scholarly journals Early experience and parent-of-origin-specific effects influence female reproductive success in mice

2006 ◽  
Vol 2 (2) ◽  
pp. 253-256 ◽  
Author(s):  
Reinmar Hager ◽  
Rufus A Johnstone
Keyword(s):  
Reproductive Success ◽  
Underlying Mechanism ◽  
Short Term ◽  
Female Reproductive Success ◽  
Specific Effects ◽  
Fitness Consequences ◽  
Mixed Litter ◽  
Offspring Growth ◽  
Parent Of Origin

Recent studies on mammals investigating parent-of-origin-specific effects such as genomic imprinting and maternal effects have demonstrated their impact on short-term measures of fitness, for example offspring growth. However, the long-term fitness consequences of parent-of-origin-specific effects and their role outside the immediate mother–offspring interaction remain largely unexplored. Here, we show that female mice mated to males that inherited the same set of paternal and maternal genes as themselves have a higher reproductive success than females mated to males of reciprocal genotype. Furthermore, we demonstrate that the early social environment experienced by an individual influences its reproductive success. Females raised with unrelated siblings in a mixed litter had a subsequent lower reproductive success than those that were fostered together with all their biological siblings in unmixed litters. Our results highlight the important influence of parent-of-origin-specific effects and conditions in early development on long-term reproductive success in mammals and suggest that parent-of-origin-specific effects may provide the underlying mechanism for beneficial coadaptation between genotypes, for example, in mate choice.

Corticosterone alone does not trigger a short term behavioural shift in incubating female common eidersSomateria mollissima, but does modify long term reproductive success

2005 ◽  
Vol 36 (4) ◽  
pp. 306-312 ◽  
Author(s):  
François Criscuolo ◽  
Olivier Chastel ◽  
Fabrice Bertile ◽  
Geir Wing Gabrielsen ◽  
Yvon Le Maho ◽  
...  
Keyword(s):  
Reproductive Success ◽  
Short Term

scholarly journals Does vegetation change over 28 years affect habitat use and reproductive success?

The Auk ◽  
2019 ◽  
Vol 137 (1) ◽  
Author(s):  
Karolina Fierro-Calderón ◽  
Thomas E Martin
Keyword(s):  
Reproductive Success ◽  
Habitat Use ◽  
Nest Survival ◽  
Selection Function ◽  
Patch Use ◽  
Fitness Consequences ◽  
Long Term Changes ◽  
Changes Over Time ◽  
Over Time

Abstract Individuals should prefer and use habitats that confer high fitness, but habitat use is not always adaptive. Vegetation in natural landscapes changes gradually and the ability of species to adaptively adjust their habitat use to long-term changes is largely unstudied. We studied nest patch and territory use over 28 yr in Orange-crowned Warblers (Oreothlypis celata) in a system that has undergone natural long-term changes in vegetation. Abundance of maple (Acer grandidentatum), its preferred nesting habitat, gradually declined from 1987 to 2015. We examined whether habitat use and its fitness consequences changed as the availability of preferred habitat decreased. We used resource selection function models to determine changes over time in the probability of using a nest patch given available patches, and the probability of using a territory given available territories. We estimated nest survival to evaluate changes over time in the fitness consequences of nest patch use. We also compared habitat use (nest patch and territory) and fitness (nest survival) between areas with naturally reduced abundance of maple and experimentally increased abundance of maple (fenced areas). Nest patch use depended on maple abundance and did not change drastically across 28 yr, even though the availability of preferred maple patches decreased over time. In contrast, nest survival tended to decrease over time. We did not see differences in nest patch use and nest survival between unfenced and fenced areas, unlike territory use, which increased with the abundance of maple in fenced areas and decreased in unfenced areas. Our study depicts one example of relatively unchanged habitat use in the face of decreased availability of preferred vegetation across years, with a resulting decrease in reproductive success. Investigating changes in habitat use and fitness consequences for animals exposed to long-term habitat change is necessary to understand adaptive behavioral responses.

scholarly journals Effects of handling and short-term captivity: a multi-behaviour approach using red sea urchins, Mesocentrotus franciscanus

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6556 ◽  
Author(s):  
Aneesh P.H. Bose ◽  
Daniel Zayonc ◽  
Nikolaos Avrantinis ◽  
Natasha Ficzycz ◽  
Jonathan Fischer-Rush ◽  
...  
Keyword(s):  
Red Sea ◽  
Sea Urchins ◽  
Abundant Species ◽  
Ecosystem Functions ◽  
Short Term ◽  
Induced Stress ◽  
Aggregation Behaviour ◽  
Fitness Consequences ◽  
Term Monitoring

