Animal Behavior and Reproduction

The paper investigates how prenatal maternal effects on body mass decline with age in Japanese quail and finds this decline is independent of postnatal diet.

The paper investigates whether the takeout gene, involved in feeding, influences temporal kin recognition in beetles by comparing gene expression in parental and infanticidal behaviors.

This study shows that prolonged brumation in frogs is associated with reduced brain size and increased reproductive investment, highlighting opposing evolutionary pressures in resource allocation.

This study shows that increased temperature and turbidity together reduce guppy shoaling and increase predator proximity, increasing predation risk.

The paper tests if cognitive traits act as post-mating reproductive isolating barriers in hybrid Swainsons thrushes, finding reduced cognitive abilities in male hybrids during winter but not in females.

This study uses a hydrophobic fluorescent dye to track physical interactions between male and female Aedes aegypti mosquitoes, revealing that copulatory attempts occur regardless of female receptivity and often fail to result in insemination.

The paper investigates maternal age effects on offspring longevity and male production in Daphnia magna, finding a reverse Lansing effect and linking it to lipid provisioning and mitochondrial quality.

The paper finds that inbred house sparrows have shorter telomeres in early life, with some evidence of stronger effects in males.

The paper compares brain transcriptomes of invasive cane toads from different populations to identify gene expression differences linked to dispersal behaviour during range expansion.

The paper shows that POT1 gene expression predicts performance in tree swallows and responds to stress, suggesting it modulates life history strategies more than telomere length itself.

The paper identifies 30 genetic variants associated with offspring number and weight in Drosophila melanogaster under laboratory conditions, supporting a polygenic model with small-effect variants.

The paper identifies gene expression differences in the ventromedial hypothalamus between bold and shy male green anoles, linking them to social behavior predisposition.

The paper shows that a single gene within a supergene contributes to aggressive behavior in white-throated sparrows through allelic imbalance and regulatory variation.

This study identifies Eip74EF's role in promoting sperm elongation in Drosophila males, which correlates with reduced male fecundity and increased female fecundity.

The paper introduces the Animal Network Toolkit (ANT) R package, which provides a multilevel statistical approach for analyzing animal social networks.

The paper identifies a transposable element insertion as the genetic switch for an alternative life history strategy in Colias butterflies, linking it to changes in pigment synthesis and reproductive development.

The paper examines how parental genotypes and care strategies affect nestling gene expression in white-throated sparrows, identifying differentially expressed genes and co-expression modules linked to metabolism and stress response.

The paper shows that paternal age affects offspring telomere length through an epigenetic mechanism, independent of genetic inheritance.

The paper investigates genetic factors influencing ectopic sperm migration in C. elegans, identifying ovulation dynamics and sperm guidance cues as modulators of susceptibility to sperm invasion.

The paper examines gene expression and DNA methylation changes in male burying beetles during parental care, finding that gene expression varies with behavioral state and social context, while DNA methylation does not correlate with gene expression changes.

This study shows that sex-specific differences in 20-hydroxyecdysone (20E) hormone levels, not doublesex (dsx), control sexual dimorphism in butterfly wing patterns.