Animal Behavior and Reproduction

This study tracks activity variation in ruffs from early life to maturity, finding strong sex differences but inconsistent morph-specific activity differences.

This study shows Drosophila melanogaster females prefer longer sperm regardless of mating order and can adjust this preference based on factors like pheromones, indicating female-mediated cryptic choice.

This study shows that parental rejection in owl monkeys reduces offspring survival and alters behavior, with evidence of miRNA changes potentially linking to epigenetic transmission.

The paper examines how exposure to novel females affects testis mass and sperm production in male prairie voles, showing increased reproductive output in socially monogamous males.

The study examines nest construction repeatability in House Wrens, finding that cup composition is repeatable but nest dimensions are cavity-driven and not linked to fitness.

This study shows that reproductive decline in old polygynous males is due to seminal fluid limitations, not sperm number, using Drosophila melanogaster.

The study compares two populations of Neolamprologus brevis cichlids, finding that higher social interaction frequency correlates with larger brain size and specific neuroanatomical changes.

This study shows that social information from conspecific rivals influences oviposition decisions in Aedes aegypti, with effects varying by spatial scale and ecological context.

This study compares visual and chemical traits in sympatric and allopatric Morpho butterfly species to assess how ecological interactions drive trait evolution.

This study examines weapon diversity and aggression in field crickets, finding that body size affects contest outcomes but weapon shape and aggression are more closely linked.

This study models how individual task specialization influences division of labor in vertebrates, finding that direct survival benefits drive cooperation, while harsh environments favor division of labor.

This study identifies genetic factors underlying gut length variation in Lake Malawi cichlids, showing sex-specific quantitative trait loci and epistatic interactions linked to trophic level differences and sexual conflict.

This study compares brain size and architecture across ten cichlid species in different habitat complexities, finding larger brains in less complex habitats, challenging the Clever Foraging Hypothesis.

This study quantifies male African elephant personality durability across social contexts, finding consistent behaviors and social influences on individual character.

This study tracks 128 plants over 38 years to show that lifetime fecundity schedules vary among individuals and are subject to selection.

The paper investigates breeding coloration in male cardinalfish, finding that inconspicuous white structures in the lower jaw help conceal eggs during mouthbrooding, suggesting a functional shift from attracting mates to increasing survival.

The paper investigates whether personality homophily drives friendships in female water buffalo, finding that lower differences in social tension and dominance traits correlate with closer spatial associations.

This study investigates how disturbance and social environment affect background colour choice in rock-pool mosquitoes, finding significant social influence and individual variation.

The paper examines sex-specific changes in boldness and exploration in midday gerbils, finding that female colonists retain bold traits over generations while male traits decline.

The paper examines how social rank in African cichlid fish affects courtship and mating success in a controlled social experiment.

The paper examines how sex, plumage coloration, and boldness influence foraging strategies in European serins, showing sex-dependent links between individual traits and social foraging tactics.

The paper models optimal immunity investment under varying parasite pressure and sexual selection, showing resistance futility at high parasite abundance and tolerance futility at high virulence, but joint resistance-tolerance traits remain profitable.

This study shows that dispersal evolution in Drosophila melanogaster under protein-poor larval diets leads to distinct trait changes compared to standard diets.

This study examines how sexual selection and genetic drift interact in finite populations, showing their impact on trait-preference correlations and allele fixation.

This study examines how heat exposure affects mating behavior and fertility in monandrous Drosophila subobscura, finding plastic responses in females but not males.

This study examines how social conditions and temperature affect reproductive success and offspring performance in burying beetles under controlled experimental conditions.

The paper shows that environmental similarity between relatives reduces heritability estimates of reproductive timing in great tits by accounting for shared environments.

The paper identifies genetic loci underlying bill color variation in long-tailed finches, showing that yellow alleles arose and introgressed into a red subspecies under natural selection.

This study examines how temperature, light, and individual variation affect feeding motivation in pike cichlids, finding no environmental effect but consistent individual differences.

The paper tracks wild zebra finch pairs to show they maintain extreme spatial cohesion despite being nonterritorial and having short-range communication.