Understanding the effects of captivity-induced stress on wild-caught animals after their release back into the wild is critical for the long-term success of relocation and reintroduction programs. To date, most of the research on captivity stress has focused on vertebrates, with far less attention paid to invertebrates. Here, we examine the effect of short-term captivity (i.e., up to four days) on self-righting, aggregation, and predator-escape behaviours in wild-caught red sea urchins, Mesocentrotus franciscanus, after their release back into the wild. Aggregation behaviour, which has been linked to feeding in sea urchins, was not affected by handling or captivity. In contrast, the sea urchins that had been handled and released immediately, as well as those that were handled and held captive, took longer to right themselves and were poorer at fleeing from predators than wild, unhandled sea urchins. These results indicate that handling rather than captivity impaired these behaviours in the short term. The duration of captivity did not influence the sea urchin behaviours examined. Longer-term monitoring is needed to establish what the fitness consequences of these short-term behavioural changes might be. Our study nevertheless highlights the importance of considering a suite of responses when examining the effects of capture and captivity. Our findings, which are based on a locally abundant species, can inform translocation efforts aimed at bolstering populations of ecologically similar but depleted invertebrate species to retain or restore important ecosystem functions.

scholarly journals Intelligence and Fitness: The Mediating Role of Educational Level

2017 ◽  
Vol 15 (2) ◽  
pp. 147470491770693 ◽  
Author(s):  
Janko Međedović
Keyword(s):  
Reproductive Success ◽  
Cognitive Abilities ◽  
Evolutionary Status ◽  
Age At First Birth ◽  
First Birth ◽  
Short Term ◽  
Number Of Children ◽  
Mediating Role ◽  
Fitness Indicators

The evolutionary status of intelligence is not clear: It is positively related to various indicators of fitness but negatively to reproductive success as the most important fitness marker. In the present research, we explored the links between intelligence and three fitness indicators: number of children (short-term reproductive success), number of grandchildren (long-term reproductive success), and age at first birth. Participants were individuals in a postreproductive stage ( N = 191; mean age = 66.5 years). Intelligence had a positive correlation with short-term reproductive success and age at first birth but a negative correlation with long-term reproductive success. Participants’ education turned out to be a significant mediator of the link between intelligence and criterion measures. The results showed that intelligence can elevate short-term reproductive success. Furthermore, individuals with higher intellectual abilities tended to delay reproduction, which negatively affected their long-term reproductive success. Education was revealed as a very important resource which affects the link between cognitive abilities and fitness, thus proving its evolutionary role in contemporary populations.

scholarly journals A Decomposition Analysis of Capital Structure: Evidence from Pakistan’s Manufacturing Sector

2012 ◽  
Vol 17 (1) ◽  
pp. 1-31 ◽  
Author(s):  
Attiya Yasmin Javid ◽  
Qaisar Imad
Keyword(s):  
Small Firms ◽  
Manufacturing Sector ◽  
Decomposition Analysis ◽  
Order Theory ◽  
Short Term ◽  
Pecking Order Theory ◽  
Listed Firms ◽  
Internal Resources ◽  
Specific Effects

This study investigates the determinants of the various components of debt—short- and long-term debt and their categories—in the case of nonfinancial listed firms in Pakistan for the period 2008–10. We make a significant distinction between these determinants depending on the components of debt issued: long-term or short-term forms of debt. Our results show that large firms are more likely to have access to long-term debt borrowing than small firms and that, due to supply constraints, small firms resort to short-term forms of debt. Firms with higher potential for growth prefer using less long-term debt as well as debt with fewer restrictive arrangements in order to become more financially flexible. Firms with sufficient fixed assets can generate external finance more easily and at lower cost by using these assets as collateral, which supports the tradeoff theory. Firms generating high levels of profit, however, may choose to finance their investments using internal resources rather than by raising debt finance, which conforms to the pecking order theory. Our results also confirm the presence of the inertia effect and industry-specific effects, and are robust to alternative estimation techniques.

scholarly journals Lasting Effects of Intrauterine Exposure to Preeclampsia on Offspring and the Underlying Mechanism

2019 ◽  
Vol 09 (03) ◽  
pp. e275-e291 ◽  
Author(s):  
Hui Qing Lu ◽  
Rong Hu
Keyword(s):  
Clinical Management ◽  
Neurological Diseases ◽  
Large Body ◽  
Underlying Mechanism ◽  
Pregnancy Complication ◽  
Adverse Impact ◽  
Long Term Effects ◽  
Epidemiological Evidence ◽  
Short Term

AbstractPreeclampsia is a common pregnancy complication which can have adverse impact on both mother and baby. In addition to the short term effects, a large body of epidemiological evidence has found preeclampsia can exert long-lasting effects on mother and offspring. Studies suggest that offspring exposed to preeclampsia are at a higher risk of developing cardiovascular, metabolic, and neurological diseases, as well as other diseases. However, studies investigating the underlying mechanism are limited, the exact mechanism still remains unclear. In this study, we will review the epidemiological evidence and studies exploring the mechanism underlying long-term effects of preeclampsia on offspring. Further studies should be targeted at this field so as to implement effective clinical management to prevent the exposed offspring from potential diseases.

