S. E. Lipshutz

This study identifies cryptic diversity in Panamanian birds using mitochondrial DNA barcodes and finds ecological factors, not geography, drive speciation.

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

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.

The paper examines vocal divergence between two hybridizing shorebird species, finding differences in call characteristics that may function as reproductive barriers.