Animal Behavior and Reproduction

This study investigates intrinsic reproductive isolation between two ecologically divergent Anolis lizard populations through hybridization experiments, finding evidence of postmating, prezygotic isolation.

This study shows that kin discrimination in toad tadpoles depends on population genetic structure and rearing environment, with admixed populations showing discrimination only under specific conditions.

The paper investigates the association between DNA methylation and cuticular hydrocarbon variation in stick insects, finding enriched differentially methylated regions in loci linked to these traits.

This study shows that social environment influences the timing of color pattern changes in anemonefish juveniles through gene expression and apoptosis mechanisms.

The paper shows that social communities of golden-crowned sparrows persist despite high membership turnover due to balanced recruitment and retention of individuals.

This study models the coevolution of sexual signaling and discrimination under varying mating conditions, finding two equilibria: one with indiscriminate mating and no signals, and another with perfect signaling and exclusive different-sex behavior.

The study examines how helper presence affects breeder and offspring survival in Florida scrub-jays, finding context-dependent fitness outcomes unrelated to helper relatedness.

The paper shows that early-life structured play in a safe environment improves learning-based adaptation in risky adult environments through reinforcement learning models.

The paper examines urbanization effects on color traits in two passerine birds, finding reduced carotenoid chroma and increased phenotypic variation in great tits, and altered brightness in blue tits.

The paper tests for paternal effects in a gynogenetic fish species and finds no evidence of paternal influence on offspring or brood size.

The paper simulates the Y-model to quantify phenotypic trade-offs, finding that mean allocation strategy, not mean resource acquisition, influences trade-offs, and that within-individual allocation dependence amplifies these effects.

This paper conducts a meta-analysis of 226 effect sizes from 80 studies to examine how host personality traits relate to parasitic infection, finding that experimental infections reduce activity and exploration, while observational studies show activity-exploration correlates with infection risk.

The paper tests if multisensory male displays improve female memory in tungara frogs, finding that memory is enhanced after signal fluctuations.

The paper examines whether body color polymorphism in birds correlates with ecological success, finding that polymorphic species have larger ranges, lower extinction risk, and more stable populations.

The paper examines reproductive behavior differences among populations of Lymnaea stagnalis, finding distinct behavioral traits and no phylogenetic signals, suggesting evolutionary processes like divergent selection drive variation.

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 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 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.

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.

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 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.

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.

The paper tests the social buffering hypothesis across 66 animal species, finding social species have lower demographic sensitivity to environmental variability, especially in unpredictable climates.

The paper examines global variation in C. elegans aggregation behavior, finding elevation-driven differences and evidence for natural selection shaping this collective behavior.

This study investigates how adult crowding affects Drosophila fitness, showing that body size and food surface area significantly influence outcomes, with small flies benefiting from higher densities.