Contextual Risk and the Association Between Sensitive Parenting and Social Competence During Early Childhood

Both contextual risk and sensitive parenting have been associated with children’s social skills in early childhood (Brody, Stoneman, Smith & Gibson, 1999; Connell & Prinz, 2002; Oravecz, Koblinsky & Randolph, 2008, Trentacosta, 2008). However, it is not clear how sensitive parenting might impact children’s social skill development in the context of accumulation of risk. The current study tests two possible models. The first model, based on Rutters’ (1979) tests the theory that cumulative risk may moderate the relationship between sensitive parenting and social skills. The second model based on The Family Stress model (Conger, Conger, Elder, Lorenz, Simons & Whitbeck, 1992) tests the theory that sensitive parenting mediates the relationship between accumulation of risk and children’s social skills. The results supported the first model indicating that cumulative risk moderated the relationship between sensitive parenting and children’s social skills. When risk accumulated, there was a relationship between sensitive parenting and social skills where the highest level of sensitive parenting was associated with the highest level of social skills

The interaction of parenting and the serotonin transporter gene on trajectories of fearfulness in early childhood

Children who are more fearful and inhibited during early childhood are at greater risk for social problems (e.g., loneliness, social isolation) and clinically significant internalizing disorders during adolescence and adulthood (e.g., Rubin, Chen, McDougall, Bowker, & McKinnon, 1995; Williams et al., 2009). While the impact of fearful temperament on adjustment indices are regularly the focus of study, less well understood are biological and social processes that may affect the development of fearful temperament. The present study considered the role of the 5-HTTLPR polymorphism and parenting on change in fearful and inhibited temperamental characteristics during early childhood. The s/s genotype was expected to be associated with elevated and sustained levels of fearful temperament. Moreover, supportive parenting was expected to be associated with less fearful temperament while more harsh parenting would be associated with more fearful temperamental characteristics, especially for children with the s/s 5-HTTLPR genotype. Study hypotheses were tested using 165 families (i.e., biological mothers and fathers, 3-5 year old children) who participated in the Family Transitions Project (FTP: R. D. Conger & K. J. Conger, 2002). Children were genotyped using cheek swabs. Parents reported on children’s temperamental characteristics at ages 3, 4, and 5. Independent observations of mothers and fathers completing a puzzle with their 3 and 4 year old children were used to measure parenting. Results were partially supportive of predictions. Parenting interacted with the 5-HTTLPR genotype to predict trajectories of shyness and soothability dimensions of fearful temperament, but the pattern of findings varied for mothers and fathers. Results are discussed in terms of differential susceptibility and the conceptualization of risk and resilience

Cumulative Socio-contextual Risk and Child Abuse Potential in Parents of Young Children: Can Social Support Buffer the Impact?

Child abuse potential refers to characteristics and practices closely linked to child abuse. Past investigations document that the number of risk factors parents experience is a correlate of child abuse potential. The purpose of this investigation was to test a model with multiple domains of risk including cumulative socio-contextual risk, parenting locus of control, children’s externalizing behavior problems, social support, and child abuse potential. Using self-report data from eighty-seven mothers of children between the ages of 1–5 years old, bivariate correlations and linear regression analyses revealed that cumulative socio-contextual risk was positively associated with child abuse potential and that this association remained statistically significant when controlling for parenting locus of control and child externalizing behavior problems. Additionally, social support moderated the association between cumulative risk and child abuse potential

Contextual Risk and the Association Between Sensitive Parenting and Social Competence During Early Childhood

Both contextual risk and sensitive parenting have been associated with children’s social skills in early childhood (Brody, Stoneman, Smith & Gibson, 1999; Connell & Prinz, 2002; Oravecz, Koblinsky & Randolph, 2008, Trentacosta, 2008). However, it is not clear how sensitive parenting might impact children’s social skill development in the context of accumulation of risk. The current study tests two possible models. The first model, based on Rutters’ (1979) tests the theory that cumulative risk may moderate the relationship between sensitive parenting and social skills. The second model based on The Family Stress model (Conger, Conger, Elder, Lorenz, Simons & Whitbeck, 1992) tests the theory that sensitive parenting mediates the relationship between accumulation of risk and children’s social skills. The results supported the first model indicating that cumulative risk moderated the relationship between sensitive parenting and children’s social skills. When risk accumulated, there was a relationship between sensitive parenting and social skills where the highest level of sensitive parenting was associated with the highest level of social skills

The interaction of parenting and the serotonin transporter gene on trajectories of fearfulness in early childhood

