Stephen Hugh Montgomery

The study compares oxidative physiology between two Heliconiini butterflies to determine if lifespan differences are linked to oxidative stress resistance.

This study examines sleep architecture differences between Heliconius melpomene and Dryas iulia, linking them to variations in memory investment.

This study characterizes cis-regulatory elements and predicts enhancers in Heliconiini butterflies using ATAC-seq and histone modification data, revealing temporal divergence and developing a CNN for enhancer prediction.

This study shows how visual system adaptation in Heliconius butterflies leads to species divergence in perception and behavior due to ecological pressures.

This study resolves phylogenetic conflicts in Collembola by showing ancient rapid radiation and incomplete lineage sorting, supporting Poduromorpha as the earliest-diverging lineage.

This study identifies the Neotropical butterfly genus Heliconius as a model for studying longevity evolution, finding heritable mechanisms of slowed ageing in long-lived species.

The paper compares the evolutionary changes in the central complex and mushroom bodies across Heliconiini butterflies, finding conservation in the central complex and expansion in the mushroom bodies linked to foraging behavior.

This study shows that visual acuity improves during early adulthood in Heliconius butterflies through neural development, despite no change in eye structure, and that this maturation coincides with reproductive behaviors and is disrupted in hybrids.

The paper investigates the genetic architecture of brain morphology in cichlid fish, showing modular genetic control of brain components and weaker genetic correlations in hybrids.

The paper examines sex-specific foraging strategies and sensory traits in Heliconius himera butterflies, finding females carry more pollen but both sexes forage on similar plants, with males having larger eyes and females larger mushroom bodies.

This study investigates cognitive healthspan in Heliconius butterflies, finding cognitive robustness in late life despite extended longevity.

The paper investigates how visual behaviour in Heliconius butterflies evolved through changes in mushroom body structure without increased investment in visual pathways.

This study identifies fgf8a as a key gene driving brain divergence in Lake Malawi cichlids through species-specific enhancer elements and functional experiments.

The paper reveals widespread genomic and epigenetic divergence in Heliconius erato populations, showing polygenic barriers to gene flow rather than few major-effect loci.

This study examines olfactory system evolution in Heliconiini butterflies, finding that antennal lobe size variation results from glomerular and hub volume shifts, with developmental plasticity influenced by environmental conditions.

This study examines two Neotropical butterfly radiations, revealing high rates of hybridization and chromosomal rearrangements as drivers of diversification.

The paper identifies convergent molecular evolution in Heliconiini butterflies associated with repeated transitions to gregarious larval behavior, focusing on genomic and transcriptomic changes.

The paper shows that light microhabitats in forests drive sensory convergence and divergence in mimetic butterflies' visual systems through mutualistic interactions.

Heliconius butterflies retain odour associations over eight days no better than outgroup Heliconiini, contrasting with their superior visual long-term memory, consistent with a modality-specific memory enhancement.

The paper traces the evolution of cyanogenic glucoside biosynthesis in Heliconius butterflies, showing gene loss and duplication linked to plasticity-first evolution and specialization in sequestration.

The paper examines neuroanatomical changes in Heliconius butterflies during ecological speciation, finding heritable reductions in visual brain investment at high altitudes.

This study investigates the evolution of the ant olfactory system across the Formicidae phylogeny, revealing ancestral complexity and lineage-specific adaptations in olfactory pathways and recognition cue processing.

The paper examines how mushroom body circuits in Heliconiini butterflies evolve, finding that some Kenyon cell populations expand faster than others, linked to behavioral changes, while dopaminergic neuron numbers remain conserved.

The paper shows that Heliconius butterflies with greater visual neural investment preferentially use visual cues over olfactory cues in conflicting sensory environments.

The paper examines eye morphology divergence between Heliconius species and their hybrids, finding adaptive differences and visual system disruption in hybrids.

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 characterizes structural variation in Heliconius butterfly genomes and links it to chromatin accessibility and cis-regulatory elements.