Animal Behavior and Reproduction

This study examines how meerkats' spatial positions during foraging affect weight gain, finding age-related differences and unexpected outcomes for dominant females.

The paper measures yolk steroid hormone concentrations in Japanese Quail eggs during incubation and finds they decline by Day 15, with temperature differences between incubators affecting hormone levels.

This study examines how selection for male aggression in Drosophila melanogaster affects reproductive traits, chemical signaling, and lifespan, revealing trade-offs between reproductive success and longevity.

The paper develops a behavioral assay and uses a Hidden Markov Model to analyze bold-shy behaviors in medaka fish, identifying direct and social genetic effects on behavior.

The paper examines how multiple signaling traits in lizards correlate with physiological factors and social behavior, finding both redundancy and distinct signaling roles.

This study finds that two matings in female Drosophila melanogaster cause more genital and abdominal wounds than a single mating.

This study shows genetic heterogeneity in Drosophila leads to nonadditive increases in spatial preference and stopping time in group foraging behavior.

The paper uses circadian activity data and machine learning to predict breeding phenology in Nicrophorus nepalensis across different elevations and photoperiods, achieving high accuracy.

This study investigates the mechanisms behind correlated trait divergence during speciation, finding that environmental factors, not genetics, primarily drive the divergence of color patterns and chemical traits in stick insects.

This study shows that reproductive experience in male California mice affects memory, anxiety, and reproductive physiology, with caregiving and siring contributing differently to these changes.

The study assesses the repeatability of nest defense in female northern house wrens across different predator types and threat levels, finding it repeatable for similar and unknown risks but not for high-risk predators.

This study shows that group personality, not acoustic noise, drives variation in decision-making and cohesion in guppy shoals.

This study evaluates behavioral consistency in Baltic salmon parr, finding that locomotory activity is more consistent over time than thigmotaxis and aggressive behavior.

The paper examines extra-pair paternity in blue and great tits in a primeval forest, finding high promiscuity rates that do not impact reproductive success.

The paper presents a chromosome-level genome assembly for Uta stansburiana and uses RNA-seq data to identify gene expression differences linked to pace-of-life syndromes across environments.

QInfoMating is software that analyzes mating data using information theory and model selection to estimate sexual selection and assortative mating patterns.

The paper investigates how gut microbiomes affect sperm competition in Drosophila by testing synthetic bacterial consortia and identifies microbial effects on sperm transfer and viability.

This study examines how temperature and turbidity affect prey detectability by predators, finding that warmer water increases prey conspicuousness, counteracting the negative effects of turbidity.

This study examines dyadic contests in horned aphids, finding no kin-discrimination and suggesting duels assess reproductive value rather than compete for resources.

This study tests whether post-ejaculatory sperm environment affects offspring performance beyond paternity in capelin fish, finding no such effect.

The paper examines how larval density and genotype affect accessory gland size in Drosophila melanogaster under nutrient-rich conditions, finding no effect of density but significant genetic variation.

The paper examines neuroanatomical changes in Heliconius butterflies during ecological speciation, finding heritable reductions in visual brain investment at high altitudes.

The paper observes that parasitic larvae in burying beetles hatch synchronously with host larvae despite a two-day delay in reproductive behavior.

The paper examines genetic and phenotypic correlations between survival and fecundity in house sparrows using long-term breeding data and multivariate animal models, finding no evidence of a trade-off.

The paper introduces the risk-MVT (rMVT), a generalization of the Marginal Value Theorem that incorporates predation risk, showing how different risks affect optimal foraging strategies.

This study finds bold zebrafish learn faster in associative tasks than shy zebrafish, but final performance is similar, suggesting initial interactions, not learning capacity, drive differences.

This study shows that divergent selection increases reproductive isolation early in speciation, but not with more generations, and suggests phenotypic plasticity contributes to this pattern.

The paper identifies a novel male accessory gland peptide in the brown planthopper that reduces female post-mating receptivity without affecting oviposition.

This study investigates the effects of paternal age and sperm storage duration on offspring survival and reproduction in Drosophila, finding no age effect but a significant impact of sperm storage duration.

This study examines asymmetric reinforcement of reproductive isolation in two damselfly species with female morphs exhibiting alternative reproductive strategies, finding stronger reinforcement in premating and postmating barriers.