K. A. Rosvall

Repeated behavioral evolution is associated with targeted convergence of gene expression in cavity-nesting songbirds

The paper investigates convergent evolution in cavity-nesting birds, finding behavioral similarities but limited gene expression convergence across species.

How altricial birds respond to a heat challenge: organismal perspectives on coping with a future climate scenario

This study examines how 12-day-old tree swallows cope with a 4.5°C heat challenge, finding individual variation in heat shock protein expression and physiological responses that may influence climate adaptation.

Plasticity in female timing may explain current shifts in breeding phenology of a North American songbird

This study shows that female dark-eyed juncos breed earlier in response to warmer springs, with plasticity in timing playing a key role in phenological shifts due to climate change.

Nesting strategy shapes territorial aggression but not testosterone: a comparative approach in female and male birds

This study compares territorial aggression and testosterone levels between cavity-nesting and non-cavity-nesting birds, finding increased aggression but no difference in testosterone.

Testosterone secretion varies in a sex- and stage-specific manner: insights on the regulation of competitive traits from a sex-role reversed species

This study examines testosterone secretion in Northern Jacanas, finding similar levels in females and incubating males but higher in copulating males, suggesting physiological regulation of competitive traits differs between sexes and parental roles.