity as strongly as maternal age does, and that breeding age effects can interact over two generations in both matrilines and patrilines. We manipulated maternal and paternal ages at breeding over two generations in the neriid fly Telostylinus angusticollis. To determine whether breeding age effects can be modulated by the environment, we also manipulated larval diet and male competitive environment in the first generation. We found separate and interactive effects of parental and grandparental ages at breeding on descendants’ mortality rate and lifespan in both matrilines and patrilines. These breeding age effects were not modulated by grandparental larval diet quality or competitive environment. Our findings suggest that variation in maternal and paternal ages at breeding could contribute substantially to intra-population variation in mortality and longevity.

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