Roger Guevara

The paper surveys historical yarrow populations to assess local adaptation to climate change, finding persistence with phenotypic and metabolic differentiation, but local extinction in the hottest and driest site.

This study uses geometric morphometrics to detect reproductive character displacement in damselfly hybrid zones, showing stronger signals in younger zones consistent with asymmetric reinforcement.

The paper introduces a method to assess cluster support in hierarchical analyses using a consensus topology and ecological concepts, and provides an R package for implementation.