Microevolution of Pieris butterfly genes involved in host plant adaptation along a host plant community cline.

Herbivorous insects have evolved counteradaptations to overcome the chemical defences of their host plants. Several of these counteradaptations have been elucidated at the molecular level, in particular for insects specialized on cruciferous host plants. While the importance of these counteradaptations for host plant colonization is well established, little is known about their microevolutionary dynamics in the field.

Niche conservatism promotes speciation in cycads: the case of Dioon merolae (Zamiaceae) in Mexico.

Niche conservatism is the tendency of lineages to retain the same niche as their ancestors. It constrains biological groups and prevents ecological divergence. However, theory predicts that niche conservatism can hinder gene flow, strengthen drift and increase local adaptation: does it mean that it also can facilitate speciation? Why does this happen? We aim to answer these questions.

Analyses of single nucleotide polymorphisms identified by ddRAD-seq reveal genetic structure of tea germplasm and Japanese landraces for tea breeding.

To obtain genetic information about the germplasm of tea (Camellia sinensis L.) in Japan, 167 accessions including 138 var. sinensis (96 Japanese var.

The Effects of Amplification on Listening Self-Efficacy in Adults With Sensorineural Hearing Loss.

Objectives The aim of this study was to evaluate listening self-efficacy ratings between aided and unaided conditions in different communication environments and to determine what patient- and device-centered variables were associated with individual differences. Method An observational, cross-sectional study design was used to evaluate 165 older adults with mild to moderately severe sensorineural hearing loss who wore hearing aids at least 8 hr per week. Listening self-efficacy for both unaided and aided listening was measured using the Listening Self-Efficacy Questionnaire (LSEQ; Smith, Pichora-Fuller, Watts, & La More, 2011), consisting of a global score and subscales of Dialogue in Quiet, Directed Listening, and Complex Listening.

Dimensions of women's empowerment and their influence on the utilization of maternal health services in an Egyptian village: a multivariate analysis.

This study investigated the association between women's empowerment and the utilization of maternal health services by women in Egypt and analyzed the dimensions of women's empowerment that are associated with increased health service utilization. A cross-sectional survey was conducted in a village in Egypt in November 2007. A total of 189 women, who had ever been married and had at least one child, were interviewed to collect data on the utilization of maternal health services, such as the number of antenatal care (ANC) visits during their pregnancies and whether delivery of their child was attended by skilled health personnel.