Children who are more fearful and inhibited during early childhood are at greater risk for social problems (e.g., loneliness, social isolation) and clinically significant internalizing disorders during adolescence and adulthood (e.g., Rubin, Chen, McDougall, Bowker, & McKinnon, 1995; Williams et al., 2009). While the impact of fearful temperament on adjustment indices are regularly the focus of study, less well understood are biological and social processes that may affect the development of fearful temperament. The present study considered the role of the 5-HTTLPR polymorphism and parenting on change in fearful and inhibited temperamental characteristics during early childhood. The s/s genotype was expected to be associated with elevated and sustained levels of fearful temperament. Moreover, supportive parenting was expected to be associated with less fearful temperament while more harsh parenting would be associated with more fearful temperamental characteristics, especially for children with the s/s 5-HTTLPR genotype. Study hypotheses were tested using 165 families (i.e., biological mothers and fathers, 3-5 year old children) who participated in the Family Transitions Project (FTP: R. D. Conger & K. J. Conger, 2002). Children were genotyped using cheek swabs. Parents reported on children’s temperamental characteristics at ages 3, 4, and 5. Independent observations of mothers and fathers completing a puzzle with their 3 and 4 year old children were used to measure parenting. Results were partially supportive of predictions. Parenting interacted with the 5-HTTLPR genotype to predict trajectories of shyness and soothability dimensions of fearful temperament, but the pattern of findings varied for mothers and fathers. Results are discussed in terms of differential susceptibility and the conceptualization of risk and resilience

Coupling plant litter quantity to a novel metric for litter quality explains C storage changes in a thawing permafrost peatland

Permafrost thaw is a major potential feedback source to climate change as it can drive the increased release of greenhouse gases carbon dioxide (CO2 ) and methane (CH4 ). This carbon release from the decomposition of thawing soil organic material can be mitigated by increased net primary productivity (NPP) caused by warming, increasing atmospheric CO2 , and plant community transition. However, the net effect on C storage also depends on how these plant community changes alter plant litter quantity, quality, and decomposition rates. Predicting decomposition rates based on litter quality remains challenging, but a promising new way forward is to incorporate measures of the energetic favorability to soil microbes of plant biomass decomposition. We asked how the variation in one such measure, the nominal oxidation state of carbon (NOSC), interacts with changing quantities of plant material inputs to influence the net C balance of a thawing permafrost peatland. We found: (1) Plant productivity (NPP) increased post-thaw, but instead of contributing to increased standing biomass, it increased plant biomass turnover via increased litter inputs to soil; (2) Plant litter thermodynamic favorability (NOSC) and decomposition rate both increased post-thaw, despite limited changes in bulk C:N ratios; (3) these increases caused the higher NPP to cycle more rapidly through both plants and soil, contributing to higher CO2 and CH4  fluxes from decomposition. Thus, the increased C-storage expected from higher productivity was limited and the high global warming potential of CH4 contributed a net positive warming effect. Although post-thaw peatlands are currently C sinks due to high NPP offsetting high CO2 release, this status is very sensitive to the plant community's litter input rate and quality. Integration of novel bioavailability metrics based on litter chemistry, including NOSC, into studies of ecosystem dynamics, is needed to improve the understanding of controls on arctic C stocks under continued ecosystem transition.Open access articleThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]

Coupling plant litter quantity to a novel metric for litter quality explains C storage changes in a thawing permafrost peatland.

Permafrost thaw is a major potential feedback source to climate change as it can drive the increased release of greenhouse gases carbon dioxide (CO2 ) and methane (CH4 ). This carbon release from the decomposition of thawing soil organic material can be mitigated by increased net primary productivity (NPP) caused by warming, increasing atmospheric CO2 , and plant community transition. However, the net effect on C storage also depends on how these plant community changes alter plant litter quantity, quality, and decomposition rates. Predicting decomposition rates based on litter quality remains challenging, but a promising new way forward is to incorporate measures of the energetic favorability to soil microbes of plant biomass decomposition. We asked how the variation in one such measure, the nominal oxidation state of carbon (NOSC), interacts with changing quantities of plant material inputs to influence the net C balance of a thawing permafrost peatland. We found: (1) Plant productivity (NPP) increased post-thaw, but instead of contributing to increased standing biomass, it increased plant biomass turnover via increased litter inputs to soil; (2) Plant litter thermodynamic favorability (NOSC) and decomposition rate both increased post-thaw, despite limited changes in bulk C:N ratios; (3) these increases caused the higher NPP to cycle more rapidly through both plants and soil, contributing to higher CO2 and CH4  fluxes from decomposition. Thus, the increased C-storage expected from higher productivity was limited and the high global warming potential of CH4 contributed a net positive warming effect. Although post-thaw peatlands are currently C sinks due to high NPP offsetting high CO2 release, this status is very sensitive to the plant community's litter input rate and quality. Integration of novel bioavailability metrics based on litter chemistry, including NOSC, into studies of ecosystem dynamics, is needed to improve the understanding of controls on arctic C stocks under continued ecosystem transition