Animal Behavior and Reproduction

This study quantifies developmental plasticity in C. elegans hermaphrodite sperm production across environments and finds it is often oocyte-limited, not sperm-limited, with genetic background affecting plasticity.

The paper uses simulations to show that direct-benefit sexual selection can lead to the erosion of the direct benefits it relies on, causing population decline.

The paper investigates parthenogenesis in rotifers, showing that maternal stochastic investment leads to bet-hedging strategies that enhance adaptability despite lack of genetic recombination.

The paper shows genetic differentiation in the sex-peptide network of Drosophila melanogaster predicts mating outcomes, supporting molecular-level sexually antagonistic co-evolution.

The paper experimentally shows that increased foraging encounters with non-kin promote social associations in a kin-based bird society.

This study investigates how hunger and testing cycles affect boldness and shoal size preference in zebrafish, finding that hunger influences shoal preference but not exploratory behavior.

The paper examines thermal plasticity of abdominal pigmentation in Drosophila species with different genetic architectures, showing a link between plasticity and heterozygosity.

The paper quantifies how different antipredator defenses—crypsis, aposematism, and evasiveness—effectively reduce predation in wild butterfly-prey systems.

This study shows N. vitripennis males can distinguish hosts with conspecific females from those with heterospecific females, while N. longicornis males can only do so against N. oneida parasitized hosts.

This study examines behavioral adaptations in the Lord Howe Island cockroach, finding reduced male aggression and increased aggregation, supporting the behavioral island syndrome in invertebrates.

This study compares human and machine learning accuracy in identifying parasitic eggs using UV-visible photographs, finding machine learning models significantly outperform humans.

The paper investigates how thermal plasticity influences sex biases in pathogen transmission using Daphnia magna and Pasteuria ramosa, finding male- and female-biased transmission at different temperatures.

A study shows that phenotypic plasticity increases population persistence in novel environments using experimental microcosms with rotifers.

This study investigates morphological defenses and kin discrimination in rotifers to understand the evolution of cannibalistic polyphenisms.

The paper studies EPCs and EPFs in Nazca boobies, finding females have high EPC rates but no EPFs due to timing differences between EPC and WPC.

The paper shows that sex differences in growth, survival, and fledging timing lead to a female-biased fledgling sex ratio in Ruffs, a lekking bird with strong sexual size dimorphism.

The paper examines the repeatability of flight initiation distance in Common gulls and links it to nest-site characteristics and fitness outcomes.

This study finds no link between social network position and exploration tendency in cockroaches, and reports a single axis of social behavior variation.

The paper investigates if cricket exploratory behavior is influenced by contest outcomes, finding that winning increases exploration while losing does not significantly affect it.

The paper introduces Co-BreeD, a peer-reviewed and updatable database for cooperative breeding research, showing cooperative breeding is more prevalent than previously estimated.

The study finds that kin-sharing foraging grounds in solitary bush Karoo rats indicates mutual cooperation through kin selection and mutualism.

The paper examines the link between epigenetic potential and natal dispersal in Pied flycatchers, finding a positive association in certain comparisons but not others.

This study identifies discrete genetic modules underlying divergent reproductive strategies in three-spined stickleback, showing traits are genetically uncorrelated and map to different genomic regions.

The paper tests if weapon size in beetles is energetically costly by examining associations with metabolic rate, finding no significant link but identifying genetic and developmental influences on weapon size.

The paper tests whether male social dominance influences female mate choice and access to mates in pygmy halfbeaks, finding dominance affects access but not female preference.

This study shows that older mothers produce offspring with better development and growth efficiency, challenging the Lansing effect by demonstrating improved offspring performance with maternal age.

The paper shows that humidity, not temperature, regulates eyespot size in butterflies from populations where temperature is unreliable, and finds local adaptation in cue use and life history traits.

This study examines shoaling behavior in green chromides under various environmental manipulations, finding increased shoal fusion under stress and mixed-species shoaling with tilapia.

This study shows female fruit flies adjust egg clustering based on social cues, increasing clustering with group size and preferring mixed maternity clusters.

The paper examines age at first reproduction in three human populations under directional selection, finding low heritability and evolutionary stasis despite selection pressure.