R. Baucom

Building a barrier: investigating the functional role and evolution of induced trichome production

This study investigates whether herbicide exposure induces changes in trichome traits in velvetleaf and links these changes to herbicide resistance and fitness.

Dicamba drift alters patterns of chewing herbivory in three common agricultural weeds

This study shows dicamba drift increases chewing herbivory in some weeds but changes herbivory types, affecting plant-herbivore interactions.

Variable inbreeding depression may explain associations between the mating system and herbicide resistance

The paper investigates how herbicide resistance in Ipomoea purpurea affects inbreeding depression and finds that resistant lineages show reduced inbreeding depression and signs of outbreeding depression in some traits.

Adaptive and maladaptive expression plasticity underlying herbicide resistance in an agricultural weed.

The paper examines gene expression plasticity and evolution in herbicide-resistant morning glories, finding that plastic responses are often adaptive and selection increases plasticity.

Belowground competition favors character convergence but not character displacement in root traits

This study tests if character displacement affects root trait evolution in two morning glory species, finding convergence instead of displacement under competition.

Shifts in outcrossing rates and changes to floral traits are associated with the evolution of herbicide resistance in the common morning glory

The paper shows herbicide-resistant populations of Ipomoea purpurea self-fertilize more and have altered floral traits compared to susceptible populations.

The relative contribution of natural landscapes and human-mediated factors on the connectivity of a noxious invasive weed

This study examines how human factors and natural landscapes affect genetic connectivity in Ipomoea purpurea, finding that human population density is a key predictor of genetic differentiation.