Z. A. Cheviron

Thermal acclimation in a non-migratory songbird occurs via changes to thermogenic capacity, but not conductance

This study shows that cold-acclimated black-capped chickadees increase their thermogenic capacity through higher metabolic rates and lean mass but do not change their thermal conductance.

Adaptive structural and functional evolution of the placenta protects fetal growth in high elevation deer mice

This study investigates how high elevation adaptation in deer mice affects placental structure and function to protect fetal growth under hypoxia, identifying conserved genetic pathways and genomic features involved.

The architecture of phenotypic flexibility within a complex trait: an empirical case study using avian thermogenic performance

This study examines phenotypic flexibility in avian thermogenic performance by analyzing physiological traits and metabolic rates in Dark-eyed Juncos under temperature changes, finding non-symmorphotic responses.

Haemosporidian infection does not alter aerobic performance in the Pink-sided Junco (Junco hyemalis mearnsi)

This study investigates the physiological effects of haemosporidian infection on Pink-sided Juncos and finds no correlation between infection and aerobic performance metrics.

Temperature heterogeneity correlates with intraspecific variation in physiological flexibility in a small endotherm

The paper examines how temperature variation in the environment correlates with physiological flexibility in Dark-eyed Juncos and their relatives, finding genetic and phenotypic variation linked to thermal heterogeneity.

Genetic variation in haemoglobin regulates breathing in high-altitude deer mice

This study shows that genetic variation in haemoglobin affects breathing patterns in high-altitude deer mice, independent of its role in oxygen transport.

The adaptive benefit of evolved increases in hemoglobin-O2 affinity is contingent on tissue O2 diffusing capacity in high-altitude deer mice

This study shows that increased hemoglobin-O2 affinity in high-altitude deer mice only benefits aerobic thermogenesis if paired with improved tissue O2 diffusion capacity.

X chromosome-dependent disruption of placental regulatory networks in hybrid dwarf hamsters

This study identifies X chromosome-driven placental gene expression disruptions in hybrid dwarf hamsters, linking them to hybrid developmental barriers.

Body temperature maintenance acclimates in a winter-tenacious songbird

This study shows that Dark-eyed Juncos adjust both heat production and conservation mechanisms during cold acclimation to improve body temperature regulation over time.

Adaptive shifts in gene regulation underlie a developmental delay in thermogenesis in high-altitude deer mice

The paper investigates the developmental delay in thermogenesis in high-altitude deer mice by analyzing transcriptomes of thermo-effector organs, finding adaptive shifts in gene regulation related to nervous system development and oxidative metabolism.