The defensive behavior of 52 hybrid honeybee (Apis mellifera L.) colonies from four sets of crosses was studied and compared with that of European and Africanized bee colonies. Colonies containing F(1) hybrid workers were obtained through reciprocal crosses between European and Africanized bees. The total number of stings deposited by workers in a moving leather patch in 1 min was recorded. In ...

In an earlier issue of Hormones and Behavior, WynneEdwards and Timonin reviewed more than one decade of studies on the endocrinology of paternal care in male rodents (WynneEdwards and Timonin, 2007). While most studies demonstrated correlations between being a father and hormone levels, especially Wynne-Edwards and co-workers also conducted important experiments during the last years to test fo...

A growing literature documents the myriad penalties for children of incarcerated fathers, but relatively little is known about how paternal incarceration contributes to educational outcomes in early and middle childhood. In this article, we use data from the Fragile Families and Child Wellbeing Study to provide the first estimates of the relationship between paternal incarceration and children’...

An abundance of research demonstrates a robust association between father absence--or low-quality paternal involvement--and daughters' accelerated sexual development, promiscuity, and sexual risk taking. Although recent natural experiments provide support for fathers playing a causal role in these outcomes, these effects have not been examined using a randomized experimental design to eliminate...

We report on likely mixed paternity in a natural population of snow skinks (Niveoscincus mirolepidotus) from alpine Tasmania, Australia. This species is nonterritorial and males guard females after copulation, suggesting that guarding behavior has evolved to prevent rival mating of still-receptive females. To what degree does this mate-guarding prevent rival copulations? We sampled gravid femal...

The behavior of parental chromosomes during the first mitosis of Drosophila simulans zygotes obtained from unidirectional incompatible crosses is described and it is demonstrated that the condensation of parental chromatin complements was asynchronous. The timing of paternal chromatin condensation appeared to be delayed in these embryos, so that condensed maternal chromosomes and entangled prop...

T adverse consequences of maternal alcohol intake during pregnancy on fetal outcome are well documented (for a review, see Meyer and Riley 1986). However, the possibility that paternal alcohol consump­ tion also may induce deficits in the proge­ ny has received relatively little attention. This is somewhat surprising, as alco­ holism appears to be linked genetically with the father in humans (M...

Previous research suggests that serious maternal mental illness is associated with adverse youth outcomes. However, this research is of limited ability to inform appropriate social work and social policy responses for at least two reasons. First, it is based on samples that are not racially or ethnically diverse and that do not target low-income families; second, it does not examine whether dif...

OBJECTIVE Children and adolescents living in rural communities may be at particular risk for psychiatric problems, yet factors associated with mental health service use in these populations are not clear. This study examined the role of father warmth in offspring psychological treatment utilization in community sample of rural families (n = 298). METHODS Observer ratings of paternal warmth we...

This research used structural equation modeling to examine relations among family dynamics, attorney involvement, and the adjustment of young children (0-6 years) at the time of parental separation. The article presents baseline data (N = 102 nonresidential fathers and N = 110 primary caretaking mothers) from a larger longitudinal study. Results showed that the effects of parental conflict on c...