scholarly journals Genetic trade-offs between male reproductive traits in Drosophila melanogaster

2018 ◽  
Vol 14 (10) ◽  
pp. 20180474 ◽  
Author(s):  
David C. S. Filice ◽  
Tristan A. F. Long
Keyword(s):  
Drosophila Melanogaster ◽  
Reproductive Success ◽  
Selection Pressure ◽  
Reproductive Traits ◽  
Male Reproductive Success ◽  
Short Term ◽  
Trade Offs ◽  
Sexual Traits ◽  
Stimulation Of

In Drosophila melanogaster , males engage in both extensive pre- and post-copulatory competition for the opportunity to mate with females and subsequently sire offspring. The selection pressure for increased male reproductive success has resulted in the evolution of a wide diversity of sexual traits. However, despite strong selection, individuals often exhibit considerable phenotypic variation in the expression of these traits, and it is unclear if any of this variation is owing to underlying genetic trade-offs. Here, using hemiclonal flies, we examine how male reproductive success covaries with their ability to induce long-term stimulation of oogenesis and oviposition in their mates, and how this relationship may change over time. We found that males from hemiclone lines with phenotypes that were more successful in a short-term reproductive ‘scramble’ environment were less effective at stimulating long-term fecundity in females. Furthermore, we observed that males from hemiclone lines which showed the most improvement over a longer reproductive interaction period also tended to stimulate higher long-term fecundity in females. Together, these results indicate the presence of genetic trade-offs between different male reproductive traits and offer insights into the maintenance of their variation.

scholarly journals Tissue-Specific Effects of Bariatric Surgery Including Mitochondrial Function

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Simon N. Dankel ◽  
Vidar Staalesen ◽  
Bodil Bjørndal ◽  
Rolf K. Berge ◽  
Gunnar Mellgren ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Mitochondrial Function ◽  
Metabolic Regulation ◽  
Protein Profile ◽  
Metabolic Parameters ◽  
Acute Effects ◽  
Long Term Effects ◽  
Short Term ◽  
Specific Effects

A better understanding of the molecular links between obesity and disease is potentially of great benefit for society. In this paper we discuss proposed mechanisms whereby bariatric surgery improves metabolic health, including acute effects on glucose metabolism and long-term effects on metabolic tissues (adipose tissue, skeletal muscle, and liver) and mitochondrial function. More short-term randomized controlled trials should be performed that include simultaneous measurement of metabolic parameters in different tissues, such as tissue gene expression, protein profile, and lipid content. By directly comparing different surgical procedures using a wider array of metabolic parameters, one may further unravel the mechanisms of aberrant metabolic regulation in obesity and related disorders.

scholarly journals Comparative analysis of different host adaptation in two rice planthopper species

2020 ◽  
Author(s):  
Hai-Jian Huang ◽  
Jia-Rong Cui ◽  
Xiao-Yue Hong
Keyword(s):  
Gene Expression ◽  
Comparative Analysis ◽  
Insect Pests ◽  
Brown Planthopper ◽  
Underlying Mechanism ◽  
Host Adaptation ◽  
Short Term ◽  
Expression Change ◽  
Rice Plants

Abstract Background: Host adaptation is the major determinant of insect diversification. However, knowledge of different host ranges in very close-related species is scarce. The brown planthopper (Nilaparvata lugens, BPH) and small brown planthopper (Laodelphax striatellus, SBPH) are the most destructive insect pests belonging to Delphacidae. These two species differ in the host range, but the underlying mechanism remains unknown. Comparative analysis of planthoppers’ responses to different diets would improve our knowledge of host adaptation regarding herbivores insects.Results: SBPH could well colonize on rice and wheat plants, while BPH survived on rice plants only. We analyzed the gene expression change of SBPH that transferred from rice plants to wheat plants in a short term (rSBPH vs tSBPH) and colonized on wheat plants for a long term (rSBPH vs wSBPH). We found that the majority of differentially expressed genes in SBPH showed similar expression change between short-term transfer and long-term colonization. Based on the comparative analysis of BPH and SBPH after transferring, genes associated with sugar transporters and heat shock proteins varied similarly. However, most of genes were reciprocally regulated between two species. The detoxification-related genes were upregulated in SBPH after transferring, but downregulated in BPH under the same condition; ribosomal-related genes were down regulated in SBPH after transferring, but upregulated in BPH under the same condition.Conclusion: The results of this study provided evidence that host plants played dominant roles in shaping the gene expression, with alike responding of most genes between short-term transfer and long-term colonization in SBPH. In contrast, the majority of genes in BPH were reciprocally regulated in comparison to those of SBPH, and unfitness of BPH on wheat plants might be determined within 24 hours after transferring. This study deepens our understanding of different host ranges regarding two planthopper species, and may provide a potential strategy for pest management.

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