Animal Behavior and Reproduction

This study tests intralocus sexual conflict in Drosophila melanogaster using male-limited selection, finding mixed evidence with reduced male fitness variation and female fitness costs.

This study investigates whether Common cuckoo females select high-quality hosts for egg-laying and finds that host selection does not target host quality but may influence cuckoo nestling growth.

This study investigates how wing development in grasshoppers is influenced by genetics, environment, and their interaction, showing heritable variation and density-dependent plasticity in dispersal dimorphism.

This study investigates how larval crowding affects seminal proteome allocation in Drosophila melanogaster males and females, finding that small males transfer more seminal proteins despite producing less overall.

This paper shows that the evolution of dominance in a Mendelian trait is linked to changes in phenotypic plasticity, specifically in the pdm3 gene across Drosophila species.

The paper reanalyzes sperm length data from multiple Drosophila species using statistical clustering to determine the number of sperm morphs, finding that some species have two parasperm morphs while others have one.

The paper examines a hybrid zone between two manakin species, finding reduced offspring viability in hybrids, which may explain the zone's long-term stability.

The paper tests for sexually antagonistic coevolution in Drosophila by analyzing female post-mating transcriptomes and finds no evidence of coevolution, instead supporting environmental and female-expressed genetic factors.

This study investigates whether cancer in zebrafish affects offspring sex ratio and survival, finding no effect on sex ratio but higher offspring survival from cancerous females.

The paper quantifies subcellular organelle allocation in nematode sperm using electron microscopy to determine if organelle investment correlates with sperm size evolution.

The paper uses long-term tracking of male mice to show that social rank is stable and influenced by individual behaviors, with chasing linked to rank negotiation.

The paper investigates the link between male weapon evolution and breeding site type in Neotropical frogs, finding a macroevolutionary correlation and dynamic patterns of weapon gain and loss.

The paper develops models to test hypotheses about the relationship between sexual dimorphism and intersex correlation, finding that negative correlations arise only under specific assumptions.

The paper tests how resource allocation affects the honesty of warning signals in moths, finding that diet influences the correlation between signal strength and defense.

This study tracks mate-searching behavior in wild Sydney funnel-web spiders, finding males avoid risky conditions by moving less during rain and preferring warm nights after cool days.

This study examines how larval diets affect adult reproductive strategies and phenotypic plasticity in black soldier flies, revealing sex-specific differences in reproductive investment and mating behaviors.

The paper tests the hypothesis that social contexts drive delayed reproduction in birds by analyzing AFR across 963 species using phylogenetic methods.

The paper tests the Immuno-Competence Handicap Hypothesis by manipulating testosterone in wall lizard colour morphs, showing morph-specific strategies in immune and aggressive responses.

This study identifies gestation length as a key driver of brain size and litter size variation in eutherian mammals using phylogenetic path analysis.

The paper examines whether MHC class IIB dissimilarity influences mate choice and divorce in black-legged kittiwakes, finding dissimilar pairing in males but not females and no link to divorce probability.

This study examines behavioural changes in Rana arvalis along a latitudinal gradient, finding reversed behavioural patterns between tadpole and froglet stages.

The paper shows larger fish shoals in the wild better detect predator attacks while maintaining constant false alarms and faster decision times.

This study examines multiple signals in female and male gliding lizards, finding that females use diverse signals, including dewlaps, with different functional mechanisms compared to males.

The paper examines how MHC diversity affects fitness differently in male and female banded mongooses, finding higher diversity increases male fitness but decreases female fitness.

This study tracks behavioral plasticity in genetically identical fish clones over four weeks, finding an initial increase in plasticity before it decreases, challenging the expectation of decreasing plasticity in stable environments.

The study finds that leadership in collective movements incurs physiological costs, such as increased heart rate and reduced heart rate variability, particularly when leadership attempts fail.

This study examines how developmental and adult diets affect life-history traits in Drosophila melanogaster, showing diet-induced plasticity and context-dependent trait associations.

This paper presents a model showing that reversibility in phenotypic plasticity can evolve in stable environments and is favored in species with shorter lifespans due to uncertainty about environmental states across generations.

The paper reports an evolutionary shift in sperm morphology in the red-browed finch, similar to bullfinches, and suggests relaxed sexual selection may explain this change.

This study examines cognitive variation in great tits along an urbanization gradient, finding limited evolutionary change but identifying genetic factors linked to inhibitory control.