Animal Behavior and Reproduction

The paper examines how parental genotypes at two large-effect loci influence early survival in Atlantic salmon, showing context-dependent effects linked to maturation timing.

The paper tests Hamilton's selfish herd theory by exposing artificial caterpillar targets to bird predation, finding central targets survive better and warning signals enhance group survival.

The paper investigates the role of climate and habitat in the evolution of social grouping in lizards, finding that sociality is linked to cool, dry climates through indirect ecological adaptations.

The paper models how seminal fluid peptides synchronize sperm and egg release in Drosophila, showing SP exhaustion as a key signal and limiting sexual conflict over remating behavior.

This study shows that environment-modifying behaviors and microbiome inheritance in dung beetles affect heritable variation, with microbiomes potentially concealing genetic variation.

The paper investigates sexual antagonistic coevolution in Panopeus meridionalis, finding that extreme male-biased size dimorphism is driven by coercive mating strategies and limited female control over paternity.

The paper partitions lifetime reproductive output skewness into contributions from fixed traits and various forms of luck, finding lifespan variation is key to reproductive skew and exceptional success.

The paper decomposes population ecological life histories of 11,187 bird species to show how selection on mass explains most inter-specific variation in body mass, demography, and ecological traits.

The paper models how ornamental traits evolve as a defense against mimicry at the monogamy-polygyny interface, showing that increased female preference variation leads to unpredictable male phenotypes that are hard to mimic.

The paper examines guppy male phenotypes associated with coercive mating success, finding traits that partially overlap with those advantageous in cooperative mating.

The paper investigates whether DNA methylation changes mediate developmental plasticity in cane toad tadpoles exposed to cannibal or alarm cues, finding distinct methylation patterns for each cue type.

The paper critiques a previous study claiming menopause is widespread in mammals, showing its methodology is flawed and concluding menopause is rare.

The paper examines display evolution in leaf warblers, finding that core aggressive display features are conserved across species, with variations arising from discrete modifications.

The paper examines how larval and adult diet interactions affect lifespan and fecundity in Drosophila melanogaster, finding no consistent support for environmental matching or silver spoon models.

This study uses Bayesian multi-level path analysis to disentangle age-dependent causal pathways affecting multiple paternity in house sparrows, finding age influences differ between males and females.

The paper examines contributions to nest building and incubation in American Crows, finding equal participation between sexes with slight behavioral differences and no evidence of signaling through contributions.

This study examines group composition and dynamics in American Crows, finding unique patterns in auxiliaries and dispersal behaviors that challenge existing theories about cooperative breeding.

The paper examines nestling-care decisions in American Crows, finding that breeders adjust their feeding rates based on auxiliary contributions and that group size affects female breeders' nest attendance without clear reproductive benefits.

The paper re-examines gain curves in evolutionary ecology, showing they describe inputs rather than outcomes, and proposes a new model for sex allocation in hermaphrodites.

The paper discovers a new shell color polymorphism in Lymnaea stagnalis and shows it follows simple Mendelian inheritance.

The paper finds that in guppies, telomere length is negatively correlated with sperm production, suggesting a trade-off between reproduction and maintenance rather than aging.

The paper shows that a regime shift in Atlantic salmon populations led to a plastic response bypassing genetic influences on maturation age, despite unchanged allele frequencies.

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.

This study investigates the heritability of fetal testosterone in wild nutrias, finding sex-specific genetic architecture and low cross-sex genetic correlation.

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.